Midwife Licensure Exam High-Risk Pregnancy & Complications (Recognize & Refer) — High-Risk Pregnancy & Bleeding DisordersCheat Sheet
A printable cheat sheet for High-Risk Pregnancy & Bleeding Disorders, built for Midwife Licensure Exam reviewers who want one go-to reference in the final stretch. Covers formulas, key definitions, common question types, and the Professional Regulation Commission (PRC) — Board of Midwifery-specific twists you will see on Midwife Licensure Exam day.
Exam context
For the Midwife Licensure Examination, Professional Regulation Commission (PRC) — Board of Midwifery tests High-Risk Pregnancy & Complications (Recognize & Refer) under a "Core" label, with High-Risk Pregnancy & Bleeding Disorders in the 1st slot across 4 chapters. Midwife Licensure Exam candidates must clear the 75% weighted average cut on the 2026 paper, which draws about a meaningful share of High-Risk Pregnancy & Complications (Recognize & Refer) questions. Date to watch: April and November 2026 (expected).
High-Risk Pregnancy & Bleeding Disorders - Cheat Sheet
Your 30-minute pre-exam rapid-fire reference for bleeding disorders across all trimesters, critical pharmacology, and life-threatening complications. Master the painless vs. painful distinction, shock assessment, and ectopic emergency management that separate passing from failing on NLE obstetric questions.
Sections
Section Title
First-Trimester Bleeding: Abortion (Miscarriage) Types
Important Facts
- LEADING CAUSE: Chromosomal abnormalities account for >50% of first-trimester abortions.
- Risk factors: maternal infection, endocrine imbalance (especially thyroid), incompetent cervix, immunologic factors, maternal age >35.
- Assessment: count/weigh perineal pads (1 g = 1 mL blood loss), note amount/character of bleeding, cramping intensity, passage of tissue (SAVE all tissue for pathology).
- Monitoring: serial beta-hCG, hemoglobin/hematocrit for anemia, vital signs for shock.
- NO STRONG EVIDENCE that strict bed rest prevents loss, but activity limitation is advised for threatened abortion.
- Rh-negative, unsensitized mothers require Rho(D) immune globulin to prevent isoimmunization.
- Emotional care is CRITICAL: never minimize the loss, use respectful language (avoid 'miscarriage' if family prefers 'loss'), offer grief support and referrals.
Key Definitions
Term
Abortion (Miscarriage)
Example
A woman at 18 weeks with bleeding and a closed cervix is having a threatened abortion (not yet inevitable loss).
Definition
Termination of pregnancy before viability (before 20-24 weeks or fetal weight <500 g); may be spontaneous or induced.
Term
Threatened Abortion
Example
Spot bleeding at 10 weeks with closed cervix and no tissue passage.
Definition
Slight bleeding, mild cramping, cervix CLOSED — pregnancy may continue.
Term
Inevitable Abortion
Example
Heavy bleeding with open cervix at 12 weeks; membranes may rupture.
Definition
Moderate bleeding, cramping, cervix OPEN (dilated) — loss cannot be stopped.
Term
Incomplete Abortion
Example
Passage of some tissue with heavy bleeding and open cervix; D&C needed to remove retained products.
Definition
Some products of conception expelled, some RETAINED; heavy bleeding, open cervix.
Term
Complete Abortion
Example
Passage of all tissue, bleeding stops, cervix closes; no surgery needed.
Definition
All products of conception expelled; bleeding and cramping SUBSIDE; cervix CLOSES.
Term
Missed Abortion
Example
No fetal heart tones at expected date, but uterus still contains fetus; wait-and-see or surgical evacuation.
Definition
Fetus DIES but RETAINED in uterus; no bleeding initially; HIGH RISK of DIC if retained >4–6 weeks.
Term
Recurrent (Habitual) Abortion
Example
Patient with history of three miscarriages before 12 weeks; evaluate for chromosomal, endocrine, or immunologic causes.
Definition
Three or more consecutive spontaneous abortions.
Diagrams To Know
- Cervical os status in each abortion type (threatened=closed, inevitable/incomplete=open, complete=closed)
- Timeline of beta-hCG rise/fall in normal vs. arrested pregnancy
Common Values
Value
Every 48-72 hours
Symbol
β-hCG
Quantity
Normal beta-hCG doubling time (early pregnancy)
Value
Abnormally SLOW (fails to double)
Symbol
β-hCG (ectopic)
Quantity
Ectopic beta-hCG rise
Value
50 mg/m² IM
Symbol
MTX
Quantity
Methotrexate dose (ectopic)
Section Title
Ectopic Pregnancy: The Surgical Emergency
Important Facts
- Risk factors: pelvic inflammatory disease (PID), prior tubal surgery, previous ectopic pregnancy, intrauterine device (IUD) use, endometriosis, assisted reproductive techniques.
- Classic UNRUPTURED triad: unilateral lower-quadrant abdominal pain + delayed/abnormal menses + scant DARK vaginal spotting.
- RUPTURED TRIAD (EMERGENCY): sudden sharp stabbing pain + referred SHOULDER pain (Kehr sign) + RAPID signs of hypovolemic shock (tachycardia, hypotension, pallor, diaphoresis).
- Diagnostics: serial beta-hCG (abnormally SLOW rise, fails to double every 48-72 hours); transvaginal ultrasound (empty uterus + adnexal mass); culdocentesis (+blood = hemoperitoneum).
- Beta-hCG in ectopic typically lower than intrauterine pregnancy at same gestational age.
- Management UNRUPTURED: Methotrexate (MTX) 50 mg/m² IM dissolves trophoblastic tissue; requires folic acid AVOIDANCE, NO ALCOHOL, NO SUN EXPOSURE, strict follow-up hCG (must decline).
- Management RUPTURED: EMERGENCY salpingostomy (tube-sparing) or salpingectomy; prepare for shock → large-bore IV, 0.9% NaCl or LR, blood products, oxygen, continuous monitoring.
- Rho(D) immune globulin 300 mcg IM to Rh-negative, unsensitized mothers (or 50 mcg microdose if <13 weeks).
- Post-MTX teaching: pregnancy AVOID for 3 months (teratogenic), bleeding normal for 1-2 weeks, persistent/worsening pain = seek ER.
Key Definitions
Term
Ectopic Pregnancy
Example
Positive pregnancy test, unilateral lower-quadrant pain, empty uterus on ultrasound = ectopic until proven otherwise.
Definition
Implantation of fertilized ovum OUTSIDE the uterine cavity; >95% occur in fallopian tube (ampulla); rupture is a life-threatening emergency.
Term
Kehr Sign
Example
Patient reports right shoulder pain but no shoulder trauma; think ruptured ectopic with hemoperitoneum.
Definition
Referred SHOULDER-TIP pain from diaphragmatic irritation caused by intraperitoneal bleeding (classically RIGHT shoulder with ruptured ectopic).
Term
Cullen Sign
Example
Blue-black bruising around umbilicus in a patient with ruptured ectopic.
Definition
Bluish periumbilical discoloration from intraperitoneal bleeding; appears with significant hemorrhage.
Diagrams To Know
- Ectopic implantation sites (interstitial, isthmic, ampulla, fimbrial, ovarian, cervical, abdominal) and rupture risk by location
- MTX mechanism: inhibits dihydrofolate reductase → blocks DNA synthesis in rapidly dividing trophoblastic cells
Common Values
Value
>100,000 mIU/mL (often 200,000-1,000,000)
Symbol
β-hCG (complete)
Quantity
Typical beta-hCG in complete mole
Value
15-20%
Symbol
Choriocarcinoma (complete)
Quantity
Malignancy risk - complete mole
Value
1-5%
Symbol
Choriocarcinoma (partial)
Quantity
Malignancy risk - partial mole
Value
6-12 months post-evacuation
Symbol
Follow-up
Quantity
hCG monitoring duration
Section Title
Gestational Trophoblastic Disease (Hydatidiform Mole/Molar Pregnancy)
Important Facts
- Manifestations: UTERUS LARGER THAN EXPECTED for dates, dark-brown ('prune juice') or bright-red vaginal bleeding with possible PASSAGE OF VESICLES (grape-like tissue), EXCESSIVELY HIGH beta-hCG (often >100,000 mIU/mL).
- Hyperemesis gravidarum is SEVERE due to very high hCG production.
- RED FLAG: Preeclampsia signs (hypertension, proteinuria, edema) BEFORE 20 WEEKS → think molar pregnancy (preeclampsia normally after 20 weeks).
- Ultrasound findings: 'SNOWSTORM' appearance (echogenic tissue with multiple small anechoic spaces) or 'CLUSTER OF GRAPES' pattern; NO FETAL HEART TONES.
- Management: SUCTION CURETTAGE (vacuum evacuation) is primary treatment; RhoGAM to Rh-negative mothers.
- CRITICAL FOLLOW-UP: Serial beta-hCG for 6–12 MONTHS (monthly until normal, then every 3 months) to detect choriocarcinoma.
- hCG should progressively FALL to ZERO; rising/plateaued hCG = malignant transformation → chemotherapy (MTX).
- STRICT CONTRACEPTION for at least 1 YEAR: pregnancy would mask rising hCG and delay cancer detection.
- Teach patient to report abnormal bleeding, persistent hCG elevation, or any symptoms.
- Emotional support: acknowledge grief over loss of pregnancy while explaining careful monitoring for health protection.
Key Definitions
Term
Hydatidiform Mole (Molar Pregnancy)
Example
Uterus larger than dates, very high hCG, 'snowstorm' ultrasound, preeclampsia before 20 weeks = classic molar pregnancy.
Definition
Abnormal proliferation of trophoblast with degeneration of chorionic villi into grape-like fluid-filled VESICLES; no viable fetus; HIGH RISK of malignant transformation (choriocarcinoma).
Term
Complete Mole
Example
Severe hyperemesis, markedly elevated hCG >100,000 mIU/mL, snowstorm pattern.
Definition
NO fetal tissue; paternal chromosomes only (46,XX diploid); HIGHEST RISK of choriocarcinoma (~20%).
Term
Partial Mole
Example
Some fetal parts visible on ultrasound, less severe symptoms, lower hCG than complete mole.
Definition
CONTAINS SOME fetal tissue; triploid karyotype (69 chromosomes); LOWER MALIGNANCY RISK (~1-5%).
Term
Choriocarcinoma
Example
Rising hCG after evacuation of molar pregnancy signals choriocarcinoma; treat with MTX chemotherapy.
Definition
Malignant GTD arising from trophoblastic tissue; highly responsive to chemotherapy (methotrexate); must be detected early via serial hCG monitoring.
Diagrams To Know
- Complete vs. partial mole comparison (karyotype, fetal tissue, hCG level, malignancy risk)
- Post-molar pregnancy hCG monitoring timeline and when choriocarcinoma is suspected
Common Values
Value
Before 34 weeks
Symbol
Fetal maturity
Quantity
Gestational age for betamethasone administration
Value
12 mg IM every 24 hours × 2 doses
Symbol
Lungs
Quantity
Betamethasone dose
Value
Within 2 cm
Symbol
Distance
Quantity
Marginal previa: distance of placental edge from os
Section Title
Third-Trimester Bleeding: Placenta Previa
Important Facts
- Risk factors: multiparity, prior cesarean delivery or previa, advanced maternal age (>35), multiple gestation (twins/multiples), smoking, cocaine use, prior uterine curettage/D&C.
- Classic presentation: PAINLESS, bright-red vaginal bleeding, usually AFTER 28 weeks; may occur with Braxton-Hicks contractions.
- Uterus is SOFT, NON-TENDER with NORMAL tone (unlike abruption).
- Malpresentation common: breech, transverse lie (placenta blocks engagement of vertex).
- Diagnosis: TRANSVAGINAL (NOT transabdominal) ultrasound is gold standard; avoids speculum/digital exam until previa ruled out.
- ABSOLUTE CONTRAINDICATION: DO NOT perform vaginal exam, speculum exam, or rectal exam until previa excluded → can perforate low-lying placenta and cause catastrophic hemorrhage.
- Management STABLE PRETERM: Expectant management aims to prolong pregnancy; admit, bed rest, IV access, blood typed/crossmatched.
- Betamethasone 12 mg IM every 24 hours × 2 doses if delivery likely before 34 weeks (accelerates fetal lung maturity).
- Delivery: CESAREAN SECTION for total/partial previa at term or with heavy bleeding; marginal may allow trial of vaginal delivery if stable.
- HIGH RISK: Postpartum hemorrhage (lower segment contracts poorly; placental site may not compress adequately) → have uterotonic agents ready (oxytocin, ergot, carboprost).
- Pelvic rest: NO sexual intercourse, douches, or strenuous activity.
Key Definitions
Term
Placenta Previa
Example
Vaginal bleeding after 28 weeks with soft, non-tender uterus = previa until ruled out.
Definition
Placenta implants in LOWER UTERINE SEGMENT, partially or completely covering the INTERNAL CERVICAL OS; causes PAINLESS bright-red vaginal bleeding.
Term
Total (Complete) Previa
Example
Cesarean delivery mandatory; vaginal delivery is impossible.
Definition
Placenta COMPLETELY covers the internal cervical os.
Term
Partial Previa
Example
May be managed expectantly in early preterm; may become marginal with placental growth/uterine contractions.
Definition
Placenta partially covers the internal cervical os.
Term
Marginal Previa
Example
May allow vaginal delivery if no bleeding; ultrasound confirms location.
Definition
Placental edge lies within 2 cm of the internal cervical os.
Term
Low-Lying Placenta
Example
Often resolves as pregnancy advances due to differential uterine growth ('placental migration').
Definition
Placenta within lower segment but NOT covering os; lowest risk for bleeding.
Diagrams To Know
- Placental implantation locations in previa (total, partial, marginal, low-lying) relative to internal os
- Transvaginal ultrasound interpretation and distance measurement from os
Common Values
Value
Maternal hypertension
Symbol
HTN
Quantity
Most common risk factor
Value
Cocaine use
Symbol
Substance
Quantity
Second major risk factor
Value
Up to 10%
Symbol
Complication
Quantity
DIC risk in abruption
Section Title
Third-Trimester Bleeding: Abruptio Placentae (Placental Abruption)
Important Facts
- STRONGEST RISK FACTOR: Maternal hypertension (chronic or gestational/preeclampsia); also cocaine use, trauma (MVA, falls, intimate partner violence), short umbilical cord, smoking, anticoagulation, uterine anomaly.
- Pathophysiology: retroplacental bleeding causes placental separation → loss of placental function → fetal hypoxia + maternal hemorrhage + release of thromboplastin into maternal circulation → DIC.
- Classic triad: (1) PAINFUL vaginal bleeding, (2) RIGID, BOARD-LIKE, TENDER uterus with INCREASED TONE, (3) Signs of SHOCK (may exceed visible bleeding if concealed).
- Bleeding is DARK RED (as opposed to bright red in previa).
- Fetal distress and uterine hyperactivity/tetany are common.
- Diagnosis: clinical (no imaging can rule out abruption definitively); ultrasound may show retroplacental clot but normal ultrasound does NOT exclude abruption.
- Severity grading: Grade 0 (asymptomatic, found at delivery), Grade 1 (minor separation, stable), Grade 2 (moderate, fetal distress), Grade 3 (severe, fetal demise, DIC risk).
- Management is OBSTETRIC EMERGENCY: position LEFT LATERAL TILT (improves perfusion), oxygen, large-bore IV × 2, aggressive fluid/blood replacement (0.9% NaCl, LR, RBC, FFP, platelets, cryoprecipitate for DIC).
- Continuous fetal heart rate monitoring; measure fundal height (expanding girth suggests CONCEALED bleeding).
- Monitor coagulation: platelets, PT/PTT, fibrinogen, D-dimer (watch for oozing from IV sites, gums, petechiae, hematuria = DIC).
- EMERGENCY CESAREAN DELIVERY for significant abruption, fetal compromise, or maternal instability.
- Expectant management only for GRADE 1 (minor) abruption with stable vitals and reassuring FHR; frequent reassessment mandatory.
- Complication: DIC develops in up to 10% of abruptions; risk increases with severity and fetal demise.
Key Definitions
Term
Abruptio Placentae (Placental Abruption)
Example
Sudden severe abdominal pain with dark bleeding, rigid tender uterus, shock signs after 28 weeks = abruption until proven otherwise.
Definition
PREMATURE SEPARATION of a normally implanted placenta AFTER 20 weeks; causes PAINFUL dark-red bleeding with BOARD-LIKE RIGID UTERUS; HIGH RISK of DIC.
Term
Concealed Hemorrhage
Example
Patient has only scant vaginal bleeding but severe shock (tachycardia, hypotension) → suspect concealed abruption.
Definition
Bleeding TRAPPED BEHIND the placenta; external blood loss UNDERESTIMATES true loss; shock may exceed visible bleeding.
Diagrams To Know
- Abruption severity grading (0-3) with clinical features and management approach
- Pathophysiology cascade: placental separation → hemorrhage → thromboplastin release → DIC activation
Common Values
Value
300 mcg IM
Symbol
RhoGAM (standard)
Quantity
Standard RhoGAM dose
Value
50 mcg IM
Symbol
RhoGAM (micro)
Quantity
Microdose (first-trimester)
Value
28 weeks
Symbol
Routine
Quantity
Gestation for routine dose
Value
Within 72 hours
Symbol
Window
Quantity
Time window for post-event dose
Value
20 mcg
Symbol
Calculation
Quantity
RhoGAM per 1 mL fetal RBCs
Section Title
Rho(D) Immune Globulin (RhoGAM): Must-Know Pharmacology
Important Facts
- Mechanism: RhoGAM provides PASSIVE antibody (does NOT stimulate mother's own B cells to make anti-D); suppresses maternal immune response, protecting future pregnancies from hemolytic disease.
- STANDARD DOSE: 300 mcg IM at 28 weeks gestation + again WITHIN 72 HOURS after delivery of Rh-positive infant.
- MICRODOSE: 50 mcg IM used for FIRST-TRIMESTER events (spontaneous/induced abortion, ectopic pregnancy, molar pregnancy) if <12-13 weeks gestation.
- Also indicated after: amniocentesis, chorionic villus sampling (CVS), cordocentesis, abdominal trauma, placental abruption, antepartum hemorrhage, external cephalic version, fetal demise.
- Eligibility MUST CHECK: (1) Mother is Rh-NEGATIVE (RhD negative), (2) Mother's indirect Coombs is NEGATIVE (not already sensitized), (3) Baby is Rh-POSITIVE (RhD positive) OR baby's type is UNKNOWN.
- CONTRAINDICATION: Do NOT give if mother is already sensitized (positive indirect Coombs test) — RhoGAM provides no benefit and may worsen hemolytic disease.
- Dose adjustment: If excessive fetomaternal hemorrhage (>4 mL fetal RBCs or >15 mL fetal whole blood), calculate additional RhoGAM: 1 mL fetal RBCs requires 20 mcg RhoGAM; 1 mL fetal whole blood requires 4 mcg RhoGAM.
- Kleihauer-Betke test or flow cytometry quantifies fetal RBCs in maternal circulation to determine RhoGAM dose.
- Administration: Intramuscular (never IV); note lot number and document in chart.
- Timing: 28-week dose given regardless of prior sensitization (routine); post-event doses within 72 hours (efficacy decreases after 72 hours, minimal benefit after 28 days).
- Informed consent: Explain that RhoGAM is derived from human plasma (blood product); rare risk of infection but standard precautions minimize risk.
- Advise mother: avoid future pregnancies with non-Rh-negative partners if already sensitized; all non-O blood types carry transfusion risks in sensitized mothers.
Key Definitions
Term
Rho(D) Immune Globulin (RhoGAM)
Example
Rh-negative mother delivers Rh-positive baby → RhoGAM IM within 72 hours prevents hemolytic disease in future Rh-positive pregnancies.
Definition
Passive immunization with anti-D antibodies that destroys fetal Rh-positive RBCs before maternal immune response develops; prevents Rh isoimmunization (sensitization) in Rh-negative mother.
Diagrams To Know
- RhoGAM timing: 28-week routine dose + post-event doses within 72 hours for specific obstetric situations
- Eligibility decision tree: Rh status, Coombs result, baby's Rh status, sensitization history
Reactions Or Equations
Note
Standard 300 mcg covers up to 4 mL fetal RBCs (15 mL fetal whole blood); calculate excess and add to standard dose.
Equation
Additional RhoGAM = (mL fetal RBCs) × 20 mcg OR (mL fetal whole blood) × 4 mcg
Conditions
If fetomaternal hemorrhage >4 mL fetal RBCs or >15 mL fetal whole blood
Common Values
Value
≥30 mL/hour
Symbol
UOP
Quantity
Normal urine output target
Value
<25 mL/hour
Symbol
Shock sign
Quantity
Oliguria definition
Value
110-160 bpm
Symbol
FHR
Quantity
Normal fetal heart rate
Value
6-25 bpm fluctuation
Symbol
FHR variability
Quantity
Reassuring variability
Value
1 g
Symbol
Baseline
Quantity
Pad weight: dry
Value
15-20 g
Symbol
Heavy loss
Quantity
Pad weight: saturated
Section Title
Nursing Assessment & Monitoring in Pregnancy Bleeding
Important Facts
- ESTIMATION: Classify bleeding as SPOTTING (light), LIGHT (moderate amount), MODERATE (soaks 1-2 pads/hour), or HEAVY (>2 pads/hour).
- Count and WEIGH all perineal pads (save for measurement); note color (bright vs. dark red), presence of clots (>2 cm = significant), passage of tissue (SAVE for pathology).
- Monitor vital signs frequently: tachycardia is EARLY sign of shock (often >100 bpm before BP drops); hypotension is LATE sign.
- Other early shock signs: narrow pulse pressure, cool/clammy skin, restlessness/anxiety, delayed capillary refill, concentrated urine.
- Urine output target: ≥30 mL/hour (sign of adequate perfusion); oliguria (<25 mL/hr) suggests shock progression.
- ABSOLUTE CONTRAINDICATION with third-trimester bleeding: NO vaginal exam, NO digital cervical exam, NO rectal exam until previa ruled out by ultrasound → risk of catastrophic hemorrhage.
- Speculum exam is safe (visualize bleeding without digital trauma).
- IV access: Two LARGE-BORE (18-gauge or larger) peripheral lines for rapid fluid/blood infusion; central line for massive transfusion protocol.
- Fluid resuscitation: 0.9% NaCl or Lactated Ringer's for initial bolus (20-30 mL/kg), then maintain at 50-100 mL/hr depending on ongoing loss and urine output.
- Blood products: O-negative for emergent transfusion (before type/cross complete); transition to type-specific when available.
- Continuous fetal heart rate monitoring: assess baseline (110-160 bpm), variability (reassuring if 6-25 bpm fluctuation), accelerations (reassuring), decelerations (concerning if variable/late patterns).
- Monitor for DIC: watch for oozing from IV insertion sites, gums, petechiae, hematuria; assess coagulation labs (platelets, PT/PTT, fibrinogen, D-dimer).
- Position: LEFT LATERAL tilt in preterm (improves uteroplacental perfusion); semi-Fowler's in term (if not contraindicated by type of bleed).
- Nothing by mouth: NPO status in case emergency surgery needed.
- Emotional support: acknowledge loss, avoid clichés ('everything happens for a reason'), offer privacy for parents to grieve, facilitate baptism/blessing if desired, provide referrals to grief counseling and support groups (e.g., SHARE, RESOLVE in Philippines).
Key Definitions
Term
Pad Count Method
Example
Dry pad = 1 g; saturated pad = 15-20 g; a patient with 5 saturated pads has lost approximately 75-100 mL.
Definition
Quantify blood loss by counting and weighing perineal pads: 1 gram of pad weight = 1 mL of blood loss (1 g = 1 mL).
Term
Hypovolemic Shock (Stages)
Example
Early shock: HR 110, RR 20, BP 120/80, anxious. Late shock: HR 140+, RR 30+, BP 90/60, altered mental status.
Definition
Progressive loss of circulating blood volume; stages: compensated (intact BP, tachycardia), decompensated (falling BP, oliguria), irreversible (organ failure, death).
Diagrams To Know
- Progression of hypovolemic shock: early/compensated → late/decompensated → irreversible
- Assessment checklist: vital signs, urine output, skin perfusion, mental status, bleeding characteristics, fetal response
Reactions Or Equations
Note
Use multiple pads and cumulative weight over time to estimate total loss; heavy bleeding (>500 mL/hour) is life-threatening in obstetrics.
Equation
Blood Loss Estimation = Pad weight (g) × 1 mL/g
Conditions
Each gram of wet pad weight approximates 1 mL of blood loss (baseline dry pad weight ~1 g).
Common Values
Value
<100,000/μL (severe if <50,000)
Symbol
Platelets
Quantity
Platelet count in DIC
Value
<100 mg/dL (normal 200-400)
Symbol
Fibrinogen
Quantity
Fibrinogen in DIC
Value
>500 ng/mL (highly elevated)
Symbol
D-dimer
Quantity
D-dimer in DIC
Value
10 units (40 g fibrinogen)
Symbol
Cryo
Quantity
Cryoprecipitate dose
Value
10-15 mL/kg
Symbol
FFP
Quantity
Fresh frozen plasma dose
Value
5 points
Symbol
Severity
Quantity
DIC score ≥ this = overt DIC
Section Title
Disseminated Intravascular Coagulation (DIC) in Bleeding Disorders
Important Facts
- Triggers in obstetrics: missed abortion (retained fetus >4-6 weeks), abruptio placentae, amniotic fluid embolism (AFE), severe sepsis/chorioamnionitis, placental abruption with fetal demise, HELLP syndrome.
- Pathophysiology: release of thromboplastin (tissue factor) into maternal circulation → triggers coagulation cascade → consumes platelets, fibrinogen, and factors II, V, VIII → microthrombi form in capillaries → organ damage + bleeding from factor depletion (coagulopathy) + hemolysis.
- Laboratory findings: DECREASED platelets (<100,000/μL), DECREASED fibrinogen (<100 mg/dL), ELEVATED PT/INR, ELEVATED aPTT, ELEVATED D-dimer (>500 ng/mL).
- Clinical signs: OOZING from IV insertion sites, surgical wounds, gums; petechiae/purpura (especially on lower extremities, buttocks); hematuria; hematemesis; vaginal bleeding beyond expected; decreased urine output; altered mental status (microthrombi in brain).
- Severity: DIC scoring combines laboratory findings (platelets, D-dimer, PT prolongation, fibrinogen) + overt bleeding; >5 points = overt DIC (requires aggressive treatment).
- Management: (1) REMOVE THE TRIGGER (deliver baby, evacuate molar pregnancy, treat infection, remove dead fetus), (2) Restore circulating volume (0.9% NaCl, LR), (3) Replace consumed factors (packed RBCs, fresh frozen plasma for factors II/V/VII/X, platelets for count <50,000, cryoprecipitate for fibrinogen <100 mg/dL), (4) Monitor coagulation labs every 4-6 hours until stable.
- Cryoprecipitate: contains fibrinogen, von Willebrand factor, factors VIII and XIII; dosed at 10 units (each unit contains 150-250 mg fibrinogen); give 10 units (40 g fibrinogen) to target fibrinogen >150 mg/dL.
- Fresh frozen plasma: contains all vitamin K–dependent and other labile factors; dosed at 10-15 mL/kg to correct PT/aPTT prolongation.
- Nursing: maintain two large-bore IVs; monitor labs closely; watch for signs of bleeding/clotting; maintain urine output ≥30 mL/hr; avoid invasive procedures (NG tube, Foley if possible) that increase bleeding; explain treatment plan to family.
- Prognosis: DIC in obstetrics has better outcomes than in other settings (removal of trigger often curative); maternal mortality is ~10-15% with modern management; monitor for long-term sequelae (organ damage, psychological trauma).
Key Definitions
Term
Disseminated Intravascular Coagulation (DIC)
Example
Patient with concealed abruption develops oozing from IV sites, bleeding gums, petechiae, and hematuria → suspect DIC; check platelet count, PT/PTT, fibrinogen, D-dimer.
Definition
Uncontrolled activation of coagulation cascade throughout the circulation; consumes platelets and clotting factors → paradoxical bleeding AND thrombosis; complication of missed abortion, abruption, sepsis, amniotic fluid embolism.
Diagrams To Know
- DIC pathophysiology cascade: trigger → thrombin generation → platelet/fibrinogen consumption → coagulopathy + microthrombi + bleeding
- Coagulation lab interpretation in DIC: platelets ↓, fibrinogen ↓, PT ↑, aPTT ↑, D-dimer ↑
Common Values
Value
12 mg IM
Symbol
Beta
Quantity
Betamethasone dose (each injection)
Value
24 hours
Symbol
Timing
Quantity
Interval between doses
Value
2
Symbol
Course
Quantity
Number of doses
Value
Before 34 weeks
Symbol
Window
Quantity
Gestational age threshold
Section Title
Other Critical Pharmacology in High-Risk Pregnancy Bleeding
Important Facts
- Betamethasone dose: 12 mg IM given as TWO DOSES, 24 hours apart.
- Indication: PRETERM DELIVERY EXPECTED before 34 weeks (placenta previa with bleeding, preeclampsia, abruption, etc.).
- Efficacy peak: 24 hours to 7 days after administration; benefit decreases after 7 days.
- Benefits: Reduces RDS by ~50%, intraventricular hemorrhage (IVH) by ~50%, neonatal mortality by ~30%.
- Contraindications: Active infection (chorioamnionitis, maternal sepsis) — steroid may worsen; ongoing maternal seizures (not absolute but caution); maternal hypersensitivity.
- Side effects: Maternal hyperglycemia (monitor glucose, especially in diabetics), insomnia, mood changes, transient increase in WBC.
- Use in diabetes: May require insulin adjustments; monitor glucose closely.
- Documentation: Record lot number, dates/times of both doses, route (IM), site; educate mother on expected mild hyperglycemia and sleep disturbance.
- Dexamethasone: Alternative agent (8 mg IM × 4 doses, 12 hours apart) — less commonly used; betamethasone is preferred.
- Repeat courses: Single repeat course may be considered if risk of preterm delivery persists and <7 days since first course; excessive repeat courses increase neonatal infections and growth restriction (not routine).
- Must be given BEFORE delivery — has NO benefit if given after baby is born.
Key Definitions
Term
Betamethasone
Example
Pregnant woman at 32 weeks with placenta previa and active bleeding → administer betamethasone to reduce neonatal respiratory distress syndrome risk.
Definition
Glucocorticoid that accelerates fetal lung maturity (surfactant production) when preterm delivery is expected before 34 weeks.
Diagrams To Know
- Betamethasone efficacy timeline: onset at 24 hours, peak at 7 days, minimal benefit after 7 days
- Indications for betamethasone in obstetric bleeding (previa with bleeding, abruption, preeclampsia)
Reactions Or Equations
Note
Each dose is 12 mg (not cumulative 24 mg as single dose); must administer intramuscularly.
Equation
Betamethasone 12 mg IM × 2 doses, 24 hours apart
Conditions
Given when preterm delivery expected before 34 weeks gestation
Must Remember
Item
PAINLESS bright-red bleeding AFTER 28 weeks = PLACENTA PREVIA; PAINFUL dark-red bleeding with rigid uterus = ABRUPTIO PLACENTAE. This single distinction is heavily tested on NLE.
Rank
1
Why Critical
Guides immediate bedside decisions: previa = avoid vaginal exam (catastrophic bleed risk), maintain expectant mgmt if stable; abruption = emergency surgery prep, anticipate DIC, monitor coagulation labs.
Item
NEVER perform vaginal exam with third-trimester bleeding until previa is ruled out by ULTRASOUND (transabdominal or transvaginal). Even a speculum exam or digital cervical exam can perforate a low-lying placenta and cause fatal hemorrhage.
Rank
2
Why Critical
Violation of this rule is a common NLE 'trap' — you will see questions asking 'What is the first nursing action?' The answer is ULTRASOUND, NOT vaginal exam, NOT speculum exam.
Item
Rh-negative, unsensitized mother → give RhoGAM 300 mcg IM at 28 weeks + within 72 hours postpartum (if baby Rh-positive). MICRODOSE (50 mcg) for first-trimester losses (<13 weeks). Check maternal INDIRECT COOMBS is negative (eligibility). Mother's Coombs POSITIVE = do NOT give RhoGAM.
Rank
3
Why Critical
RhoGAM is one of the most frequently tested pharmacology items on NLE. Know the timing, dose, eligibility, and reason (passive antibody suppresses maternal response).
Item
Ectopic pregnancy rupture = SURGICAL EMERGENCY. Triad: unilateral abdominal pain + SHOULDER-TIP pain (Kehr sign from diaphragmatic irritation) + shock signs (tachycardia, hypotension, pallor). Do NOT wait for imaging — prepare for emergency salpingostomy/salpingectomy and massive transfusion.
Rank
4
Why Critical
NLE loves testing recognition of ectopic rupture and shock management. The shoulder pain is the KEY finding that distinguishes ruptured ectopic from other causes of abdominal pain in pregnancy.
Item
Hydatidiform mole: UTERUS LARGER THAN DATES, excessively high beta-hCG (often >100,000 mIU/mL), 'snowstorm' ultrasound, preeclampsia BEFORE 20 WEEKS. After evacuation, follow serial hCG for 6-12 months; rising hCG = choriocarcinoma (malignant transformation). Patient must AVOID PREGNANCY for 1 year.
Rank
5
Why Critical
High-yield combo: recognize clinical picture, anticipate malignancy, know that new pregnancy masks rising hCG and delays cancer detection, counsel contraception.
Item
DIC (disseminated intravascular coagulation) is triggered by missed abortion (retained >4-6 weeks), abruptio placentae with fetal demise, amniotic fluid embolism, sepsis. Watch for OOZING from IV sites, bleeding gums, petechiae, hematuria. Labs: ↓ platelets, ↓ fibrinogen, ↑ PT/aPTT, ↑ D-dimer. Management: remove trigger + blood products (FFP, platelets, cryo).
Rank
6
Why Critical
DIC complicates the most severe bleeding disorders and requires immediate recognition. Failure to spot DIC signs can be fatal — the exam will test both lab interpretation and clinical recognition.
Item
Betamethasone 12 mg IM × 2 doses (24 hours apart) accelerates fetal lung maturity when preterm delivery expected BEFORE 34 WEEKS. Must be given BEFORE delivery, not after. Peak efficacy 24 hours to 7 days; minimal benefit after 7 days.
Rank
7
Why Critical
Betamethasone is standard of care in preterm bleeding (previa, abruption, preeclampsia). NLE will ask about indication, dose, timing, and what it prevents (RDS, IVH, neonatal mortality).
Item
Methotrexate (MTX) for unruptured ectopic pregnancy: 50 mg/m² IM single dose. Mechanism: inhibits dihydrofolate reductase → blocks folate metabolism → stops trophoblastic proliferation. AVOID folic acid, alcohol, sun exposure. Follow declining hCG. Pregnancy avoid for 3 months (teratogenic).
Rank
8
Why Critical
MTX is the medical (non-surgical) option for stable, unruptured ectopic. NLE tests dose, mechanism, contraindications, and follow-up (hCG monitoring). Know difference from surgical approach.
Item
Estimate blood loss in pregnancy: Count/weigh perineal pads (1 g = 1 mL). Early shock signs: tachycardia (>100), restlessness, cool clammy skin, narrow pulse pressure. HYPOTENSION is LATE sign. Monitor urine output (goal ≥30 mL/hr); oliguria (<25 mL/hr) = shock progression. Establish large-bore IV × 2 for rapid resuscitation.
Rank
9
Why Critical
Hemorrhage assessment and shock management appear on every NLE. Know early signs (you act before BP drops) vs. late signs. Know what fluids to give and how to monitor perfusion (UOP, mental status, vital signs).
Item
Abortion types by cervical status: threatened (closed, may continue) → inevitable (open, loss certain) → incomplete (open, tissue partial) → complete (closed, all out) → missed (closed, fetus dead inside). Assessment: pad count, cramping, tissue passage, hCG, ultrasound. Emotional support is critical (never minimize loss). Rh-negative → RhoGAM.
Rank
10
Why Critical
First-trimester bleeding is heavily tested. Know how to differentiate types by cervical findings and outcome. Know that only threatened has potential to continue; all others = loss confirmed. Know emotional care is nursing priority.
Last Minute Tips
Tip
When you see 'third-trimester bleeding' on the exam, IMMEDIATELY think: Is this painless (previa) or painful (abruption)? This single distinction guides ~80% of your answer. If painful + rigid uterus → emergency, DIC risk, cesarean. If painless + soft uterus → expectant, position rest, no vaginal exam.
Context
NLE loves testing the painless vs. painful distinction. Many students confuse them or forget the uterine findings. Always ask yourself: 'What color is the blood? Is the uterus soft or rigid?' You will get it right.
Tip
For any obstetric bleeding, write down IMMEDIATELY: pad count, vital signs, fetal heart rate, urine output, and blood loss estimate in mL. Do NOT guess. The exam may give you a scenario like 'patient soaked 4 pads in 2 hours' — calculate: 4 pads × 15 g/pad = 60 g = 60 mL. This is 'light' bleeding, NOT shock yet. Trending is key.
Context
Hemorrhage quantification separates good nurses from mediocre ones on NLE. Examiners want to see systematic assessment, not vague 'heavy bleeding' descriptions.
Tip
RhoGAM eligibility check: Mother Rh-negative + Mother's indirect Coombs NEGATIVE = GIVE. Mother Rh-negative + Mother's indirect Coombs POSITIVE = DO NOT GIVE (already sensitized, RhoGAM useless). This single check appears in multiple NLE questions. Memorize it.
Context
Many students forget to check the Coombs test and mistakenly say 'give RhoGAM to Rh-negative mothers.' Wrong — you must verify she is NOT already sensitized. The Coombs test is the gate-keeper.
Tip
If you see 'beta-hCG rising slowly' or 'fails to double,' think ECTOPIC until proven otherwise. If you see 'beta-hCG extremely high (>100,000)' at early gestation + uterus larger than dates + snowstorm ultrasound, think MOLAR PREGNANCY. These labs are HUGE clinical clues on NLE.
Context
NLE loves testing hCG patterns. Train yourself to know: normal rise (doubles every 48-72 hrs) vs. slow rise (ectopic, miscarriage) vs. excessively high (mole). The pattern tells the story.
Tip
For shock in obstetric bleeding, remember the sequence: (1) TACHYCARDIA appears first (100-120 bpm), (2) COOL SKIN and restlessness follow, (3) NARROW PULSE PRESSURE develops, (4) HYPOTENSION appears LAST. If you wait for hypotension to act, you're too late. Act on early signs. This is the difference between pass and fail on shock questions.
Context
Shock is the #1 killer in obstetric bleeding. NLE will test whether you recognize EARLY shock vs. waiting for LATE (decompensated) shock. Early recognition = early intervention = saving mother and baby.
Comparison Tables
Rows
Values
- CLOSED
- Slight
- Mild
- NO
- Pregnancy may continue (50%)
- Rest, activity limits, follow hCG
Property
Threatened
Values
- OPEN
- Moderate
- Moderate
- Possible
- Loss certain
- Prepare for D&C or suction
Property
Inevitable
Values
- OPEN
- Heavy
- Moderate-severe
- YES (partial)
- Retained products present
- D&C or suction evacuation
Property
Incomplete
Values
- CLOSED
- Stops
- SUBSIDE
- YES (all)
- All products expelled
- Monitor hCG, no surgery needed
Property
Complete
Values
- CLOSED
- None initially
- None
- NO
- Fetus retained, dead
- D&C or expectant (DIC risk if >4-6 wks)
Property
Missed
Columns
- Type
- Cervical Os
- Bleeding
- Cramping
- Passage of Tissue
- Outcome
- Management
Table Title
First-Trimester Abortion Types: Cervical Status & Outcome
Rows
Values
- Bright RED, painless
- Dark RED, painful
Property
Bleeding character
Values
- Soft, NON-TENDER, normal tone
- RIGID, BOARD-LIKE, TENDER, increased tone
Property
Uterus
Values
- Usually copious
- May be concealed (behind placenta); shock > visible loss
Property
Visible bleeding
Values
- Variable/late (if bleeding ongoing)
- Common and early
Property
Fetal distress
Values
- Multiparity, prior cesarean
- Maternal HYPERTENSION
Property
Risk factor #1
Values
- CONTRAINDICATED (catastrophic bleed)
- OK if necessary (no additional trauma)
Property
Vaginal exam
Values
- Cesarean (total/partial previa)
- Cesarean for severity/distress
Property
Delivery
Values
- Postpartum hemorrhage
- DIC
Property
Complication risk
Columns
- Feature
- Placenta Previa (Painless)
- Abruptio Placentae (Painful)
Table Title
PAINLESS vs. PAINFUL Third-Trimester Bleeding: Placenta Previa vs. Abruptio Placentae
Rows
Values
- 46,XX (diploid, paternal origin only)
- Triploid (69,XXX, 69,XXY, 69,XYY)
Property
Karyotype
Values
- NONE
- PRESENT (some fetal parts)
Property
Fetal tissue
Values
- VERY HIGH (>100,000 mIU/mL)
- Lower than complete (lower hCG production)
Property
Beta-hCG level
Values
- SEVERE
- Mild-moderate
Property
Hyperemesis
Values
- BEFORE 20 weeks (red flag)
- May occur but less common early
Property
Preeclampsia timing
Values
- Snowstorm, grapes, NO fetal heart
- Snowstorm + some fetal tissue
Property
Ultrasound
Values
- 15-20% (HIGH)
- 1-5% (LOW)
Property
Malignancy risk
Values
- ~40% of all choriocarcinomas
- Rare
Property
Choriocarcinoma if develop
Columns
- Feature
- Complete Mole
- Partial Mole
Table Title
Complete Mole vs. Partial Mole: Karyotype, Fetal Tissue, & Malignancy Risk
Rows
Values
- Unruptured, stable, small ectopic (hCG often <5,000)
- Rising hCG after molar evacuation (malignant transformation)
Property
Indication
Values
- 50 mg/m² IM single dose (or multiple-dose protocol)
- Multiple-dose chemotherapy regimen (varies)
Property
MTX dose
Values
- Inhibits dihydrofolate reductase → blocks folate metabolism → stops trophoblastic proliferation
- Same — stops malignant trophoblastic cell division
Property
Mechanism
Values
- AVOID (antagonizes MTX)
- AVOID during chemotherapy
Property
Folic acid
Values
- AVOID (increases hepatotoxicity)
- AVOID
Property
Alcohol
Values
- AVOID (photosensitivity)
- MINIMIZE
Property
Sun exposure
Values
- Serial hCG until zero (declining)
- Serial hCG + chemotherapy protocols (weeks-months)
Property
Follow-up monitoring
Values
- Avoid for 3 months (teratogenic)
- Avoid 1+ year (protocol depends)
Property
Pregnancy after
Columns
- Feature
- Ectopic Pregnancy (Unruptured)
- Choriocarcinoma (Post-Molar)
Table Title
Methotrexate (MTX) Use in Bleeding Disorders: Ectopic vs. Molar Malignancy
Rows
Values
- 300 mcg IM
- At 28 weeks gestation
- Rh-negative, indirect Coombs negative
- Protects against sensitization from routine fetal-maternal hemorrhage during pregnancy
Property
Routine antepartum
Values
- 300 mcg IM
- Within 72 hours after delivery
- Rh-negative, indirect Coombs negative
- Must verify baby is Rh-positive or status unknown
Property
Postpartum (Rh-positive baby)
Values
- 50 mcg IM (microdose)
- Within 72 hours of loss
- Rh-negative, indirect Coombs negative
- If <12-13 weeks; smaller fetal blood volume in early pregnancy
Property
First-trimester loss (abortion, ectopic)
Values
- 50-300 mcg (per protocol)
- Within 72 hours
- Rh-negative, indirect Coombs negative
- Depends on extent of evacuation and fetal blood exposure
Property
Molar pregnancy evacuation
Values
- 300 mcg IM + extra for excess bleed
- Within 72 hours
- Rh-negative, indirect Coombs negative
- Calculate additional dose if fetomaternal hemorrhage >4 mL fetal RBCs
Property
Antepartum hemorrhage, trauma
Values
- DO NOT GIVE
- N/A
- Indirect Coombs POSITIVE
- RhoGAM provides no benefit; risk of hemolytic disease; requires different management (close monitoring, possible fetal transfusion)
Property
Already sensitized (Coombs +)
Columns
- Scenario
- Dose
- Timing
- Mother's Eligibility
- Notes
Table Title
Rho(D) Immune Globulin (RhoGAM): Timing, Dose, and Eligibility
Ready to practise for the Midwife Licensure Exam 2026?
Super Tutor's AI review plan adapts to your weak areas and builds a weekly practice schedule around your target Midwife Licensure Exam exam date.