High-Risk Pregnancy & Bleeding Disorders - Concept Map
Vaginal Bleeding in Pregnancy: Pathophysiology, Assessment, and Nursing Management
Related concepts
First-Trimester Bleeding (Weeks 0–20)
Sub concepts
- Abortion (Miscarriage)
- Ectopic Pregnancy
- Gestational Trophoblastic Disease (Hydatidiform Mole)
Relationship to central
Comprises spontaneous abortion and ectopic pregnancy; requires rapid differentiation of viability
Third-Trimester Bleeding (Weeks 20+)
Sub concepts
- Placenta Previa
- Abruptio Placentae
- Complications: Hypovolemic Shock and DIC
Relationship to central
Life-threatening bleeding patterns requiring emergency assessment and immediate intervention
Diagnostic and Imaging Modalities
Sub concepts
- Transvaginal Ultrasound
- Serial Beta-hCG Monitoring
- Transabdominal Ultrasound
- Coagulation Studies (PT, aPTT, D-dimer, Fibrinogen, Platelets)
Relationship to central
Confirm diagnosis and guide management decisions
Pharmacological Interventions
Sub concepts
- Methotrexate (Ectopic/Molar Malignancy)
- Rho(D) Immune Globulin (Isoimmunization Prevention)
- Betamethasone (Fetal Lung Maturity)
- Oxytocin/Methylergonovine (Hemorrhage Control)
Relationship to central
Direct treatment of specific bleeding disorders and prevention of complications
Nursing Process Application
Sub concepts
- NANDA-I Nursing Diagnoses
- Priority Nursing Interventions
- Patient and Family Teaching
- Emotional Support and Grief Care
Relationship to central
Systematic assessment, diagnosis, planning, intervention, and evaluation across all bleeding disorders
Legal and Professional Framework
Sub concepts
- RA 9173: Philippine Nursing Act
- Scope of Practice and Accountability
- Informed Consent and Patient Autonomy
- Reporting and Documentation Requirements
Relationship to central
Standards guiding safe, ethical nursing practice in Philippine healthcare settings
Concept connections
- Abortion (Miscarriage)Rho(D) Immune GlobulinRh-negative, unsensitized mothers require RhoGAM within 72 hours to prevent isoimmunization from fetal-maternal hemorrhage during abortion
- Ectopic PregnancyMethotrexateUnruptured ectopic pregnancies can be managed medically with methotrexate IM to dissolve trophoblastic tissue and preserve fallopian tube
- Ectopic PregnancyHypovolemic ShockRupture of ectopic pregnancy is a surgical emergency causing rapid hemorrhage and profound shock with Kehr sign (referred shoulder pain)
- Gestational Trophoblastic DiseasePreeclampsiaMolar pregnancy characteristically triggers preeclampsia before 20 weeks gestation, a red flag that normally appears only after 20 weeks
- Gestational Trophoblastic DiseaseSerial Beta-hCG MonitoringCritical follow-up for 6-12 months post-evacuation to detect rising hCG indicating malignant transformation to choriocarcinoma
- Placenta PreviaCesarean DeliveryTotal placenta previa requires elective cesarean section because vaginal delivery is impossible when placenta covers the cervical opening
- Abruptio PlacentaeDisseminated Intravascular CoagulationPlacental abruption releases thromboplastin into maternal circulation, triggering DIC with consumptive coagulopathy and bleeding from multiple sites
- Abruptio PlacentaeMaternal HypertensionChronic hypertension is the strongest known risk factor for abruptio placentae due to placental vascular changes and abruption
- Hypovolemic ShockCompensated Shock StageEarly recognition of compensatory mechanisms (tachycardia, cool skin, restlessness) allows nursing intervention before progression to decompensation
- Hypovolemic ShockAggressive IV ResuscitationLarge-bore IV access and rapid fluid/blood product replacement are life-saving interventions to restore perfusion and prevent multi-organ failure
- BetamethasoneFetal Lung MaturityGlucocorticoid given IM every 24 hours for 2 doses accelerates fetal lung development, reducing respiratory distress when preterm delivery is anticipated
- Placenta PreviaBetamethasoneIn hemodynamically stable previa patients with preterm bleeding, betamethasone allows fetal maturation while expectant management is pursued
- Bleeding AssessmentPad Counting and WeighingQuantifying blood loss (1 g = 1 mL) provides objective baseline to track ongoing bleeding and guide transfusion decisions
- First-Trimester BleedingTransvaginal UltrasoundTransvaginal imaging provides superior resolution to confirm intrauterine pregnancy location, fetal heart tones, and differentiate abortion from ectopic
- Ectopic PregnancySerial Beta-hCGAbnormally slow rise in hCG that fails to double every 48-72 hours is diagnostic indicator of ectopic pregnancy
- Abruptio PlacentaeConcealed BleedingHidden bleeding behind the placenta means visible blood loss can significantly underestimate true intravascular volume loss and shock severity
- Placenta PreviaNo Vaginal ExaminationVaginal or rectal exam can perforate a low-lying placenta and cause catastrophic hemorrhage, a critical safety rule
- Disseminated Intravascular CoagulationFibrinogen MonitoringProgressive consumption of fibrinogen in DIC results in hypofibrinogenemia; levels below 100 mg/dL signal severe coagulopathy requiring cryoprecipitate
- Patient TeachingWarning Signs RecognitionEducating pregnant women to immediately report vaginal bleeding, severe abdominal pain, shoulder-tip pain, and dizziness enables early diagnosis and treatment
- Grief CareEmotional Support After LossAcknowledging the loss, allowing parents to see/hold the fetus, and referring to support services are essential nursing interventions for healing
- MethotrexateFolic Acid AntagonismMethotrexate blocks dihydrofolate reductase; patients must avoid folic acid supplements and alcohol, and monitor beta-hCG for tissue dissolution
- Rho(D) Immune GlobulinIndirect Coombs TestRhoGAM is only effective if mother is Rh-negative and indirect Coombs is negative (not already sensitized); positive Coombs means mother already has anti-D antibodies
- Third-Trimester Bleeding DiscriminationUterine Tone AssessmentUterine tone is the bedside discriminator: soft non-tender uterus suggests previa; rigid board-like tender uterus suggests abruption
- Hydatidiform MoleAvoid Pregnancy One YearConception during follow-up after molar evacuation would cause rising hCG from the new pregnancy, masking malignant transformation signal
- Nursing ProcessMaslow Hierarchy PriorityPhysiological needs (breathing, circulation, shock prevention) and safety (fetal monitoring, preventing hemorrhage) are prioritized before psychosocial needs
- RA 9173 Philippine Nursing ActScope of Nursing PracticeUnder RA 9173, Filipino nurses are accountable for assessment, independent nursing diagnoses, and safe delegation of care in high-risk obstetrics
- Coagulation StudiesDIC MonitoringPT, aPTT, platelets, fibrinogen, and D-dimer together assess the degree of DIC; serial testing tracks progression and treatment response
- Continuous Fetal MonitoringFetal Distress RecognitionHeart rate patterns (late decelerations, bradycardia) and decreased variability signal fetal hypoxia from blood loss or placental insufficiency
Diagrams
High-Risk Pregnancy & Bleeding Disorders: Complete Concept Hierarchy
This comprehensive mind map displays the complete hierarchical structure of High-Risk Pregnancy & Bleeding Disorders. It organizes content into six major branches: First-Trimester Bleeding (abortion, ectopic, molar disease), Third-Trimester Bleeding (previa, abruption), Assessment Framework, Pharmacology, Complications (shock and DIC), and Patient Teaching. Each branch decomposes into specific sub-concepts, manifestations, and management strategies. This visual enables rapid concept review and identification of relationships between pathophysiology, assessment findings, interventions, and patient outcomes.
Vaginal Bleeding in Pregnancy: Diagnostic Algorithm and Management Decision Tree
This diagnostic flowchart guides the nurse through systematic decision-making when confronted with vaginal bleeding in pregnancy. It branches on gestational age first (first-trimester versus third-trimester), then follows clinical presentation patterns unique to each disorder. Key decision points include: rupture signs in ectopic pregnancy, character of bleeding (painless versus painful), and maternal Rh status. The flowchart emphasizes critical safety rules (no vaginal exam in third-trimester bleeding) and highlights emergency versus non-emergency pathways. This visual ensures the nurse collects data in a logical sequence and arrives at the correct diagnosis and management plan.
Recognition and Management of Hypovolemic Shock in Pregnancy Bleeding
This flowchart illustrates the three progressive stages of hypovolemic shock specific to obstetric hemorrhage and delineates the escalating nursing interventions required at each stage. Starting from early compensatory signs (tachycardia, cool skin, restlessness), it progresses through decompensated shock (hypotension, oliguria, altered mental status) to irreversible shock (profound hypotension, absent pulses, profound acidosis). For each stage, the chart specifies measurable clinical indicators and corresponding priority nursing actions, including IV access, fluid administration, blood typing, oxygen therapy, and preparation for emergency delivery. The flowchart emphasizes that early recognition and action during the compensated stage can prevent progression to decompensated or irreversible shock. Monitoring parameters and laboratory values are integrated throughout to guide decision-making and evaluate treatment effectiveness.
Rho(D) Immune Globulin Administration: Eligibility, Dosage, and Timing
This flowchart provides a complete algorithm for determining RhoGAM eligibility, appropriate dosage, timing, and administration. It begins with maternal Rh status verification and proceeds through the critical eligibility check: the indirect Coombs test must be negative (mother not already sensitized). The chart then branches based on gestational age and event type, directing the nurse to choose between microdose (50 mcg for first-trimester events) and standard dose (300 mcg for late pregnancy and delivery). Timing within 72 hours is emphasized, along with assessment for large fetal-maternal bleeds that may require additional doses. The flowchart includes verification steps (infant direct Coombs test must be negative) and patient education points. This visual ensures consistent, protocol-driven administration that prevents Rh isoimmunization and protects future pregnancies.
Distinguishing Placenta Previa from Abruptio Placentae: Critical Differences
This comparative flowchart is one of the most critical NLE discriminators: it juxtaposes placenta previa and abruptio placentae side-by-side, contrasting their presenting signs, assessment findings, diagnostic confirmation, and management. The key distinction starts immediately: previa presents with painless bright-red bleeding and a soft non-tender uterus, while abruption presents with painful dark-red bleeding and a rigid board-like tender uterus. The flowchart then follows each pathway through diagnostic testing (ultrasound and coagulation studies confirm the diagnosis), and delineates divergent management: previa typically requires bed rest and expectant management with possible betamethasone for fetal maturity, culminating in elective cesarean delivery; abruption demands emergency response, aggressive resuscitation, monitoring for DIC, and immediate cesarean delivery. This visual reinforces the crucial safety principle that NO vaginal exam should ever be performed with third-trimester bleeding until previa is ruled out.
Stages of Spontaneous Abortion (Miscarriage) and Clinical Progression
This state diagram maps the clinical progression of spontaneous abortion from the initial threatened stage through to either continuation of pregnancy or completion of loss. The diagram shows the five primary pathways: threatened abortion that continues to term, threatened abortion that progresses to inevitable then incomplete to complete abortion, and the critical missed abortion pathway. Missed abortion is emphasized because of its unique DIC risk if retained beyond 4–6 weeks. Each state box contains the specific clinical and laboratory findings that define that stage (e.g., cervical status, bleeding amount, beta-hCG trend). This visual helps the nurse understand that abortion is not a single event but a progression of physiological changes, each with distinct assessment findings and management needs. The pathway emphasizes the importance of careful monitoring and the need for prompt intervention in missed abortion to prevent coagulopathy.
Distribution of High-Risk Pregnancy Bleeding Causes by Trimester
This pie chart illustrates the relative frequency distribution of major bleeding disorders across pregnancy. Spontaneous abortion accounts for approximately 40% of bleeding cases (combining threatened, inevitable, and complete miscarriages), reflecting that early pregnancy loss is the most common complication of pregnancy. Ectopic pregnancy represents 25% of bleeding presentations, making it the second most common diagnosis encountered. Gestational trophoblastic disease is the least common at 8%. In the third trimester, placenta previa (17%) is slightly more common than abruptio placentae (10%), but both are obstetric emergencies that the nurse must recognize and manage rapidly. This distribution reminds the nurse that while all five conditions are tested heavily on the NLE, abortion and ectopic pregnancy together account for two-thirds of pregnancy-related bleeding cases.