NLE Renal & Urinary Nursing — Renal & Urinary Assessment & DiagnosticsExam Answer Templates

Marks

1

Topic

Laboratory Tests — Serum Creatinine

Difficulty

easy

Template Id

T1

Examiner Tip

For 1-mark questions, the examiner is looking for one specific correct fact. Include the unit and the exact range. Adding a brief clinical significance statement (as shown above) demonstrates deeper understanding and protects you if your number is slightly off.

Model Answer

Normal serum creatinine is 0.6–1.2 mg/dL. It is the most specific and reliable indicator of renal function because it is produced at a steady rate from muscle metabolism and excreted almost entirely by the kidneys.

Question Type

very_short_answer

Answer Structure

• State the exact normal value range (0.6–1.2 mg/dL) [1 mark]

Scoring Breakdown

Common Mark Deductions

• Writing 'within normal range' without stating the actual value — earns 0 marks
• Confusing creatinine with BUN values (BUN = 10–20 mg/dL)
• Stating the wrong unit (e.g., mEq/L instead of mg/dL)

Key Phrases To Include

• 0.6–1.2 mg/dL
• serum creatinine
• most specific indicator of renal function

Marks

1

Topic

Laboratory Tests — BUN:Creatinine Ratio

Difficulty

medium

Template Id

T2

Examiner Tip

The NLE loves the BUN:Creatinine ratio because it tests your ability to differentiate prerenal from renal causes. Memorize: HIGH ratio + normal creatinine = PRERENAL (dehydration). Both values elevated with normal ratio = INTRINSIC renal disease.

Model Answer

The normal BUN:Creatinine ratio is 10:1 to 20:1. A ratio greater than 20:1 with a normal serum creatinine indicates a PRERENAL cause such as dehydration or hypovolemia — the problem is reduced blood flow to the kidney, not kidney tissue damage.

Question Type

very_short_answer

Answer Structure

• State the normal ratio (10:1–20:1) [0.5 mark]
• State the significance of a high ratio >20:1 = prerenal cause [0.5 mark]

Scoring Breakdown

Common Mark Deductions

• Stating only the normal ratio without clinical interpretation
• Confusing prerenal with intrinsic renal disease
• Missing the qualifier 'with normal creatinine' — an essential clinical detail

Key Phrases To Include

• 10:1 to 20:1
• greater than 20:1
• prerenal
• dehydration
• hypovolemia

Marks

2

Topic

Nursing Assessment — Urine Output Parameters

Difficulty

easy

Template Id

T3

Examiner Tip

Two-mark questions require two distinct content points. The examiner will split marks: one for oliguria/anuria definitions, one for the minimum acceptable output. Answer each part clearly and separately. Never combine them in one vague sentence.

Model Answer

Oliguria is a urine output of less than 400 mL per day (or less than 0.5 mL/kg/hr), indicating severely reduced kidney filtration. Anuria is a urine output of less than 100 mL per day, representing near-complete cessation of urine production. The minimum acceptable urine output for an adult is 30 mL/hr (approximately 0.5 mL/kg/hr), which signals adequate renal perfusion and cardiac output.

Question Type

short_answer

Answer Structure

• Define oliguria with specific value: <400 mL/day or <0.5 mL/kg/hr [0.5 mark]
• Define anuria with specific value: <100 mL/day [0.5 mark]
• State minimum acceptable adult UO: 30 mL/hr or 0.5 mL/kg/hr [1 mark]

Scoring Breakdown

Common Mark Deductions

• Stating oliguria as <500 mL/day — the correct clinical value is <400 mL/day
• Omitting the per-kilogram calculation (0.5 mL/kg/hr) which shows clinical depth
• Not defining anuria separately — each term earns its own partial mark

Key Phrases To Include

• oliguria
• <400 mL/day
• <0.5 mL/kg/hr
• anuria
• <100 mL/day
• 30 mL/hr
• minimum acceptable

Marks

2

Topic

Laboratory Tests — Creatinine Clearance / 24-hour Urine

Difficulty

medium

Template Id

T4

Examiner Tip

The NLE frequently tests the '24-hour urine' collection procedure. The examiner is specifically looking for 'DISCARD the first voiding' — this is the number one tricky detail. Students who write 'collect the first voiding' lose the mark. The refrigeration instruction is a standard specimen care principle.

Model Answer

For a 24-hour urine collection for creatinine clearance, the nurse instructs the patient to: (1) DISCARD the first morning voiding at the start of the collection period — this establishes a clean starting point; then collect ALL urine voided over the next 24 hours, including the final voiding at the end. (2) Keep the urine specimen container refrigerated or on ice throughout the collection to preserve specimen integrity. Missing even one voiding invalidates the entire 24-hour collection.

Question Type

short_answer

Answer Structure

• Instruction 1: Discard first voiding, then collect ALL urine for 24 hours [1 mark]
• Instruction 2: Keep specimen refrigerated/on ice throughout collection [1 mark]

Scoring Breakdown

Common Mark Deductions

• Stating to include the first voiding — this is incorrect and a classic NLE trap
• Not mentioning specimen preservation (refrigeration)
• Omitting the consequence of missing a specimen — shows incomplete understanding

Key Phrases To Include

• discard first voiding
• collect ALL urine
• 24 hours
• refrigerated
• on ice
• invalidates the test

Marks

2

Topic

Urinalysis — Specific Gravity

Difficulty

medium

Template Id

T5

Examiner Tip

The word 'fixed' is the key clinical discriminator the examiner is looking for. Any specific gravity value that does not change with hydration status means the kidney cannot regulate concentration — this is isosthenuria, a sign of severe renal impairment. Always use the word 'fixed' in your answer.

Model Answer

Normal urine specific gravity ranges from 1.005 to 1.030, reflecting the kidney's ability to concentrate or dilute urine. A high specific gravity (near 1.030) indicates concentrated urine, as seen in dehydration. A low specific gravity (near 1.005) indicates dilute urine, as seen with high fluid intake or diuretic use. A FIXED specific gravity of approximately 1.010 — meaning it does not vary regardless of fluid intake — indicates the kidney has LOST its concentrating and diluting ability, which is a hallmark finding of chronic renal failure (isosthenuria).

Question Type

short_answer

Answer Structure

• State normal range: 1.005–1.030 [0.5 mark]
• Explain high vs. low values briefly [0.5 mark]
• Define fixed specific gravity ~1.010 = lost concentrating ability / renal failure / isosthenuria [1 mark]

Scoring Breakdown

Common Mark Deductions

• Stating the normal range incorrectly (e.g., 1.001–1.020)
• Not explaining what 'fixed' means — just saying 'low' is insufficient
• Failing to connect fixed SG to renal failure pathophysiology

Key Phrases To Include

• 1.005–1.030
• fixed specific gravity
• 1.010
• lost concentrating ability
• renal failure
• isosthenuria

Marks

3

Topic

Diagnostic Procedures — IVP/Contrast Studies

Difficulty

medium

Template Id

T6

Examiner Tip

This is a classic 3-mark question format: three distinct safety actions, each worth one mark. The examiner will award one mark per complete action-with-rationale. The metformin instruction is the most commonly missed — memorize 'HOLD METFORMIN + contrast = lactic acidosis risk.' This appears almost every NLE cycle.

Model Answer

Before an Intravenous Pyelogram (IVP) with iodinated contrast dye, the nurse performs the following pre-procedure responsibilities: 1. ALLERGY ASSESSMENT: Assess the patient for allergy to iodine, shellfish, or previous contrast media reactions — iodinated contrast can cause anaphylaxis. Report any allergy to the physician before proceeding. 2. RENAL FUNCTION CHECK: Obtain and review serum BUN and creatinine levels — contrast media is nephrotoxic and contraindicated in patients with significantly impaired renal function. Ensure adequate hydration before and after the procedure to flush the dye. 3. MEDICATION MANAGEMENT — HOLD METFORMIN: Instruct the patient to hold metformin (an oral antidiabetic agent) before and for 48 hours after the procedure, as the combination of contrast dye and metformin increases the risk of lactic acidosis.

Question Type

short_answer

Answer Structure

• Point 1: Assess for iodine/shellfish/contrast allergy — risk of anaphylaxis [1 mark]
• Point 2: Check BUN and creatinine — contrast is nephrotoxic; ensure hydration [1 mark]
• Point 3: Hold metformin — risk of lactic acidosis with contrast [1 mark]

Scoring Breakdown

Common Mark Deductions

• Mentioning allergy without specifying iodine/shellfish — too vague for full marks
• Omitting the metformin hold — this is a high-yield NLE point that many miss
• Not providing rationale for each action — interventions without rationale earn partial marks only

Key Phrases To Include

• iodine allergy
• shellfish allergy
• contrast allergy
• BUN and creatinine
• nephrotoxic
• hydration
• hold metformin
• lactic acidosis

Marks

3

Topic

Laboratory Tests — GFR and CKD Staging

Difficulty

medium

Template Id

T7

Examiner Tip

A practical memory trick: CKD stages go 90, 60, 30, 15 — think of it as halving the threshold each stage. The NLE most frequently tests Stage 5 ESRD (<15 mL/min) and the dialysis indication. Always write the full stage name 'End-Stage Renal Disease (ESRD)' for maximum marks.

Model Answer

Glomerular Filtration Rate (GFR) is the best overall measure of kidney function, representing the volume of plasma filtered per minute (normal: 90–120 mL/min/1.73 m²). The five CKD stages based on eGFR are: • Stage 1: GFR ≥90 mL/min (kidney damage with normal function) • Stage 2: GFR 60–89 mL/min (mild decrease) • Stage 3: GFR 30–59 mL/min (moderate decrease) • Stage 4: GFR 15–29 mL/min (severe decrease) • Stage 5 — End-Stage Renal Disease (ESRD): GFR <15 mL/min Dialysis (or kidney transplantation) is typically required when GFR falls below 15 mL/min (Stage 5 ESRD), as the kidneys can no longer adequately filter metabolic wastes and regulate fluid and electrolyte balance.

Question Type

short_answer

Answer Structure

• State normal GFR: 90–120 mL/min/1.73 m² [0.5 mark]
• List all 5 CKD stages with corresponding GFR values [1.5 marks]
• State dialysis indication at GFR <15 mL/min = Stage 5 ESRD [1 mark]

Scoring Breakdown

Common Mark Deductions

• Mixing up GFR values across stages — memorize in order
• Stating dialysis is needed at Stage 4 (<30) — incorrect; the threshold is <15
• Omitting that GFR is the 'best overall measure' of kidney function — this phrase earns distinction marks

Key Phrases To Include

• GFR
• 90–120 mL/min/1.73 m²
• Stage 5
• ESRD
• <15 mL/min
• dialysis
• best overall measure

Marks

3

Topic

Urinary Catheterization — CAUTI Prevention

Difficulty

medium

Template Id

T8

Examiner Tip

CAUTI prevention is a patient safety standard that the Board of Nursing consistently tests. The examiner is looking for three specific evidence-based interventions. Remember the priority order: closed system → below bladder → remove ASAP. Each answer must include WHY (the rationale) to earn full marks.

Model Answer

The following are priority nursing interventions for CAUTI prevention in a patient with an indwelling urinary catheter: 1. MAINTAIN A CLOSED DRAINAGE SYSTEM: Keep the catheter-tubing-bag system continuously closed and intact. Do not disconnect tubing unnecessarily, as breaks in the closed system are the primary route for bacterial entry. 2. KEEP THE DRAINAGE BAG BELOW THE LEVEL OF THE BLADDER AT ALL TIMES: This prevents retrograde (backward) flow of urine from the bag into the bladder, which would introduce bacteria. Avoid dependent loops in the tubing. Never rest the bag on the floor. 3. REMOVE THE CATHETER AS EARLY AS CLINICALLY POSSIBLE: Duration of catheterization is the single greatest risk factor for CAUTI. Daily reassess medical necessity and advocate for early removal per physician orders, as required by infection control standards under the Philippine DOH healthcare-associated infection prevention protocols.

Question Type

short_answer

Answer Structure

• Intervention 1: Maintain closed drainage system — rationale: prevents bacterial entry [1 mark]
• Intervention 2: Keep drainage bag below bladder level — rationale: prevents retrograde flow [1 mark]
• Intervention 3: Remove catheter ASAP — rationale: duration = greatest CAUTI risk factor [1 mark]

Scoring Breakdown

Common Mark Deductions

• Stating 'use gloves' as an intervention — this is basic standard precautions, not CAUTI-specific
• Listing catheter care without rationale — interventions without rationale earn partial marks
• Omitting the removal ASAP point — this is the highest-yield CAUTI intervention

Key Phrases To Include

• closed drainage system
• below the level of the bladder
• retrograde flow
• remove ASAP
• CAUTI
• duration of catheterization
• greatest risk factor

Marks

3

Topic

Principles of Dialysis

Difficulty

medium

Template Id

T9

Examiner Tip

A simple memory tool: DIFFUSION = Dissolves wastes (solutes from blood to dialysate); ULTRAFILTRATION = Unloads fluid (water removed by pressure). The examiner expects you to name the specific wastes (urea, creatinine, potassium) and explain WHY the dialysate works — because it has NONE of those substances, creating the gradient.

Model Answer

Dialysis operates on two fundamental physical principles: 1. DIFFUSION: Metabolic waste products — primarily urea (from protein catabolism), creatinine (from muscle metabolism), and excess electrolytes such as potassium — move across a semipermeable membrane from the BLOOD (area of HIGH concentration) to the DIALYSATE (area of LOW concentration). The dialysate is specially formulated with no urea, no creatinine, and low or no potassium, creating the concentration gradient necessary for diffusion. This is how toxins are cleared. 2. OSMOSIS/ULTRAFILTRATION: Excess fluid (water) is removed from the blood by creating an osmotic or hydrostatic pressure gradient across the semipermeable membrane. In peritoneal dialysis, a hypertonic dextrose dialysate draws fluid out osmotically. In hemodialysis, a mechanical pressure gradient (transmembrane pressure) drives ultrafiltration. This is how fluid overload is corrected.

Question Type

short_answer

Answer Structure

• Principle 1: Diffusion — solute movement from high to low concentration (blood to dialysate) [1.5 marks]
• Principle 2: Osmosis/Ultrafiltration — water removal by pressure/osmotic gradient [1.5 marks]

Scoring Breakdown

Common Mark Deductions

• Confusing diffusion with osmosis — diffusion is for SOLUTES, osmosis/UF is for WATER
• Not mentioning the concentration gradient direction (blood → dialysate)
• Omitting that dialysate is specifically formulated without urea/potassium — this is a key detail

Key Phrases To Include

• diffusion
• semipermeable membrane
• high to low concentration
• blood to dialysate
• osmosis
• ultrafiltration
• pressure gradient
• urea
• creatinine
• potassium-free dialysate

Marks

5

Topic

Nursing Process in Renal Care — Priority Diagnosis

Difficulty

hard

Template Id

T10

Examiner Tip

Five-mark case-study questions test ALL five nursing process components. Structure your answer with clear headings: Assessment, Nursing Diagnosis, Priority Justification, Interventions, and Evaluation (if applicable). The examiner awards one mark per section. Hyperkalemia ALWAYS takes priority over fluid volume issues in renal failure — commit this to memory. The NANDA format (3-part diagnosis) is mandatory for full marks.

Model Answer

ASSESSMENT ANALYSIS: The patient's data reveals multiple significant findings: (1) Hyperkalemia — serum potassium 6.8 mEq/L (normal: 3.5–5.0 mEq/L), a life-threatening elevation; (2) Elevated BUN (85 mg/dL; normal: 10–20 mg/dL) and creatinine (4.2 mg/dL; normal: 0.6–1.2 mg/dL), confirming severe impairment of renal waste excretion; (3) Fluid volume excess — a 3-kg weight gain in 3 days indicates approximately 3 liters of fluid retention (1 kg ≈ 1 L). PRIORITY NURSING DIAGNOSIS: Risk for Decreased Cardiac Output related to electrolyte imbalance (hyperkalemia) secondary to impaired renal excretion, as evidenced by serum potassium of 6.8 mEq/L. JUSTIFICATION — PRIORITY RATIONALE (Maslow's Hierarchy): Hyperkalemia (K⁺ 6.8 mEq/L) is the HIGHEST priority because it poses an IMMEDIATE life-threatening risk to cardiac rhythm and circulation — a physiologic (survival) need under Maslow's hierarchy. Severe hyperkalemia causes fatal cardiac dysrhythmias (peaked T-waves → widened QRS → ventricular fibrillation → cardiac arrest). This takes priority over fluid volume excess, which, while serious, does not carry the same immediate lethal risk as cardiac arrest from hyperkalemia. PRIORITY NURSING INTERVENTIONS: 1. Place patient on continuous cardiac monitoring (ECG) — immediately assess for hyperkalemia-induced dysrhythmias (peaked T-waves, widened QRS). 2. Notify physician of critical potassium level — anticipate orders for calcium gluconate (cardiac membrane stabilizer), sodium bicarbonate, or insulin + dextrose (to shift K⁺ intracellularly). 3. Restrict all potassium-containing foods and fluids — NPO if ordered. 4. Monitor urine output hourly — oliguria worsens hyperkalemia. 5. Prepare for possible emergency dialysis — definitive treatment for severe hyperkalemia in CKD. SECONDARY DIAGNOSIS: Excess Fluid Volume related to impaired renal excretion as evidenced by 3-kg weight gain in 3 days, peripheral edema, and elevated BUN/creatinine.

Question Type

case_study

Answer Structure

• Assessment analysis: interpret all abnormal values with normal ranges [1 mark]
• State complete NANDA nursing diagnosis with all 3 components (problem + related to + AEB) [1 mark]
• Justify priority using Maslow's hierarchy with specific rationale (hyperkalemia = cardiac arrest risk) [1 mark]
• List at least 3 specific priority nursing interventions with rationale [1 mark]
• Identify secondary nursing diagnosis [1 mark]

Scoring Breakdown

Common Mark Deductions

• Choosing Excess Fluid Volume as priority over hyperkalemia — fluid excess is serious but hyperkalemia has more immediate lethal cardiac implications
• Stating nursing diagnosis in incomplete format — missing 'related to' or 'as evidenced by' loses marks
• Failing to interpret laboratory values against normal ranges — listing numbers alone without interpretation earns partial marks
• Listing generic interventions like 'monitor patient' without specificity (what to monitor, why, how often)

Key Phrases To Include

• hyperkalemia
• 6.8 mEq/L
• life-threatening
• cardiac dysrhythmia
• Maslow's hierarchy
• physiologic need
• NANDA nursing diagnosis
• related to
• as evidenced by
• cardiac monitoring
• ECG
• continuous monitoring
• Excess Fluid Volume
• 1 kg = 1 L

Marks

5

Topic

Diagnostic Procedures — Post-Renal Biopsy Care

Difficulty

hard

Template Id

T11

Examiner Tip

The key clinical insight for this question is the distinction: pink-tinged urine AFTER renal biopsy is EXPECTED and normal — do not panic the patient. But BRIGHT RED urine, clots, or inability to void = EMERGENCY. The examiner is testing whether you know this clinical distinction. Always organize a 5-mark answer with clear numbered points — disorganized prose earns fewer marks than structured, numbered interventions.

Model Answer

POST-RENAL BIOPSY NURSING CARE A renal biopsy is an invasive procedure in which a needle is inserted percutaneously into the kidney to obtain a tissue sample for definitive diagnosis of glomerular diseases. The kidney is a HIGHLY VASCULAR organ, making HEMORRHAGE the most critical post-procedure complication and the PRIORITY nursing concern. PRIORITY CONCERN — RISK FOR BLEEDING/HEMORRHAGE: Rationale: The renal cortex has an extensive blood supply, and biopsy needle entry can cause arterial or venous injury. Life-threatening retroperitoneal hemorrhage can develop rapidly and may not be immediately visible externally. Therefore, monitoring for bleeding is the highest-priority (Maslow: circulation/physiologic safety). PRIORITY NURSING INTERVENTIONS: 1. BED REST: Enforce bed rest for at least 24 hours post-procedure — position the patient in supine or on the biopsy side for pressure. Early ambulation increases the risk of renal hemorrhage. 2. VITAL SIGNS MONITORING: Monitor blood pressure, heart rate, and respiratory rate frequently (every 15–30 minutes initially) — hypotension and tachycardia are early signs of significant internal bleeding. 3. URINE MONITORING: Inspect all urine for hematuria. Expect pink-tinged urine (microscopic hematuria) initially — this is NORMAL. Report BRIGHT RED urine, blood clots, or inability to void immediately to the physician. 4. FLANK PAIN ASSESSMENT: Assess for increasing or severe flank pain, which may indicate retroperitoneal hematoma formation. 5. COMPLETE BLOOD COUNT (CBC) MONITORING: Monitor hemoglobin and hematocrit for signs of blood loss; anticipate orders for serial blood draws. 6. ACTIVITY RESTRICTION: Instruct the patient to avoid strenuous physical activity, heavy lifting (>2 kg), and contact sports for approximately 2 weeks post-discharge. 7. FLUID INTAKE: Encourage adequate oral fluid intake post-procedure to maintain urine flow and facilitate flushing of blood from the urinary tract. COMPLICATION TO REPORT IMMEDIATELY: • Bright-red hematuria or passing blood clots • Sustained or worsening flank/back pain • Hypotension (systolic <90 mmHg) or tachycardia • Fever >38°C (suggests infection/hematoma formation) • Inability to void (possible clot obstruction) SECONDARY CONCERNS: Risk for Infection (sterile dressing care), Acute Pain (analgesic administration), and Knowledge Deficit regarding activity restrictions and signs of complications.

Question Type

long_answer

Answer Structure

• Introduction: identify renal biopsy purpose and why hemorrhage is the priority [1 mark]
• Physiologic rationale for hemorrhage risk (high vascularity, retroperitoneal location) [1 mark]
• List 4+ specific post-procedure nursing interventions with rationale [2 marks]
• State specific danger signs to report and secondary nursing concerns [1 mark]

Scoring Breakdown

Common Mark Deductions

• Failing to distinguish between expected hematuria (pink-tinged) and abnormal hematuria (bright red) — this distinction is a critical patient safety point
• Not specifying the duration of activity restriction (2 weeks)
• Omitting bed rest as a nursing intervention
• Generic answer without specific vital sign monitoring frequency

Key Phrases To Include

• highly vascular
• hemorrhage
• bed rest
• hematuria
• pink-tinged urine is normal
• bright red = report immediately
• flank pain
• vital signs monitoring
• no heavy lifting
• 2 weeks
• retroperitoneal hemorrhage

Marks

2

Topic

Renal Structure and Function — Erythropoietin

Difficulty

easy

Template Id

T12

Examiner Tip

This question tests your understanding of the kidney's hormonal (endocrine) function beyond just filtration. The critical high-yield point: dialysis removes wastes and fluids but does NOT replace hormones. Patients on dialysis still need EPO therapy, active vitamin D supplements, and phosphate binders — dialysis is not a complete kidney replacement.

Model Answer

The kidneys produce ERYTHROPOIETIN (EPO), a hormone that stimulates the bone marrow to produce red blood cells (erythropoiesis). In chronic kidney disease (CKD), the damaged kidney tissue loses its ability to produce adequate erythropoietin. This results in ANEMIA OF CHRONIC KIDNEY DISEASE — a normocytic, normochromic anemia characterized by fatigue, pallor, and dyspnea on exertion. Note: dialysis does NOT correct this hormonal deficiency — patients require exogenous recombinant erythropoietin (e.g., epoetin alfa) as part of CKD management.

Question Type

short_answer

Answer Structure

• Explain kidney's role: produces erythropoietin → stimulates RBC production in bone marrow [1 mark]
• Clinical consequence in CKD: loss of EPO → anemia (pallor, fatigue) [1 mark]

Scoring Breakdown

Common Mark Deductions

• Stating that the kidney 'makes red blood cells directly' — the kidney makes EPO, which signals the MARROW to make RBCs
• Not mentioning that dialysis does NOT fix EPO deficiency — a high-yield distinction
• Omitting clinical manifestations of anemia

Key Phrases To Include

• erythropoietin
• bone marrow
• red blood cell production
• anemia
• CKD
• dialysis does not correct
• pallor
• fatigue

Marks

1

Topic

Nursing Assessment — Fluid Balance Monitoring

Difficulty

easy

Template Id

T13

Examiner Tip

This is a frequently tested 1-mark recall question. The NLE distinguishes between daily weight (most reliable) and I&O monitoring (also important but less accurate due to insensible losses). Always include the 1 kg = 1 L conversion — it is the mathematical principle that makes the answer clinically complete.

Model Answer

The most reliable clinical indicator of fluid balance status is DAILY BODY WEIGHT measured at the same time each day, using the same scale, with the same clothing. The conversion principle is: 1 kilogram of weight change = approximately 1 liter of fluid gain or loss.

Question Type

very_short_answer

Answer Structure

• State: daily weight = most reliable indicator [0.5 mark]
• State the conversion factor: 1 kg = 1 L of fluid [0.5 mark]

Scoring Breakdown

Common Mark Deductions

• Answering 'intake and output (I&O)' — I&O is important but DAILY WEIGHT is stated as the single most reliable indicator
• Omitting the 1 kg = 1 L conversion factor
• Not specifying standardization conditions (same time, same scale, same clothing)

Key Phrases To Include

• daily body weight
• most reliable
• 1 kg = 1 L of fluid
• same time
• same scale

Marks

3

Topic

Urinalysis — UTI Findings

Difficulty

medium

Template Id

T14

Examiner Tip

Remember the UTI triad on urinalysis: Leukocyte esterase (+) + Nitrites (+) + WBCs on microscopy. These three are the gold-standard urinalysis signs. Also remember: culture and sensitivity (C&S) must be obtained BEFORE starting antibiotics — this is a nursing priority that the NLE tests in conjunction with UTI management.

Model Answer

A routine urinalysis reveals the following findings consistent with urinary tract infection (UTI): 1. POSITIVE LEUKOCYTE ESTERASE: This enzyme is released by white blood cells (WBCs/leukocytes). A positive result indicates the presence of WBCs in the urine (pyuria), which is a hallmark of bacterial infection in the urinary tract. 2. POSITIVE NITRITES: Most uropathogenic bacteria (especially gram-negative bacteria like Escherichia coli, the most common UTI pathogen) convert urinary nitrates to NITRITES. A positive nitrite test strongly suggests bacterial infection. 3. PRESENCE OF WBC CASTS OR WBCs ON MICROSCOPY: WBC casts in urine indicate upper urinary tract infection (pyelonephritis — infection of the kidney parenchyma), while free WBCs without casts suggest lower UTI (cystitis). The urine may also appear cloudy and have a foul or ammonia-like odor.

Question Type

short_answer

Answer Structure

• Component 1: Positive leukocyte esterase — presence of WBCs (pyuria) [1 mark]
• Component 2: Positive nitrites — bacterial conversion of nitrates [1 mark]
• Component 3: WBC casts or WBCs on microscopy — with clinical significance (pyelonephritis vs. cystitis) [1 mark]

Scoring Breakdown

Common Mark Deductions

• Listing 'cloudy urine' as a primary urinalysis component — this is a gross observation, not a specific urinalysis test parameter
• Confusing RBC casts (glomerulonephritis) with WBC casts (pyelonephritis)
• Not explaining WHY nitrites appear (bacterial conversion) — without the mechanism, the answer earns partial marks

Key Phrases To Include

• leukocyte esterase
• positive
• nitrites
• WBC casts
• pyuria
• pyelonephritis
• bacteria
• gram-negative
• E. coli

Marks

5

Topic

Urinary Catheterization — Safe Insertion and CAUTI Prevention

Difficulty

hard

Template Id

T15

Examiner Tip

Five-mark procedure questions are awarded mark by mark in phases: pre, during (technique), during (safety step), post-immediate, and ongoing care. A common student error is spending 4 paragraphs on the insertion steps and neglecting post-procedure CAUTI prevention — which earns 2 of the 5 marks. Divide your answer time evenly across all phases. For males, the insertion distance (17–22 cm) and the perpendicular penis position are two often-missed technical details that separate a 4-mark from a 5-mark answer.

Model Answer

SAFE INDWELLING URINARY CATHETERIZATION — MALE PATIENT Indication and Principle: Urinary catheterization must be performed using STRICT STERILE (ASEPTIC) TECHNIQUE to prevent CAUTI — the most common healthcare-associated infection. Per RA 9173 (Philippine Nursing Act), the nurse is accountable for safe, competent, and evidence-based nursing practice. PRE-PROCEDURE: 1. VERIFY INDICATION AND PHYSICIAN ORDER: Confirm valid clinical indication (e.g., urinary retention, accurate I&O monitoring) and physician order. Unnecessary catheterization is a primary risk factor for CAUTI. 2. PATIENT EDUCATION AND CONSENT: Explain the procedure to the patient — purpose, steps, and expected sensations (pressure, urge to void). Obtain informed consent per hospital policy. 3. GATHER AND PREPARE STERILE EQUIPMENT: Correct catheter size (14–18 Fr for adults), sterile gloves, sterile drapes, antiseptic solution (povidone-iodine), sterile lubricant, and closed drainage bag. 4. HAND HYGIENE: Perform proper 6-step hand hygiene before sterile gloving. DURING PROCEDURE (STERILE TECHNIQUE): 5. POSITION: Place patient in supine position; drape for privacy and sterile field. 6. CLEANSING (MALE): Retract foreskin (if uncircumcised); cleanse the urethral meatus using antiseptic solution with a circular motion from the meatus outward — using each swab ONCE only, preventing introduction of organisms. 7. LUBRICATE: Apply generous sterile lubricant to the first 15–20 cm of the catheter (longer for males due to longer urethra). 8. INSERT: Lift the penis perpendicular (90°) to the body to straighten the urethra. Insert catheter gently 17–22 cm (until urine returns), then advance 2–3 cm more before inflating the balloon. NEVER FORCE the catheter against resistance (risk of urethral trauma or false passage). 9. INFLATE BALLOON: Inflate balloon only after confirming urine return (confirms placement in bladder). Use the specified volume (usually 10 mL sterile water) as labeled. 10. SECURE TUBING: Secure the catheter to the inner thigh using a catheter securement device to prevent traction/trauma. POST-PROCEDURE CAUTI PREVENTION: 11. MAINTAIN CLOSED SYSTEM: Connect to closed drainage bag — never open the system. 12. KEEP BAG BELOW BLADDER: Position drainage bag below the level of the bladder at all times; avoid dependent tubing loops. 13. DOCUMENT: Record the date/time of insertion, catheter size, urine color/characteristics, and volume of initial urine output. 14. REASSESS DAILY: Assess and document continued medical necessity daily — REMOVE THE CATHETER AS SOON AS NO LONGER CLINICALLY INDICATED. KEY CAUTI PREVENTION PRINCIPLES: • Sterile insertion technique • Closed drainage system • Bag below bladder level • Secure tubing • Regular perineal care • Early removal

Question Type

long_answer

Answer Structure

• Pre-procedure steps: verification, consent, equipment, hand hygiene [1 mark]
• Sterile insertion steps: cleansing technique, lubrication, correct insertion distance for males [1 mark]
• Correct balloon inflation protocol: only after urine return [1 mark]
• Post-procedure CAUTI prevention: closed system, bag position, securing [1 mark]
• Documentation and daily reassessment for early removal [1 mark]

Scoring Breakdown

Common Mark Deductions

• Inflating the balloon before confirming urine return — this is a critical clinical safety error
• Not specifying the correct insertion distance for males (17–22 cm) vs. females (5–7 cm)
• Omitting the balloon inflation step or the closed system maintenance
• Not mentioning daily reassessment and early removal — this is the highest-yield CAUTI prevention strategy

Key Phrases To Include

• sterile technique
• closed drainage system
• below bladder level
• never force
• urine return before balloon inflation
• meatus outward
• 17–22 cm
• CAUTI prevention
• daily reassessment
• remove ASAP
• perpendicular 90 degrees