ESTUDYR
APPROACH TO PEDIATRIC PRESCRIBING IN NUR 6130 MOST TESTED
QUESTIONS AND ANSWERS GRADED A+ WITH RATIONALES
Approach to Pediatric Prescribing — NUR 6130
Intensive MCQ bank (21 questions) — answers highlighted + rationales
1. In pediatric prescribing, the single most important piece of data for calculating a patient-specific dose
is:
a) Chronological age in years
b) Body surface area (BSA) only
c) Current weight in kilograms (kg) ✅
d) Height in centimeters
Rationale: Pediatric dosing is most commonly calculated on a mg/kg basis. Weight in kg is required to
compute accurate, individualized doses. Age and BSA may be useful for some agents but weight (kg) is
the primary starting point.
2. Compounding a medication formulation for a child is MOST appropriate when:
a) A suitable, commercially available pediatric formulation exists
b) No appropriate commercial product (strength/route/palatability) is available ✅
c) The parent requests a “custom” color for the medicine
d) A drug is off-patent
Rationale: Compounding is indicated when an age-appropriate formulation (e.g., liquid suspension,
flavored concentrate) is not commercially available or when dose strengths needed for children cannot
be achieved with manufactured products. Safety, stability, and pharmacist oversight are required.
3. Children are at increased risk for medication errors because they:
a) Have the same pharmacokinetics as adults
b) Always tolerate larger doses better than adults
c) Have age-dependent differences in absorption, distribution, metabolism, and excretion ✅
d) Require only once-daily dosing to avoid toxicity
Rationale: Pediatric pharmacokinetics vary by age and maturity of liver/renal function, body
composition (higher water:fat ratio), and enzymatic pathways — all of which increase vulnerability to
dosing errors.
, ESTUDYR
4. The MOST common calculation error causing pediatric overdoses is:
a) Using mg/kg instead of mg/m²
b) Failure to convert pounds to kilograms correctly ✅
c) Rounding to the nearest whole tablet
d) Using adult creatinine clearance equations
Rationale: A frequent and dangerous error is using a weight reported in pounds as though it were
kilograms or failing to convert lb → kg (1 kg = 2.20462 lb). Always confirm weight in kg on every pediatric
prescription.
5. The notation mg/kg/24 hr indicates:
a) Milligrams per kilogram per single dose
b) Total daily dose (mg) per kg, given over a 24-hour period ✅
c) Dosage per body surface area
d) Concentration of drug in mg per mL
Rationale: mg/kg/24 hr expresses the total daily dose normalized to weight. This total is then divided
into the dosing schedule (q8h, q12h, etc.) as appropriate.
6. Amoxicillin for acute otitis or many pediatric infections is often dosed 80–90 mg/kg/day divided
q12h. For a 15-kg child, the correct per-dose amount q12h is:
a) 300 mg every 12 hours
b) 600–675 mg every 12 hours ✅
c) 100–150 mg every 12 hours
d) 900–1000 mg every 12 hours
Rationale / math:
• Lower range: 80 mg/kg/day × 15 kg = 1,200 mg/day → ÷2 = 600 mg q12h.
• Upper range: 90 mg/kg/day × 15 kg = 1,350 mg/day → ÷2 = 675 mg q12h.
Round to practical dosing strengths and confirm max single-dose and formulation available.
7. A classic “ten-fold” dosing error is most often caused by:
a) Writing “0.1” instead of “.10”
b) Using a trailing zero (e.g., writing 1.0 mg) ✅
c) Writing doses in mL instead of mg
d) Using an oral syringe
Rationale: Trailing zeros (e.g., “1.0 mg”) can be misread as 10 mg. Best practice: never use trailing
zeros; use leading zeros for decimals (e.g., 0.1 mg) to prevent ten-fold errors.
APPROACH TO PEDIATRIC PRESCRIBING IN NUR 6130 MOST TESTED
QUESTIONS AND ANSWERS GRADED A+ WITH RATIONALES
Approach to Pediatric Prescribing — NUR 6130
Intensive MCQ bank (21 questions) — answers highlighted + rationales
1. In pediatric prescribing, the single most important piece of data for calculating a patient-specific dose
is:
a) Chronological age in years
b) Body surface area (BSA) only
c) Current weight in kilograms (kg) ✅
d) Height in centimeters
Rationale: Pediatric dosing is most commonly calculated on a mg/kg basis. Weight in kg is required to
compute accurate, individualized doses. Age and BSA may be useful for some agents but weight (kg) is
the primary starting point.
2. Compounding a medication formulation for a child is MOST appropriate when:
a) A suitable, commercially available pediatric formulation exists
b) No appropriate commercial product (strength/route/palatability) is available ✅
c) The parent requests a “custom” color for the medicine
d) A drug is off-patent
Rationale: Compounding is indicated when an age-appropriate formulation (e.g., liquid suspension,
flavored concentrate) is not commercially available or when dose strengths needed for children cannot
be achieved with manufactured products. Safety, stability, and pharmacist oversight are required.
3. Children are at increased risk for medication errors because they:
a) Have the same pharmacokinetics as adults
b) Always tolerate larger doses better than adults
c) Have age-dependent differences in absorption, distribution, metabolism, and excretion ✅
d) Require only once-daily dosing to avoid toxicity
Rationale: Pediatric pharmacokinetics vary by age and maturity of liver/renal function, body
composition (higher water:fat ratio), and enzymatic pathways — all of which increase vulnerability to
dosing errors.
, ESTUDYR
4. The MOST common calculation error causing pediatric overdoses is:
a) Using mg/kg instead of mg/m²
b) Failure to convert pounds to kilograms correctly ✅
c) Rounding to the nearest whole tablet
d) Using adult creatinine clearance equations
Rationale: A frequent and dangerous error is using a weight reported in pounds as though it were
kilograms or failing to convert lb → kg (1 kg = 2.20462 lb). Always confirm weight in kg on every pediatric
prescription.
5. The notation mg/kg/24 hr indicates:
a) Milligrams per kilogram per single dose
b) Total daily dose (mg) per kg, given over a 24-hour period ✅
c) Dosage per body surface area
d) Concentration of drug in mg per mL
Rationale: mg/kg/24 hr expresses the total daily dose normalized to weight. This total is then divided
into the dosing schedule (q8h, q12h, etc.) as appropriate.
6. Amoxicillin for acute otitis or many pediatric infections is often dosed 80–90 mg/kg/day divided
q12h. For a 15-kg child, the correct per-dose amount q12h is:
a) 300 mg every 12 hours
b) 600–675 mg every 12 hours ✅
c) 100–150 mg every 12 hours
d) 900–1000 mg every 12 hours
Rationale / math:
• Lower range: 80 mg/kg/day × 15 kg = 1,200 mg/day → ÷2 = 600 mg q12h.
• Upper range: 90 mg/kg/day × 15 kg = 1,350 mg/day → ÷2 = 675 mg q12h.
Round to practical dosing strengths and confirm max single-dose and formulation available.
7. A classic “ten-fold” dosing error is most often caused by:
a) Writing “0.1” instead of “.10”
b) Using a trailing zero (e.g., writing 1.0 mg) ✅
c) Writing doses in mL instead of mg
d) Using an oral syringe
Rationale: Trailing zeros (e.g., “1.0 mg”) can be misread as 10 mg. Best practice: never use trailing
zeros; use leading zeros for decimals (e.g., 0.1 mg) to prevent ten-fold errors.
