ATI LPN
ATI LPN Pharmacology Exam Questions
Extract:
Question 1 of 5
A nurse is preparing to administer amoxicillin 30 mg/kg/day divided doses every 12 hr to a toddler who weighs 33 lb. Available is amoxicillin 200 mg/5 mL suspension. How many mL should the nurse administer every 12 hr? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
Correct Answer: B
Rationale: Weight = 33 lb × 0.453592 = 14.97 kg. Daily dose = 30 mg/kg/day × 14.97 kg = 449.1 mg. Per dose = 449.1 / 2 = 224.55 mg. Volume = 224.55 × (5 mL / 200 mg) = 5.61 mL, rounded to 5.6 mL.
Question 2 of 5
A nurse is preparing to administer clindamycin palmitate 225 mg PO to a client. Available iS clindamycin palmitate oral suspension 75 mg/5 mL. How many mL should the nurse administer? (Round to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
Correct Answer: D
Rationale: Volume = 225 mg × (5 mL / 75 mg) = 15 mL.
Question 3 of 5
A nurse is assisting in preparing an in-service program about preventing medication errors when transcribing a prescription. The nurse is using a dosage example of two tenths of a milligram. Which of the following transcription examples should the nurse use?
Correct Answer: A
Rationale: 0.2 mg uses a leading zero, avoiding errors per ISMP guidelines.
Question 4 of 5
A client who is taking digoxin asks the nurse if they can take an antacid for heartburn. What is the nurse's best response?
Correct Answer: C
Rationale: Antacids reduce digoxin absorption; spacing by 2 hours prevents interaction.
Question 5 of 5
A nurse is preparing to administer 0.9% sodium chloride (NS) 100 mL/V to infuse over 4 hr. The drip factor of the manual IV tubing is 60 gtt/mL. The nurse should set the manual IV infusion to deliver how many gtt/min? (Round the answer to the nearest whole number.)
Correct Answer: B
Rationale: Flow rate = (100 mL / 4 hr × 60 gtt/mL) / 60 = 25 gtt/min.