ATI LPN
ATI LPN Pharmacology Exam Questions
Question 1 of 5
A nurse is preparing to administer acetaminophen 10/mg/kg PO to a preschool child for fever. The child weighs 22 lb . Available is acetaminophen liquid 160mg/5 mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
Correct Answer: C
Rationale: Weight = 22 lb × 0.453592 = 9.98 kg. Dose = 10 mg/kg × 9.98 kg = 99.8 mg. Volume = 99.8 mg × (5 mL / 160 mg) = 3.12 mL, rounded to 3.1 mL.
Question 2 of 5
Using abbreviations and the rules of the metric system, express the following quantities correctly: Six hundredth:
Correct Answer: B
Rationale: Six hundredths = 0.06 g in metric notation.
Question 3 of 5
Which factors may affect drug absorption? (SELECT ALL THAT APPLY)
Correct Answer: A,B,C,E
Rationale: A: Affects absorption speed. B: Enhances permeability. C: Impacts solubility. E: Alters absorption rate. D relates to inhalation, not general absorption.
Question 4 of 5
Which product is the antidote for digitalis toxicity?
Correct Answer: D
Rationale: Digoxin immune fab binds digoxin to reverse toxicity.
Question 5 of 5
Calculate the flow rate I mL/hr. and Units/hr. (Equipment used is programmable in whole mL/hr and Show all work) Order: 25,000 units of Heparin in 250 mL to infuse at 11 mL/hr. Calculate rate in units/hr.
Correct Answer: D
Rationale: Concentration = 25,000 units / 250 mL = 100 units/mL. Units/hr = 11 mL/hr × 100 units/mL = 1100 units/hr.