ATI LPN
ATI LPN Pharmacology Exam Questions
Extract:
Question 1 of 5
A nurse is preparing to administer amoxicillin 300 mg PO. The amount lable is amoxicillin oral solution 250 mg/5 mL. How many mL should the nurse administer? (Hound the answer to the nearest tenth/whole number. Use a leading zero if it applies. Do not use a trailing zero.)
Correct Answer: B
Rationale: Volume = 300 mg × (5 mL / 250 mg) = 6 mL.
Question 2 of 5
Which product is the antidote for digitalis toxicity?
Correct Answer: D
Rationale: Digoxin immune fab binds digoxin to reverse toxicity.
Question 3 of 5
Order: 1 liter or 1000 mL of D5W to infuse over 6 hours Available: Macrodrip set: 10 gtt/mL The IV flow rate would be ______gtt/min.
Correct Answer: A
Rationale: Flow rate = (1000 mL / 6 hr × 10 gtt/mL) / 60 = 27.78 gtt/min, rounded to 28 gtt/min.
Question 4 of 5
Order: diphenhydramine 25 mg PO q6h, PRN Available: diphenhydramine 12.5 mg/5 mL. How many mL would the nurse give?
Correct Answer: D
Rationale: Volume = 25 mg × (5 mL / 12.5 mg) = 10 mL.
Question 5 of 5
A nurse is preparing to administer phenobarbital 6 mg/kg/day PO divided in equal doses every 12 hr to a client who weighs 44 lbs. Available is phenobarbital elixir 20 mg/5ml. The nurse should administer how many mL per dose? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use trailing zeros.
Correct Answer: B
Rationale: Weight = 44 lb × 0.453592 = 19.96 kg. Daily dose = 6 mg/kg/day × 19.96 kg = 119.76 mg. Per dose = 119.76 / 2 = 59.88 mg. Volume = 59.88 × (5 mL / 20 mg) = 14.97 mL, rounded to 15 mL.