ATI RN
ATI Pharmacology Proctored Exam
1. A child is prescribed Amoxicillin 20 mg/kg/day PO to be administered every 12 hr. The child weighs 44 lb. The available medication is amoxicillin suspension 250 mg/5 mL. How many mL should be given per dose?
- A. 4 mL
- B. 5 mL
- C. 6 mL
- D. 3 mL
Correct answer: A
Rationale: To calculate the dosage per administration: Convert the weight to kg (44 lb / 2.2 lb/kg = 20 kg). Then, (20 mg/kg/day x 20 kg) / 2 (for every 12 hr dosing) = 200 mg per dose. (200 mg / 250 mg) x 5 mL = 4 mL per dose. Therefore, the nurse should administer 4 mL of amoxicillin suspension per dose. Choice B, 5 mL, is incorrect because the calculation shows that 4 mL is the correct dose. Choices C and D are also incorrect as they are not in line with the calculated dosage based on the weight of the child and the concentration of the medication.
2. A healthcare professional is providing discharge instructions to a client who has a new prescription for Furosemide. Which of the following instructions should the healthcare professional include?
- A. Take the medication with breakfast.
- B. Increase intake of foods high in potassium.
- C. Avoid prolonged sun exposure.
- D. Limit sodium intake.
Correct answer: B
Rationale: The correct answer is B: 'Increase intake of foods high in potassium.' Furosemide, a loop diuretic, can cause potassium depletion. The healthcare professional should instruct the client to increase the intake of foods high in potassium to prevent hypokalemia, a potential side effect of Furosemide therapy. Choice A is incorrect as Furosemide is usually recommended to be taken in the morning to prevent nocturia. Choice C is unrelated to the side effects of Furosemide. Choice D, while important for overall health, is not directly related to the side effects of Furosemide.
3. When teaching a client with a prescription for Vancomycin, which instruction should the nurse include?
- A. Expect red man syndrome during treatment.
- B. Take the medication with a full glass of water.
- C. Increase your intake of potassium-rich foods.
- D. Monitor for hearing loss while taking this medication.
Correct answer: D
Rationale: The correct answer is D. Vancomycin is known to cause ototoxicity, which can result in hearing loss. Therefore, it is important for clients to monitor for any changes in their hearing while taking this medication and promptly report any issues to their healthcare provider for further evaluation and management. Choices A, B, and C are incorrect because red man syndrome is associated with rapid infusion of Vancomycin, not a common side effect during treatment; taking the medication with a full glass of water is a general instruction for many medications but not specific to Vancomycin; and increasing potassium-rich foods is not directly related to Vancomycin therapy.
4. What is the antidote for Heparin?
- A. Atropine
- B. Protamine sulfate
- C. Calcium carbonate
- D. Ferrous sulfate
Correct answer: B
Rationale: Protamine sulfate is the specific antidote used to reverse the effects of Heparin by binding to heparin and neutralizing its anticoagulant properties. It is crucial to administer Protamine sulfate promptly in cases of Heparin overdose or when immediate reversal of Heparin's effects is required to prevent bleeding complications. Atropine is not the antidote for Heparin; it is commonly used for treating bradycardia. Calcium carbonate is used to treat conditions like acid indigestion, heartburn, or calcium deficiency. Ferrous sulfate is a form of iron supplement used to treat or prevent iron deficiency anemia. None of these alternatives are antidotes for Heparin.
5. When educating a client starting a new prescription for simvastatin, which instruction should the nurse provide?
- A. Take the medication in the morning.
- B. Report any muscle pain immediately.
- C. Avoid taking the medication with grapefruit juice.
- D. Take the medication at bedtime.
Correct answer: B
Rationale: The correct instruction for a client starting simvastatin is to report any muscle pain immediately because it could be indicative of rhabdomyolysis, a serious side effect of the medication. This prompt reporting can help prevent further complications and ensure timely medical intervention. Choice A is incorrect because simvastatin can be taken at any time of the day. Choice C is generally true for many medications, but there is no specific interaction between grapefruit juice and simvastatin. Choice D is also incorrect as there is no specific recommendation to take simvastatin at bedtime.
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