ATI RN
ATI Proctored Pharmacology Test
1. A client has a new prescription for a combination of oral NRTIs (abacavir, lamivudine, and zidovudine) for the treatment of HIV. Which of the following statements should the nurse include in teaching the client?
- A. These medications work by blocking HIV entry into cells.
- B. These medications work by weakening the cell wall of the HIV virus.
- C. These medications work by inhibiting enzymes to prevent HIV replication.
- D. These medications work by preventing protein synthesis within the HIV cell.
Correct answer: C
Rationale: The NRTI antiretroviral medications this client is prescribed work by inhibiting the enzyme reverse transcriptase, thus preventing HIV replication. By inhibiting this crucial enzyme, the drug interferes with the virus's ability to replicate and spread in the body. Choice A is incorrect because NRTIs do not block HIV entry into cells. Choice B is incorrect as NRTIs do not weaken the cell wall of the virus. Choice D is incorrect as NRTIs do not prevent protein synthesis within the HIV cell.
2. When administering IV Acyclovir to a client with Varicella, what action should the nurse take?
- A. Administer a stool softener
- B. Decrease fluid intake following infusion
- C. Infuse Acyclovir over 1 hr
- D. Monitor for hypotension
Correct answer: C
Rationale: When administering IV Acyclovir to a client with Varicella, the nurse should infuse the medication over at least 1 hour to prevent nephrotoxicity. Rapid infusion can lead to adverse effects such as renal damage. Therefore, it is crucial to follow the recommended infusion rate to ensure the client's safety and well-being. Choice A is incorrect as stool softeners are not indicated in this situation. Choice B is incorrect because fluid intake should be maintained or increased to prevent dehydration and support kidney function. Choice D is incorrect as monitoring for hypotension is not specifically related to the administration of IV Acyclovir in Varicella.
3. Which drug class has been found to decrease mortality if given within 8 hours of an MI due to a decrease in cardiac workload?
- A. Antiplatelets
- B. Beta-adrenergic blockers
- C. ACE inhibitors
- D. Calcium channel blockers
Correct answer: B
Rationale: Beta-adrenergic blockers have been shown to decrease mortality when administered within 8 hours of a myocardial infarction (MI). They do so by reducing cardiac workload, which helps improve outcomes post-MI. These drugs work by blocking the effects of adrenaline on the heart, leading to decreased heart rate, blood pressure, and myocardial oxygen demand, thereby protecting the heart muscle from further damage. This makes them a crucial part of the treatment regimen for acute coronary syndromes like MI.
4. A client is prescribed Amlodipine. Which of the following adverse effects should the nurse monitor?
- A. Tachycardia
- B. Peripheral edema
- C. Hyperglycemia
- D. Hypertension
Correct answer: B
Rationale: Corrected Rationale: Amlodipine is a calcium channel blocker known to cause peripheral edema as an adverse effect. The nurse should monitor the client for swelling, particularly in the lower extremities, as it can indicate the development of this side effect. Choice A, Tachycardia, is not a common adverse effect of Amlodipine. Choice C, Hyperglycemia, is not typically associated with Amlodipine use. Choice D, Hypertension, is the condition Amlodipine is prescribed to treat, not an adverse effect of the medication.
5. A client is being discharged with a new prescription for Lisinopril. Which of the following instructions should be included by the healthcare provider?
- A. Avoid salt substitutes.
- B. Take this medication at bedtime.
- C. Increase your intake of potassium-rich foods.
- D. Take this medication with food.
Correct answer: A
Rationale: The correct answer is to instruct the client to avoid salt substitutes. Lisinopril, an ACE inhibitor, can lead to hyperkalemia, so it's essential to avoid salt substitutes that may contain potassium which can further elevate potassium levels. Choice B is incorrect because Lisinopril is typically taken once daily in the morning, not at bedtime. Choice C is incorrect as increasing potassium intake can exacerbate hyperkalemia when taking Lisinopril. Choice D is incorrect as Lisinopril is usually taken on an empty stomach, not with food.
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