ATI RN
ATI Pharmacology Proctored Exam 2024
1. When should a patient taking omeprazole be administered the medication?
- A. Before bedtime
- B. After dinner
- C. In the morning on an empty stomach
- D. With the patient's lunch meal
Correct answer: C
Rationale: Omeprazole should be administered in the morning on an empty stomach to maximize its effectiveness. This timing is important as omeprazole works best when taken before a meal to inhibit acid production by the stomach. Taking it on an empty stomach in the morning allows the medication to be absorbed efficiently and provides optimal therapeutic effects throughout the day. Choices A, B, and D are incorrect because taking omeprazole before bedtime, after dinner, or with lunch may not allow the medication to work effectively as it requires an empty stomach for better absorption and action.
2. A client is prescribed levothyroxine for hypothyroidism. Which of the following findings should indicate to the nurse that the medication is effective?
- A. Decreased heart rate
- B. Increased energy levels
- C. Weight loss
- D. Improved mental clarity
Correct answer: B
Rationale: Increased energy levels are a key indicator of the effectiveness of levothyroxine in treating hypothyroidism. Levothyroxine works to regulate thyroid hormone levels, which can lead to improved energy levels as the body's metabolism is restored. While the other options may also improve with treatment, increased energy levels directly reflect the correction of the thyroid hormone imbalance. Decreased heart rate can be an indicator of overmedication, weight loss can be attributed to increased metabolism but may not directly reflect the effectiveness of levothyroxine, and improved mental clarity is a more general cognitive improvement that may not directly relate to thyroid function.
3. 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.
4. What is the antidote for Warfarin?
- A. Vitamin D
- B. Vitamin C
- C. Vitamin K
- D. Vitamin B6
Correct answer: C
Rationale: Vitamin K is the antidote for Warfarin toxicity as it helps reverse the anticoagulant effects of Warfarin. Warfarin works by inhibiting vitamin K-dependent clotting factors, and administering vitamin K can replenish these factors, thereby counteracting the anticoagulant effects of Warfarin. Vitamin D, Vitamin C, and Vitamin B6 do not have the specific mechanism to counteract the anticoagulant effects of Warfarin, making them incorrect choices.
5. A client has a prescription for Levothyroxine. Which of the following instructions should the nurse include?
- A. Take this medication on an empty stomach.
- B. Take this medication with food.
- C. Take this medication at bedtime.
- D. Take this medication with antacids.
Correct answer: A
Rationale: Levothyroxine should be taken on an empty stomach to increase absorption and efficacy. Taking it with food or antacids can interfere with its absorption, leading to reduced effectiveness of the medication.
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