a nurse is reviewing the medical history of a client who is scheduled for surgery and takes warfarin daily which of the following laboratory results s
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Nursing Elites

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ATI Pharmacology Test Bank

1. A healthcare provider is reviewing the medical history of a client who is scheduled for surgery and takes Warfarin daily. Which of the following laboratory results should the healthcare provider monitor?

Correct answer: B

Rationale: The INR (International Normalized Ratio) is the most important lab value to monitor in a client taking warfarin. Warfarin is an anticoagulant, and the INR reflects the effectiveness of anticoagulation therapy. Monitoring the INR helps ensure the client is within the therapeutic range to prevent both clotting and bleeding complications.

2. A client has a new prescription for Warfarin. The nurse should identify that the concurrent use of which of the following medications increases the client's risk of bleeding?

Correct answer: C

Rationale: The correct answer is Acetaminophen (Choice C). Acetaminophen, especially in high doses, can increase the risk of bleeding in clients taking Warfarin. It can potentiate the anticoagulant effect of Warfarin, leading to an increased risk of bleeding. Vitamin K (Choice A) is actually used to reverse the effects of Warfarin in case of over-anticoagulation, so it does not increase the risk of bleeding. Calcium carbonate (Choice B) and Ranitidine (Choice D) do not significantly interact with Warfarin to increase the risk of bleeding.

3. When does regular insulin typically peak?

Correct answer: D

Rationale: Regular insulin usually peaks around 1 to 5 hours after administration. This peak time frame is important to consider when managing blood glucose levels and timing meals to coincide with insulin activity. Choice A, '30 minutes to 2 ½ hours,' is incorrect because regular insulin typically peaks later. Choice B, '1 to 3 hours,' is not the most accurate as the peak for regular insulin can extend beyond 3 hours. Choice C, '6 to 14 hours,' is incorrect as this timeframe is more indicative of long-acting insulins, not regular insulin.

4. A client with OCD has a new prescription for Paroxetine. Which of the following instructions should the nurse include?

Correct answer: A

Rationale: The correct instruction for the nurse to include when teaching a client with OCD who has a new prescription for Paroxetine is that it can take several weeks before the client feels like the medication is helping. Paroxetine, like other selective serotonin reuptake inhibitors (SSRIs), can take 1 to 4 weeks before the client reaches the full therapeutic benefit. Therefore, it is important to inform the client about this delay in onset of action to manage their expectations and promote adherence to the treatment plan. Choices B, C, and D are incorrect because taking Paroxetine before bedtime is not necessary, it should be taken consistently at the same time each day; Paroxetine is usually taken regularly, not as needed; and while monitoring weight is important, it is not a specific instruction related to the onset of action for Paroxetine.

5. Which of the following conditions are not treated with Barbiturates?

Correct answer: B

Rationale: Hypotension is not treated with barbiturates. Barbiturates are primarily used for treating seizures, insomnia, and anxiety, but they are not indicated for the treatment of hypotension.

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