which of the following lab values indicates a patient on warfarin is at a therapeutic level
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Nursing Elites

ATI RN

ATI RN Comprehensive Exit Exam

1. Which of the following lab values indicates a patient on warfarin is at a therapeutic level?

Correct answer: C

Rationale: An INR of 2.5 indicates a therapeutic level for a patient on warfarin. The INR (International Normalized Ratio) is the most accurate way to monitor and adjust warfarin doses. An INR of 1.1 (Choice A) is below the therapeutic range, indicating a need for an increased dose. PT (Prothrombin Time) of 12 seconds (Choice B) is not specific for warfarin therapy monitoring. Platelet count (Choice D) is not directly related to monitoring warfarin therapy.

2. What is the most important intervention for a patient with suspected DVT?

Correct answer: A

Rationale: The correct answer is to administer anticoagulants. Administering anticoagulants is crucial in the management of deep vein thrombosis (DVT) as it helps prevent the clot from growing larger or dislodging, potentially causing a life-threatening pulmonary embolism. While monitoring oxygen levels, applying compression stockings, and encouraging ambulation are important aspects of DVT management, administering anticoagulants is the most critical intervention to prevent further complications.

3. A nurse is caring for a client who has an indwelling urinary catheter. Which of the following interventions should the nurse implement to prevent catheter-associated infections?

Correct answer: B

Rationale: The correct answer is to ensure the drainage bag is positioned above the bladder. This positioning prevents urine reflux into the bladder, reducing the risk of catheter-associated infections. Changing the catheter too frequently (Choice A) can actually increase the risk of infection by introducing pathogens. Performing routine catheter irrigation (Choice C) is no longer recommended as it can increase the risk of infection by introducing bacteria. Emptying the drainage bag every 4 hours (Choice D) is a standard practice to prevent urinary stasis but is not directly related to preventing catheter-associated infections.

4. A nurse is caring for a client who has acute pancreatitis. Which of the following laboratory results should the nurse expect to be elevated?

Correct answer: B

Rationale: The correct answer is B: Amylase. Amylase is typically elevated in clients with acute pancreatitis due to inflammation of the pancreas. Elevated serum creatinine levels are more indicative of kidney dysfunction rather than pancreatitis. Hemoglobin levels are not directly related to pancreatitis. While blood glucose levels can be affected by pancreatitis, they are not typically the primary laboratory result expected to be elevated in this condition.

5. A healthcare professional is preparing to administer an IV bolus of morphine to a client. Which of the following actions should the healthcare professional take first?

Correct answer: A

Rationale: Correct Answer: Checking the client's respiratory rate is the priority before administering morphine because morphine can depress respiration. This action helps the healthcare professional assess the client's baseline respiratory status and detect any potential respiratory depression that may be exacerbated by morphine. Choice B, administering naloxone, is incorrect because naloxone is used as an antidote for opioid overdose and not routinely administered before giving morphine. Choice C, checking the client's pain level, is important but not the first action to take before administering morphine. Choice D, assessing the client's blood pressure, is also important but not the initial priority compared to evaluating respiratory status when preparing to administer morphine.

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