what lab value should a nurse monitor for a patient on warfarin therapy
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Nursing Elites

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ATI RN Exit Exam Test Bank

1. What lab value should a healthcare provider monitor for a patient on warfarin therapy?

Correct answer: B

Rationale: The correct answer is B: PT/INR. When a patient is on warfarin therapy, healthcare providers monitor the PT/INR levels to evaluate the effectiveness of the treatment and assess the risk of bleeding. Monitoring potassium, sodium, or calcium levels is not directly related to warfarin therapy and would not provide the necessary information needed to manage the medication effectively.

2. Which electrolyte imbalance is common in patients receiving diuretics?

Correct answer: A

Rationale: The correct answer is Hypokalemia. Diuretics, such as furosemide, commonly cause potassium loss in patients, leading to hypokalemia. This electrolyte imbalance should be closely monitored to prevent complications like cardiac arrhythmias. Hypercalcemia (Choice B) is not typically associated with diuretic use. Hyponatremia (Choice C) involves low sodium levels and can occur in conditions like syndrome of inappropriate antidiuretic hormone secretion (SIADH) but is not directly caused by diuretics. Hypermagnesemia (Choice D) is an excess of magnesium, usually not a common electrolyte imbalance induced by diuretics.

3. A nurse is assessing a client who is postoperative following abdominal surgery and has an indwelling urinary catheter that is draining dark yellow urine at 25 ml/hr. What intervention should the nurse anticipate?

Correct answer: D

Rationale: In this scenario, the nurse should anticipate initiating continuous bladder irrigation. Dark yellow urine output at a rate of 25 ml/hr following abdominal surgery may indicate urinary stasis or obstruction, which could lead to complications like urinary retention. Continuous bladder irrigation helps prevent catheter obstruction and manage urinary retention by ensuring patency and promoting urine flow. Clamping the catheter (Choice A) could lead to urinary stasis and should be avoided. Administering a fluid bolus (Choice B) is not indicated solely based on the urine color and output described. Obtaining a urine specimen for culture and sensitivity (Choice C) may be necessary for assessing infection but does not directly address the issue of urinary stasis or obstruction.

4. A charge nurse is preparing to lead negotiations among nursing staff due to conflict about overtime requirements. Which of the following strategies should the nurse use to promote effective negotiation?

Correct answer: C

Rationale: In negotiating conflicts, it is crucial to attempt to understand both sides of the issue. This strategy helps the charge nurse gain insights into the perspectives and concerns of all parties involved, facilitating a more effective negotiation process. Choice A is not ideal as identifying solutions prior to negotiation may overlook important viewpoints or needs. Choice B is vague and does not provide a specific action plan for resolving the conflict. Choice D is incorrect as personalizing the conflict can lead to biased decision-making and hinder the negotiation process.

5. A nurse is providing discharge teaching for a group of clients. The nurse should recommend a referral to a dietitian.

Correct answer: C

Rationale: The correct answer is C. Spironolactone is a potassium-sparing diuretic, which means it helps the body retain potassium and excrete sodium and water. Therefore, clients on spironolactone should reduce their intake of foods high in potassium to prevent hyperkalemia. Choices A, B, and D are incorrect because limiting spinach intake due to warfarin, eating anchovies with gout, and taking calcium carbonate with water for osteoporosis do not directly relate to the medication's side effects or dietary restrictions associated with spironolactone.

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Which lab value is critical for patients on warfarin therapy?

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