A client is receiving warfarin for atrial fibrillation. Which of the following laboratory tests should the nurse expect to be ordered to monitor the effect of warfarin?

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Question 1 of 5

A client is receiving warfarin for atrial fibrillation. Which of the following laboratory tests should the nurse expect to be ordered to monitor the effect of warfarin?

Correct Answer: B

Rationale: The correct answer is B: International normalized ratio (INR). When a client is on warfarin therapy, the INR is monitored regularly to assess the anticoagulant effects of the medication. A therapeutic INR range for most indications is between 2.0 to 3.0. Choices A, C, and D are not typically used to monitor the effect of warfarin. Platelet count assesses the number of platelets in the blood, PT measures the clotting time of plasma, and PTT evaluates the intrinsic pathway of coagulation.

Question 2 of 5

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.

Question 3 of 5

While caring for a client with an arterial line, which of the following actions should the nurse take?

Correct Answer: C

Rationale: Obtaining arterial blood gases is a crucial nursing action when caring for a client with an arterial line. This procedure helps assess the client's oxygenation status and acid-base balance accurately. Leveling the transducer with the client's phlebotomy site (A) is important for accurate pressure measurements, but it is not the primary action in this scenario. Flushing the arterial line every 8 hours (B) is a routine maintenance procedure and not the immediate priority. Keeping the client's hand elevated above the heart level (D) is a good practice to prevent swelling, but it is not directly related to the arterial line care in this case.

Question 4 of 5

A nurse is reviewing the medical record of a client who has acute kidney injury. Which of the following findings should the nurse report to the provider?

Correct Answer: C

Rationale: The correct answer is C, 'Serum creatinine 3.5 mg/dL.' An elevated serum creatinine level indicates worsening kidney function and impaired renal clearance, which should be reported to the provider promptly. Choice A, 'Blood urea nitrogen (BUN) 15 mg/dL,' is within the normal range (7-20 mg/dL) and does not indicate acute kidney injury. Choice B, 'Urine output of 45 mL/hr,' is a low urine output but does not directly reflect kidney function decline. Choice D, 'Calcium 9 mg/dL,' is within the normal calcium range (8.5-10.5 mg/dL) and is not specifically indicative of acute kidney injury.

Question 5 of 5

A client is receiving chemotherapy and is being taught about preventing infection. Which of the following instructions should the nurse include?

Correct Answer: B

Rationale: Clients receiving chemotherapy are instructed to avoid fresh fruits and vegetables to lower the risk of infection. Fresh produce may harbor bacteria or other pathogens that could be harmful to individuals with compromised immune systems. Taking the temperature daily may be important but is not directly related to preventing infection. Limiting high-protein foods is not necessary unless there are specific dietary restrictions due to the treatment plan. Increasing the intake of high-fat foods is not recommended during chemotherapy as a high-fat diet may lead to other health issues.

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