A nurse is preparing to administer warfarin to a client who has chronic atrial fibrillation. Which of the following laboratory values should the nurse monitor prior to administering the medication?

LDL

INR

BUN

Hct

Answer and Explanation

The Correct Answer is B

Choice A Reason:

LDL (Low-Density Lipoprotein) is incorrect. This is a type of cholesterol and is not specifically monitored in relation to warfarin therapy.

Choice B Reason:

INR (International Normalized Ratio) is correct. Warfarin is an anticoagulant medication, and its dosage needs to be adjusted based on the INR levels. INR monitoring helps assess the clotting tendency of the blood and ensures that the dosage of warfarin is within the therapeutic range to prevent blood clots without causing excessive bleeding.

Choice C Reason:

BUN (Blood Urea Nitrogen) is incorrect. This value is primarily used to assess kidney function and is not directly related to monitoring warfarin therapy.

Choice D Reason:

Hct (Hematocrit) is incorrect. This measures the percentage of red blood cells in the blood and is not directly related to monitoring warfarin therapy for atrial fibrillation.

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Free Nursing Study Resources

Correct Answer is A, B, C, D, E

Explanation

A. Cleanse the site with an antiseptic swab: Begin by cleaning the puncture site to reduce the risk of infection. B. Allow the site to dry: Let the antiseptic dry completely to prevent contamination or dilution of the blood sample. C. Pierce the puncture site quickly: Use a lancet to pierce the skin in one swift motion to minimize discomfort. D. Squeeze the site gently to obtain a blood droplet: Gently apply pressure to the site to encourage a droplet of blood to form. E. Apply blood to the test strip: Once the blood droplet forms, apply it to the test strip for analysis.

A. Replace the unit when the drainage chamber is full. B. Clamp the tube for 30 min every 8 hr. C. Pin the tubing to the client's bed sheets. D. Monitor for at least 150 mL of drainage every hour.

Correct Answer is A

Explanation

Choice A Reason:
Replace the unit when the drainage chamber is full is correct. Regularly emptying the drainage chamber when it becomes full is essential to ensure the drainage system functions properly and continues to effectively remove fluids or air from the chest cavity.

Choice B Reason:
Clamp the tube for 30 min every 8 hr. is incorrect.
Clamping a chest tube without a specific medical order or indication can lead to complications such as a buildup of pressure within the chest cavity or potential damage to the lungs. It's generally not a routine action to clamp the tube without proper instruction.

Choice C Reason:
Pin the tubing to the client's bed sheets is incorrect. Pinning the tubing to the bed sheets can cause tension on the chest tube, leading to accidental dislodgment or obstruction. The tubing should be secured but not pinned to prevent inadvertent movement.

Choice D Reason:
Monitor for at least 150 mL of drainage every hour is incorrect. There isn't a standard or prescribed amount of drainage that should occur hourly. The nurse should monitor the drainage rate and characteristics but shouldn't expect a specific volume within a set timeframe. Monitoring for excessive or decreased drainage and changes in characteristics is crucial, but an hourly volume expectation isn't appropriate.

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A nurse is preparing to administer warfarin to a client who has chronic atrial fibrillation. Which of the following laboratory values should the nurse monitor prior to administering the medication?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Correct Answer is A, B, C, D, E

Explanation

A nurse is assisting with the care of a client who has a closed-chest tube drainage system. Which of the following actions should the nurse take?

Correct Answer is A

Explanation

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