A nurse is caring for a client who is developing signs of hemorrhage after 5 days of continuous warfarin use. Which of the following labs should the nurse utilize to determine the medication's current therapeutic level?

PTT level.

PT/INR level.

D-dimer level.

Vitamin K level.

Answer and Explanation

The Correct Answer is B

Rationale:

A. Partial thromboplastin time (PTT) is used to monitor the effectiveness of heparin therapy, not warfarin.

B. Prothrombin time (PT) and international normalized ratio (INR) are used to monitor the therapeutic level of warfarin. INR is the preferred method as it standardizes the PT results across different laboratories.

C. D-dimer level is a marker of fibrin degradation and is used to assess for the presence of blood clots, not to monitor warfarin therapy.

D. Vitamin K level is not used to monitor warfarin therapy. However, administering vitamin K can reverse the effects of warfarin in cases of overdose or hemorrhage.

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Free Nursing Study Resources

Correct Answer is ["125"]

Explanation

To calculate the IV pump rate in mL/hr, you can use the following formula:

IV pump rate (mL/hr)=Total volume of infusion (mL)/Total time for infusion (hours)

Total volume of infusion=500 mL Total time for infusion=4 hours

IV pump rate (mL/hr)=500 mL/4 hours

=125mL/hr

So, the nurse should set the IV pump to deliver 125 mL/hr.

A. Clopidogrel B. Clonidine C. Hydralazine D. Nifedipine E. Gemfibrozil

Correct Answer is ["B","C"]

Explanation

Rationale:

A. Clopidogrel is an antiplatelet medication used to prevent blood clots, and it is not associated with orthostatic hypotension.

B. Clonidine is an antihypertensive medication that can cause orthostatic hypotension, particularly when changing positions from lying to standing.

C. Hydralazine is an antihypertensive medication that can cause orthostatic hypotension, particularly at higher doses.

D. Nifedipine, a calcium channel blocker, is generally associated with a risk of hypotension; however, it is not specifically indicated as a common cause of orthostatic hypotension.

E. Gemfibrozil is a lipid-lowering medication and is not associated with orthostatic hypotension.

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A nurse is caring for a client who is developing signs of hemorrhage after 5 days of continuous warfarin use. Which of the following labs should the nurse utilize to determine the medication's current therapeutic level?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Correct Answer is ["125"]

Explanation

A nurse is planning care for a client who takes several cardiac medications. The nurse should recognize which of the following medications places the client at risk for orthostatic hypotension? (select all that apply)

Correct Answer is ["B","C"]

Explanation

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