When monitoring a patient on heparin therapy, what laboratory test is used to assess the effectiveness of the medication?

Prothrombin time (PT)

Activated partial thromboplastin time (aPTT)

International normalized ratio (INR)

Serum potassium level

Answer and Explanation

The Correct Answer is B

A. Prothrombin time (PT) is used to monitor warfarin therapy, not heparin therapy.

B. Activated partial thromboplastin time (aPTT) is the primary laboratory test used to assess the effectiveness of heparin therapy, measuring the time it takes for blood to clot and ensuring therapeutic levels.

C. The International normalized ratio (INR) is also related to warfarin therapy rather than heparin.

D. Serum potassium level is not relevant for assessing heparin therapy but may be monitored for other reasons.

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Correct Answer is B

Explanation

A. While dietary intake is important, especially regarding sodium and fluid balance, it is not the highest priority compared to monitoring blood pressure.

B. Monitoring the client's blood pressure is essential to evaluate the effectiveness of the prescribed antihypertensive medications and to ensure the client is within the target range for managing her hypertension.

C. Weighing the client is important for monitoring fluid retention, especially with hydrochlorothiazide, but it is secondary to direct blood pressure monitoring.

D. Monitoring the respiratory rate is generally less critical in this scenario unless there are specific concerns related to medication side effects or respiratory conditions.

A. hypertension B. liver dysfunction C. peripheral vascular disease D. diverticulitis disease

Correct Answer is C

Explanation

A. Hypertension can affect drug distribution to some extent due to altered perfusion but is not the most significant factor impacting distribution, especially for a local condition like cellulitis.

B. Liver dysfunction primarily affects the metabolism and clearance of drugs rather than their distribution, although it may indirectly influence distribution by altering protein binding.

C. Peripheral vascular disease significantly impacts blood flow to the extremities, which can hinder the distribution of the antibiotic to the affected area (the left leg) where the cellulitis is present, leading to reduced drug efficacy.

D. Diverticulitis disease primarily affects the gastrointestinal system and would not directly influence the distribution of an antibiotic used to treat cellulitis in the leg.

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When monitoring a patient on heparin therapy, what laboratory test is used to assess the effectiveness of the medication?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Correct Answer is B

Explanation

The nurse is administering an antibiotic to a client with a diagnosis of cellulitis of the left leg. Which client condition would have the greatest effect on the drug's distribution?

Correct Answer is C

Explanation

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