A nurse is caring for a client who is prescribed warfarin therapy for an artificial heart valve. Which of the following laboratory values should the nurse monitor for a therapeutic effect of warfarin?

Activated partial thromboplastin time (APTT)

Bleeding time

Prothrombin time (PT)

Hemoglobin (Hgb)

Answer and Explanation

The Correct Answer is C

warfarin inhibits vitamin K epoxide reductase interfering with the synthesis of vitamin K dependent clotting factors (II, VII, IX, and X). This prolongs the prothrombin time, expressed in the form of INR international normalized ratio. Monitoring of INR helps to ensure that the prescribed dosages are within the therapeutic levels without increasing the risk of bleeding. The target INR range is between 2.5 and 3.5.
A. Used to monitor heparin therapy

B, D- not used for monitoring

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Correct Answer is C

Explanation

Expectorants are agents used in respiratory conditions such as COPD and cystic fibrosis.

They are used to thin mucus and stimulate bronchial secretions.

A. expectorant do not dry mucus membranes but help loosen and thin mucus secreted

B. unlike cough suppressants, expectorants promote coughing to clear the airway

D. expectorants have no effect on the inflammation process

A. Photosensitivity B. Polyuria C. Headache D. Dependent edema

Correct Answer is C

Explanation

Ondansetron is an antiemetic used in the prevention and management of nausea and vomiting. Its potential side effects include headaches.

A, B, D- Photosensitivity, polyuria and dependent edema are not adverse effects of ondansetron.

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A nurse is caring for a client who is prescribed warfarin therapy for an artificial heart valve. Which of the following laboratory values should the nurse monitor for a therapeutic effect of warfarin?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is teaching a client about taking an expectorant to treat a cough. The nurse should explain that this type of medication has which of the following actions?

Correct Answer is C

Explanation

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Correct Answer is C

Explanation

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