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 B

Explanation

pulling the auricle down and back, is recommended for pediatric clients for proper visualization. It also helps prevent the eardrops from pooling at the entrance of the ear canal, allowing them to flow more effectively into the ear.

A, pulling the auricle down and out is not recommended as it may lead to pooling of the drop and spillage

CThis is not recommended in children

D Pulling the auricle up and back is recommended for adults.

A. Mannitol B. Albumin C. Hydroxyethyl glucose D. Dextran 70

Correct Answer is A

Explanation

Following traumatic brain injury, the cerebral tissues undergoes an inflammatory process in response to the trauma leading to brain edema. This increases intracranial pressure which presents with features such as seizures, headaches and other focal neurological deficits. Mannitol is an osmotic diuretic that works by drawing water out of brain tissue and into the bloodstream, thereby reducing cerebral edema and intracranial pressure.
B, C, D have no role in raised intracranial pressure

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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

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Correct Answer is B

Explanation

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Correct Answer is A

Explanation

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