A nurse is assessing a preoperative client. The client has a history of atrial fibrillation and is taking warfarin daily. Which test order will the nurse request from the provider?

A serum sodium (Na)

A radiological examination of the chest

A blood urea nitrogen (BUN)

An international normalized ratio (INR)

Answer and Explanation

The Correct Answer is D

A.   Serum sodium levels are typically assessed to evaluate electrolyte balance and hydration status. While important for overall health assessment, it is not specifically related to monitoring the effects of warfarin therapy.
B.   This could be ordered for various reasons such as assessing lung status or identifying any abnormalities in the chest. It is not directly related to monitoring warfarin therapy.
C.   BUN levels are measured to assess kidney function and hydration status. While important for overall health assessment, it is not specifically related to monitoring the effects of warfarin therapy.
D.   The INR is a standardized measurement of the blood's ability to clot. Warfarin works by inhibiting vitamin K-dependent clotting factors, thereby prolonging the time it takes for blood to clot. The INR is used to monitor and adjust warfarin dosage to maintain therapeutic anticoagulation levels, especially in patients with conditions like atrial fibrillation who are at risk of blood clots.

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Correct Answer is ["167"]

Explanation

1 kilogram is equivalent to 2.2 pounds.

The client weighs 245 lbs, which is approximately 111.36 kg (245 lbs / 2.2). The prescribed dosage is 1.5 mg per kilogram.

Therefore, the dosage per dose would be 1.5 mg/kg * 111.36 kg, which equals 167.04 mg. Rounded to the nearest whole number, the nurse should administer 167 mg per dose.

A. Metabolic alkalosis B. Respiratory acidosis C. Metabolic acidosis D. Respiratory alkalosis

Correct Answer is A

Explanation

A. This condition occurs because the suctioning can lead to a significant loss of hydrochloric acid from the stomach. Since hydrochloric acid is one of the components that maintain the acid-base balance in the body, its loss can lead to an increase in blood pH, causing alkalosis
B. Respiratory acidosis occurs due to retention of carbon dioxide (CO2), leading to an increase in PaCO2 and a decrease in pH. In the context of a small bowel obstruction with nasogastric tube suctioning, this is less likely unless there are concurrent respiratory issues.
C. This condition occurs because the suctioning can lead to a significant loss of hydrochloric acid from the stomach. Since hydrochloric acid is one of the components that maintain the acid-base balance in the body, its loss can lead to an increase in blood pH, causing alkalosis. Acidosis is, therefore, unlikely.
D. Respiratory alkalosis occurs due to hyperventilation, leading to a decrease in PaCO2 and an increase in pH. This is less likely in the context of nasogastric tube suctioning unless there are other contributing factors.

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A nurse is assessing a preoperative client. The client has a history of atrial fibrillation and is taking warfarin daily. Which test order will the nurse request from the provider?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Correct Answer is ["167"]

Explanation

A nurse has been assigned to care for a client diagnosed with a small bowel obstruction. The client has a nasogastric tube attached to suction for 2 days. Which arterial blood gas result will the nurse expect to see for this client?

Correct Answer is A

Explanation

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