Nursing Elites

1. A client with chronic renal failure is being treated with sodium polystyrene sulfonate (Kayexalate). The nurse should monitor the client for which of the following?

• A. Hyponatremia.
• B. Hypokalemia.
• C. Hyperkalemia.
• D. Hypocalcemia.

Correct answer: C

Rationale: The correct answer is C: Hyperkalemia. Sodium polystyrene sulfonate (Kayexalate) is used to treat high potassium levels (hyperkalemia) by exchanging sodium ions for potassium ions in the large intestine, which is then eliminated through the feces. Therefore, the nurse should monitor the client for changes in potassium levels to ensure the effectiveness of the treatment. Choices A, B, and D are incorrect because sodium polystyrene sulfonate (Kayexalate) is not associated with causing hyponatremia, hypokalemia, or hypocalcemia.

2. Which of the following is a key symptom of hyperthyroidism?

• A. Weight loss.
• B. Weight gain.
• C. Tachycardia.
• D. Dry skin.

Correct answer: A

Rationale: The correct answer is weight loss. In hyperthyroidism, there is an excess production of thyroid hormones leading to an increased metabolic rate. This increased metabolism can result in weight loss despite normal or increased appetite. Choice B (Weight gain) is more commonly associated with hypothyroidism where the metabolic rate is decreased. Choice C (Tachycardia) is another common symptom of hyperthyroidism due to the effects of thyroid hormones on the heart, causing an increased heart rate. Choice D (Dry skin) is not a typical symptom of hyperthyroidism; instead, it is more commonly associated with hypothyroidism.

3. A client is receiving a continuous IV infusion of heparin for the treatment of deep vein thrombosis. The client’s activated partial thromboplastin time (aPTT) level is 80 seconds. The client’s baseline before the initiation of therapy was 30 seconds. Which action does the nurse anticipate is needed?

• A. Shutting off the heparin infusion
• B. Increasing the rate of the heparin infusion
• C. Decreasing the rate of the heparin infusion
• D. Leaving the rate of the heparin infusion as is

Correct answer: C

Rationale: The nurse needs to decrease the rate of the heparin infusion. The therapeutic dose of heparin for the treatment of deep vein thrombosis is designed to keep the aPTT between 1.5 and 2.5 times normal. With the client's aPTT level elevated to 80 seconds from a baseline of 30 seconds, it indicates that the current rate of heparin infusion is too high. Lowering the rate of infusion is necessary to bring the aPTT within the desired therapeutic range. Choices A, B, and D are incorrect because shutting off the infusion, increasing the rate, or leaving it as is would not address the elevated aPTT level and may lead to complications.

4. What is the primary action of insulin in the body?

• A. To lower blood pressure.
• B. To promote the absorption of glucose into cells.
• C. To increase blood glucose levels.
• D. To decrease blood glucose levels.

Correct answer: B

Rationale: The correct answer is B: To promote the absorption of glucose into cells. Insulin facilitates the uptake of glucose by cells, thereby decreasing blood glucose levels. Choice A is incorrect as insulin does not directly affect blood pressure. Choice C is inaccurate as insulin works to lower, not increase, blood glucose levels. Choice D is incorrect because insulin's primary role is to lower, not increase, blood glucose levels by promoting glucose uptake into cells.

5. Which of the following is the best indicator of long-term glycemic control in a patient with diabetes?

• A. Fasting blood glucose levels.
• B. Postprandial blood glucose levels.
• C. Hemoglobin A1c.
• D. Random blood glucose levels.

Correct answer: C

Rationale: The correct answer is C, Hemoglobin A1c. Hemoglobin A1c measures the average blood glucose level over the past 2-3 months, providing a reliable indicator of long-term glycemic control. Fasting blood glucose levels (choice A) only offer a snapshot of the current glucose level and can fluctuate throughout the day. Postprandial blood glucose levels (choice B) reflect glucose levels after meals but do not give a comprehensive view of long-term control. Random blood glucose levels (choice D) are taken at any time and lack the consistency needed to assess long-term glycemic control effectively. Therefore, Hemoglobin A1c is the superior choice for monitoring and managing diabetes over an extended period.

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