Nursing Elites

1. After undergoing a subtotal thyroidectomy, a female client develops hypothyroidism. Dr. Smith prescribes levothyroxine (Levothroid), 25 mcg P.O. daily. For which condition is levothyroxine the preferred agent?

• A. Primary hypothyroidism
• B. Graves' disease
• C. Thyrotoxicosis
• D. Euthyroidism

Correct answer: A

Rationale: Levothyroxine is the preferred agent for primary hypothyroidism because it provides the necessary replacement of thyroid hormone in patients with deficient thyroid function. Choice B, Graves' disease, is an autoimmune disorder that causes hyperthyroidism and is typically treated with antithyroid medications or radioactive iodine. Choice C, thyrotoxicosis, refers to the clinical state resulting from excessive thyroid hormone action and is not typically treated with levothyroxine. Choice D, euthyroidism, describes a normal thyroid function and would not require treatment with levothyroxine.

2. What is the most common cause of hyperaldosteronism?

• A. Excessive sodium intake
• B. A pituitary adenoma
• C. Deficient potassium intake
• D. An adrenal adenoma

Correct answer: D

Rationale: An adrenal adenoma is the most common cause of primary hyperaldosteronism. Hyperaldosteronism is typically caused by an adrenal adenoma, a benign tumor in the adrenal gland that leads to excessive aldosterone production. Excessive sodium intake (Choice A) does not directly cause hyperaldosteronism. Pituitary adenoma (Choice B) is associated with conditions like Cushing's disease, not hyperaldosteronism. Deficient potassium intake (Choice C) can lead to hypokalemia but is not a common cause of hyperaldosteronism.

3. A client with type 2 DM is prescribed metformin (Glucophage). The nurse should include which instruction when teaching the client about this medication?

• A. Take the medication with meals.
• B. Take the medication on an empty stomach.
• C. Avoid taking the medication if you miss a meal.
• D. Take the medication before bedtime.

Correct answer: A

Rationale: The correct instruction when taking metformin (Glucophage) is to take the medication with meals. Taking metformin with meals helps to reduce gastrointestinal side effects and improve absorption. Choice B is incorrect because taking metformin on an empty stomach can increase the risk of gastrointestinal side effects. Choice C is incorrect because missing a meal does not mean the medication should be avoided; the client should still take it with the next meal. Choice D is incorrect because there is no specific recommendation to take metformin before bedtime.

4. Which of the following symptoms would be most concerning in a client with diabetes insipidus?

• A. Polydipsia
• B. Polyuria
• C. Nocturia
• D. Hypertension

Correct answer: D

Rationale: In a client with diabetes insipidus, excessive thirst (polydipsia) and excessive urination (polyuria) are expected symptoms due to the inability to concentrate urine, leading to dilute urine production. Nocturia, waking up at night to urinate, is also common. However, hypertension is not a typical symptom of diabetes insipidus. The correct answer is D because hypertension may indicate a complication such as dehydration or electrolyte imbalances, which would require further assessment in a client with diabetes insipidus.

5. A client with a nasogastric tube requires irrigation once every shift. The client's serum electrolyte results show a potassium level of 4.5 mEq/L and a sodium level of 132 mEq/L. Based on these findings, which solution should the nurse use for nasogastric tube irrigation?

• A. Tap water
• B. Sterile water
• C. Sodium chloride
• D. Normal saline

Correct answer: C

Rationale: The correct solution for nasogastric tube irrigation in this scenario is sodium chloride. The client's low sodium level of 132 mEq/L indicates the need to avoid further imbalance, making sodium chloride the most appropriate choice. Using tap water, which lacks electrolytes, or sterile water could potentially exacerbate the electrolyte imbalance. Normal saline, while similar to sodium chloride, may not be the best choice as it contains a higher concentration of sodium, which could further elevate the client's already borderline sodium level.

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