Nursing Elites

1. The client with type 1 DM asks why it is necessary to rotate injection sites when managing insulin therapy. The nurse's best response is:

• A. It helps prevent skin irritation.
• B. It helps prevent scar tissue buildup.
• C. It ensures more consistent insulin absorption.
• D. It makes the injections less painful.

Correct answer: C

Rationale: Rotating injection sites is necessary to ensure more consistent insulin absorption. This practice helps maintain stable blood glucose levels by preventing the formation of lipohypertrophy (fatty lumps under the skin) at injection sites. Choices A and B are incorrect as the primary purpose of rotating injection sites is not focused on preventing skin irritation or scar tissue buildup. While rotating injection sites may contribute to reducing pain over time, the primary benefit is the consistency in insulin absorption to support glycemic control, making choice D less relevant.

2. A client with DM is preparing for a foot care exam. The nurse should advise the client to:

• A. Wear loose-fitting shoes to protect the feet.
• B. Apply lotion to the tops and bottoms of the feet to keep the skin moist.
• C. Avoid using a heating pad to prevent burns on the feet.
• D. Avoid using sharp instruments to trim the toenails.

Correct answer: D

Rationale: The correct answer is to advise the client to avoid using sharp instruments to trim the toenails. This is crucial because using sharp instruments can lead to injuries such as cuts or wounds, increasing the risk of infections, especially in clients with diabetes who have decreased sensation in their feet. Choice A is incorrect because tight shoes can restrict circulation and increase the risk of pressure sores. Choice B is incorrect because applying lotion between the toes can create a moist environment, leading to fungal infections. Choice C is incorrect because using a heating pad can lead to burns, which can go unnoticed due to decreased sensation in diabetic feet.

3. Acarbose (Precose), an alpha-glucosidase inhibitor, is prescribed for a female client with type 2 diabetes mellitus. During discharge planning, nurse Pauleen would be aware of the client's need for additional teaching when the client states:

• A. If I have hypoglycemia, I should eat some sugar, not dextrose.
• B. The drug makes my pancreas release more insulin.
• C. I should never take insulin while I'm taking this drug.
• D. It's best if I take the drug with the first bite of a meal.

Correct answer: B

Rationale: The correct answer is B. Acarbose (Precose) is an alpha-glucosidase inhibitor that works by slowing carbohydrate absorption in the intestine, not by stimulating insulin release. Therefore, the client would need additional teaching if they state that the drug makes their pancreas release more insulin (Choice B). Choices A, C, and D are incorrect. Choice A is incorrect because during hypoglycemia, it is recommended to consume glucose or dextrose to rapidly raise blood sugar levels. Choice C is incorrect because insulin therapy may still be needed in some cases, even when taking acarbose. Choice D is incorrect because acarbose should be taken at the start of a meal to help reduce postprandial blood glucose levels.

4. A healthcare provider caring for a client with severe malnutrition reviews the laboratory results and notes a magnesium level of 1.0 mg/dL. Which electrocardiographic change would the healthcare provider expect to note based on the magnesium level?

• A. Prominent U waves
• B. Prolonged PR interval
• C. Depressed ST segment
• D. Widened QRS complexes

Correct answer: C

Rationale: A magnesium level of 1.0 mg/dL can cause a depressed ST segment on the ECG. Magnesium deficiency commonly leads to ST segment depression on an electrocardiogram. Prominent U waves are associated with hypokalemia, prolonged PR interval is seen in conditions like first-degree heart block, and widened QRS complexes are typically related to conditions affecting the conduction system of the heart, such as bundle branch blocks.

5. 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.

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