Nursing Elites

1. A nurse caring for a client with hypocalcemia would expect to note which of the following changes on the electrocardiogram?

• A. Widened T wave
• B. Prominent U wave
• C. Prolonged QT interval
• D. Shortened ST segment

Correct answer: C

Rationale: In hypocalcemia, a decreased level of calcium can lead to a prolonged QT interval on the ECG due to its role in myocardial repolarization. A widened T wave (Choice A) is typically seen in hyperkalemia. A prominent U wave (Choice B) is associated with hypokalemia. A shortened ST segment (Choice D) is not a typical ECG finding in hypocalcemia.

2. For a diabetic male client with a foot ulcer, the physician orders bed rest, a wet-to-dry dressing change every shift, and blood glucose monitoring before meals and bedtime. Why are wet-to-dry dressings used for this client?

• A. They contain exudate and provide a moist wound environment.
• B. They protect the wound from mechanical trauma and promote healing.
• C. They debride the wound and promote healing by secondary intention.
• D. They prevent the entrance of microorganisms and minimize wound discomfort.

Correct answer: C

Rationale: Wet-to-dry dressings are utilized in this case to debride the wound by removing dead tissue and promoting healing by secondary intention. Choice A is incorrect as wet-to-dry dressings do not provide a moist wound environment; instead, they promote drying to aid in debridement. Choice B is incorrect because their primary purpose is not to protect the wound but to remove dead tissue. Choice D is incorrect as the main function of wet-to-dry dressings is not to prevent the entrance of microorganisms or minimize wound discomfort.

3. A client with hyperparathyroidism is receiving dietary instructions. Which of the following foods should the client avoid?

• A. Milk
• B. Bananas
• C. Spinach
• D. Processed meats

Correct answer: A

Rationale: In hyperparathyroidism, there are already elevated calcium levels in the body. Therefore, clients should avoid high-calcium foods like milk to prevent further increase in calcium levels. Bananas, spinach, and processed meats do not have significant calcium content and do not need to be avoided specifically in hyperparathyroidism.

4. A female client with Cushing's syndrome is admitted to the medical-surgical unit. During the admission assessment, Nurse Tyzz notes that the client is agitated, irritable, has poor memory, reports loss of appetite, and appears disheveled. These findings are consistent with which problem?

• A. Depression
• B. Neuropathy
• C. Hypoglycemia
• D. Hyperthyroidism

Correct answer: A

Rationale: The correct answer is A: Depression. Depression is a common psychological manifestation in clients with Cushing's syndrome. In this scenario, the client's symptoms of agitation, irritability, poor memory, loss of appetite, and disheveled appearance are indicative of depressive symptoms rather than neuropathy, hypoglycemia, or hyperthyroidism. Neuropathy typically presents with sensory changes and motor deficits, which are not described in the scenario. Hypoglycemia would manifest with symptoms such as diaphoresis, tremors, and confusion, which are not mentioned. Hyperthyroidism symptoms include weight loss, heat intolerance, and palpitations, which are not consistent with the client's presentation.

5. 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.

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