Nursing Elites

1. 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.

2. The nurse is caring for a client with a history of adrenal insufficiency. The nurse should monitor for which of the following signs of an Addisonian crisis?

• A. Hypertension
• B. Hyperglycemia
• C. Severe hypotension
• D. Tachycardia

Correct answer: C

Rationale: In an Addisonian crisis, there is a lack of adrenal hormones leading to severe hypotension. Hypertension (choice A) is not a typical sign of Addisonian crisis but can occur in conditions like pheochromocytoma. Hyperglycemia (choice B) is not a characteristic sign of an Addisonian crisis. Tachycardia (choice D) may occur as a compensatory mechanism in response to hypotension, but severe bradycardia is more common in an Addisonian crisis.

3. A client with DM is scheduled to have surgery. The nurse should plan to:

• A. Give the client a regular diet as ordered.
• B. Hold the client's insulin on the morning of surgery.
• C. Monitor the client's blood glucose level closely during the perioperative period.
• D. Have the client stop taking insulin 48 hours before surgery.

Correct answer: C

Rationale: The correct answer is to monitor the client's blood glucose level closely during the perioperative period. This is essential to ensure that the client's blood glucose levels remain within the target range and to prevent complications such as hypo- or hyperglycemia. Choices A, B, and D are incorrect because giving a regular diet as ordered, holding insulin on the morning of surgery, or stopping insulin 48 hours before surgery can lead to uncontrolled blood glucose levels, posing risks to the client's safety during the surgical procedure.

4. Early this morning, a female client had a subtotal thyroidectomy. During evening rounds, Nurse Tina assesses the client, who now has nausea, a temperature of 105°F (40.5°C), tachycardia, and extreme restlessness. What is the most likely cause of these signs?

• A. Diabetic ketoacidosis
• B. Thyroid crisis
• C. Hypoglycemia
• D. Tetany

Correct answer: B

Rationale: The correct answer is B: Thyroid crisis. Thyroid crisis, also known as thyroid storm, is a life-threatening condition that can occur after a thyroidectomy. Symptoms include high fever, tachycardia, extreme restlessness, and other signs of severe hyperthyroidism. Diabetic ketoacidosis (choice A) is a complication of diabetes characterized by hyperglycemia, ketosis, and acidosis, not typically seen post-thyroidectomy. Hypoglycemia (choice C) is low blood sugar levels and would not present with the symptoms described. Tetany (choice D) is a condition of involuntary muscle spasms due to low calcium levels and is not directly related to the symptoms observed in this scenario.

5. Following a unilateral adrenalectomy, Nurse Betty would assess for hyperkalemia indicated by which of the following signs?

• A. Muscle weakness
• B. Tremors
• C. Diaphoresis
• D. Constipation

Correct answer: A

Rationale: Muscle weakness is a classic manifestation of hyperkalemia, an elevated level of potassium in the blood. After an adrenalectomy, where one adrenal gland is removed, there may be a risk of hyperkalemia due to altered hormone regulation. Tremors (Choice B) are not typically associated with hyperkalemia but may be seen in conditions like hypocalcemia. Diaphoresis (Choice C) and constipation (Choice D) are not specific indicators of hyperkalemia. Diaphoresis is excessive sweating and constipation is a common gastrointestinal issue, neither directly related to potassium imbalances.

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