Nursing Elites

1. A healthcare professional reviews a client's electrolyte laboratory report and notes that the potassium level is 3.2 mEq/L. Which of the following would the healthcare professional note on the electrocardiogram as a result of the laboratory value?

• A. U waves
• B. Absent P waves
• C. Elevated T waves
• D. Elevated ST segment

Correct answer: A

Rationale: The correct answer is A: U waves. A low potassium level (hypokalemia) can manifest as U waves on an ECG. U waves are small, extra deflections seen after the T wave and may indicate cardiac irritability. Absent P waves (Choice B) are associated with conditions like atrial fibrillation. Elevated T waves (Choice C) can be seen in hyperkalemia, not hypokalemia. Elevated ST segment (Choice D) is not typically associated with low potassium levels but can be seen in conditions like myocardial infarction.

2. The healthcare provider is assessing a client with Addison's disease. Which of the following symptoms is consistent with this condition?

• A. Hypertension
• B. Hyperglycemia
• C. Hyperpigmentation
• D. Weight gain

Correct answer: C

Rationale: Hyperpigmentation is a characteristic symptom of Addison's disease. In Addison's disease, there is a decrease in cortisol production, leading to an increase in adrenocorticotropic hormone (ACTH) secretion by the pituitary gland. Excess ACTH can stimulate melanocytes, resulting in hyperpigmentation. Choices A, B, and D are not typically associated with Addison's disease. Hypertension is more commonly associated with conditions involving excess cortisol production, such as Cushing's syndrome. Hyperglycemia may occur in diabetes mellitus but is not a hallmark of Addison's disease. Weight loss, rather than weight gain, is a common symptom of Addison's disease due to decreased cortisol levels.

3. The healthcare provider is monitoring a client with Cushing's syndrome. Which of the following findings should the healthcare provider report?

• A. Hypotension
• B. Hyperglycemia
• C. Weight loss
• D. Hypokalemia

Correct answer: B

Rationale: In Cushing's syndrome, hyperglycemia is a common finding due to increased cortisol levels leading to insulin resistance. This can have serious implications such as diabetes mellitus and should be promptly reported for appropriate management. Hypotension (choice A) is more commonly associated with Addison's disease, not Cushing's syndrome. Weight gain rather than weight loss (choice C) is typically observed in clients with Cushing's syndrome. While hypokalemia (choice D) can occur in Cushing's syndrome due to excess cortisol affecting potassium levels, it is not as critical as hyperglycemia and may not be the priority for immediate reporting.

4. The client has been diagnosed with primary aldosteronism. Which of the following clinical findings would the nurse expect?

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

Correct answer: B

Rationale: Primary aldosteronism involves the overproduction of aldosterone by the adrenal glands. Aldosterone increases potassium excretion, leading to hypokalemia. Therefore, in primary aldosteronism, the nurse would expect to find hypokalemia, not hyperkalemia (choice A), hyponatremia (choice C), or hypercalcemia (choice D).

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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