Which serum electrolyte value alerts the nurse to the possibility of hyperaldosteronism?
Serum sodium, 150 mmol/L; serum potassium, 2.5 mmol/L
Serum sodium, 140 mmol/L; serum potassium, 5.0 mmol/L
Serum sodium, 130 mmol/L; serum potassium, 7.5 mmol/L
Serum sodium, 130 mmol/L; serum potassium, 2.5 mmol/L
The Correct Answer is A
A. Hyperaldosteronism causes sodium retention and potassium excretion, leading to elevated serum sodium levels and low potassium levels. A serum potassium level of 2.5 mmol/L is indicative of hypokalemia, which is a classic finding in hyperaldosteronism.
B. This serum electrolyte pattern (normal sodium and potassium) is not suggestive of hyperaldosteronism.
C. In hyperaldosteronism, the serum sodium is typically elevated, but the potassium level is very low, not elevated as seen in this option.
D. While low potassium is indicative of hyperaldosteronism, the sodium level is abnormally low in this case, which is not typical for this condition. Hyperaldosteronism typically presents with elevated sodium.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. "It is caused by the lack of production of insulin by the pancreas.": This is incorrect. The lack of insulin production causes diabetes mellitus, not Addison’s disease. Addison’s disease results from insufficient production of adrenal hormones, particularly aldosterone and cortisol.
B. "It is caused by the overproduction of parathormone by the parathyroid gland.": This is incorrect. Parathormone is produced by the parathyroid glands and regulates calcium balance, but overproduction of parathormone leads to conditions such as hyperparathyroidism, not Addison’s disease.
C. "It is caused by the lack of production of aldosterone by the adrenal gland.": This is correct. Addison’s disease, also known as primary adrenal insufficiency, is caused by the inability of the adrenal glands to produce sufficient aldosterone and cortisol, two critical hormones. Aldosterone helps regulate sodium and potassium balance, and cortisol helps the body respond to stress.
D. "It is caused by the overproduction of growth hormone by the pituitary gland.": This is incorrect. Overproduction of growth hormone causes acromegaly or gigantism, not Addison’s disease. Addison’s disease results from adrenal insufficiency, not pituitary gland dysfunction.
Correct Answer is ["B","D","E"]
Explanation
A. Monitor for postural hypotension: This is unlikely in Cushing’s syndrome, where hypertension (not hypotension) is more common due to excess cortisol and fluid retention.
B. Assess blood glucose level: Hyperglycemia is common in Cushing’s syndrome due to the effects of cortisol on glucose metabolism, so monitoring blood glucose levels is essential.
C. Monitor for an irregular heart rate: While Cushing's syndrome can lead to electrolyte imbalances that may affect heart rhythm, this is not a primary intervention in Cushing's syndrome. Monitoring for hypertension and fluid retention is more critical.
D. Assess for neck vein distention: Elevated cortisol levels can lead to fluid retention and hypertension, contributing to neck vein distention, so this is an important observation.
E. Weigh the client daily: Fluid retention and weight gain are key features of Cushing's syndrome, so daily weight monitoring helps assess fluid status and detect rapid weight gain indicative of worsening symptoms.
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