Which is the most dangerous electrolyte imbalance?
hyperkalemia
hyponatremia
hypokalemia
hypernatremia
The Correct Answer is A
A. hyperkalemia: Elevated potassium can cause fatal cardiac arrhythmias.
B. hyponatremia: While it can be serious, it typically causes neurologic symptoms and is less immediately life-threatening than hyperkalemia.
C. hypokalemia: Also dangerous but usually less acutely life-threatening than hyperkalemia.
D. hypernatremia: Can cause serious symptoms but not as immediately dangerous to cardiac function.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. hypochloremia: Chloride loss may occur, but it's less critical than potassium loss.
B. hypokalemia: Diuretics, especially loop diuretics like furosemide, cause potassium loss, leading to hypokalemia.
C. hyponatremia: Thiazide diuretics may cause this, but hypokalemia is more common and dangerous.
D. hypoglycemia: Diuretics do not typically cause hypoglycemia.
Correct Answer is D
Explanation
A. young adults: They have a relatively high percentage of body water (50–60%).
B. children: Children have more body water than adults.
C. infants: Infants have the highest body water content (~70–80%).
D. elderly adults: Aging leads to a decrease in lean body mass and total body water.
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