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Questions and Answers
What is the body's normal daily potassium requirement to maintain a serum potassium concentration of 3.5 to 5 mEq/L?
What is the body's normal daily potassium requirement to maintain a serum potassium concentration of 3.5 to 5 mEq/L?
- 1 to 2 mEq/kg
- 2 to 3 mEq/kg
- 1.5 to 2.5 mEq/kg
- 0.5 to 1 mEq/kg (correct)
What is the most abundant cation in the intracellular fluid (ICF)?
What is the most abundant cation in the intracellular fluid (ICF)?
- Sodium
- Chloride
- Calcium
- Potassium (correct)
Which hormonal mediator of potassium balance stimulates the cellular Na+/K+ ATPase pump to increase transport of potassium into liver, muscle, and adipose tissue?
Which hormonal mediator of potassium balance stimulates the cellular Na+/K+ ATPase pump to increase transport of potassium into liver, muscle, and adipose tissue?
- Cortisol
- Insulin (correct)
- Glucagon
- Thyroid hormone
What promotes urinary potassium excretion in response to high-serum potassium concentrations?
What promotes urinary potassium excretion in response to high-serum potassium concentrations?
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How is hypokalemia often categorized when the serum potassium is 3.1-3.5 mEq/L?
How is hypokalemia often categorized when the serum potassium is 3.1-3.5 mEq/L?
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