The primary extracellular cations in the body are:
a. Calcium and chloride
b. Sodium and calcium
c. Magnesium and potassium
d. Iron and sodium bicarbonate
b
Rationale: a. Although calcium is a primary cation in extracellular fluid, chloride is an anion.
b. Correct.
c. Magnesium and potassium are found in the intracellular space.
d. Iron and sodium bicarbonate are not primary cations in extracellular space.
Health Professions
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