NCLEX Question for major cation in body fluid

NCLEX Review Question

Which of the following electrolytes is a major cation in body fluid?

a.Potassium
b.Chloride
c.Bicarbonate
d.Phosphate

Correct Answer: A
Potassium
Rationale: Potassium is a major cation that affects cardiac muscle functioning.

Chloride
Rationale: Chloride is an anion.

Bicarbonate
Rationale: Bicarbonate is an anion.

Phosphate
Rationale: Phosphate is an anion.

Posted in: MSN NCLEX