The most abundant cation in extracellular fluid is:
A) magnesium.
B) sodium.
C) calcium.
D) potassium.

Name: The most abundant cation in extracellular fluid is: A) magnesium. B) sodium. C) calcium. D) potassium.
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Question

Quizplus · Accepted Answer

Sodium is the most abundant cation in extracellular fluid, with a concentration of around 135-145 millimoles per liter. Magnesium, calcium, and potassium are also important cations, but they are found in lower concentrations in extracellular fluid compared to sodium.

The Most Abundant Cation in Extracellular Fluid Is