Normal saline contains 0.154 mEq/mL of which electrolyte?

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Study for the RNC-NICU Test. Prepare with interactive flashcards and detailed multiple-choice questions, each with explanations. Ace your exam for the neonatal intensive care unit certification!

Multiple Choice

Normal saline contains 0.154 mEq/mL of which electrolyte?

Explanation:
0.154 mEq/mL corresponds to 154 mEq per liter, which is the amount of sodium (and chloride) in 0.9% NaCl. Normal saline is 0.9% sodium chloride, giving about 154 mEq/L of Na+ and 154 mEq/L of Cl−. The electrolyte emphasized by this concentration is sodium, the primary extracellular cation in this solution, so the correct answer is sodium.

0.154 mEq/mL corresponds to 154 mEq per liter, which is the amount of sodium (and chloride) in 0.9% NaCl. Normal saline is 0.9% sodium chloride, giving about 154 mEq/L of Na+ and 154 mEq/L of Cl−. The electrolyte emphasized by this concentration is sodium, the primary extracellular cation in this solution, so the correct answer is sodium.

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