Which of the following is found in the highes | vedclass

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(D) Blood plasma contains various electrolytes that maintain osmotic pressure and pH balance. Among the given ions, $Na^+$ (sodium) is the primary ext

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$Na^+$

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(D) Blood plasma contains various electrolytes that maintain osmotic pressure and pH balance. Among the given ions, $Na^+$ (sodium) is the primary extracellular cation. The concentration of $Na^+$ in human blood plasma is approximately $135-145 \, mEq/L$. In contrast, the concentrations of $K^+$ $(\approx 3.5-5.0 \, mEq/L)$, $Ca^{+2}$ $(\approx 4.5-5.5 \, mEq/L)$, and $Mg^{+2}$ $(\approx 1.5-2.5 \, mEq/L)$ are significantly lower. Therefore, $Na^+$ is found in the highest concentration.

Which of the following is found in the highest concentration in blood plasma?

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