Canadian Practical Nurse Registration Examination (CPNRE) Practice Exam

Question: 1 / 595

What is the normal range for sodium (Na) levels?

120-130

125-135

135-145

The normal range for sodium (Na) levels in the blood is essential for maintaining various physiological functions, including fluid balance, nerve transmission, and muscle function. A sodium level between 135 and 145 mEq/L is considered normal for adults. Values within this range indicate that the body is effectively regulating sodium levels, which is crucial for overall health.

When sodium levels fall below 135, it can indicate hyponatremia, while levels above 145 may suggest hypernatremia, both of which can lead to potentially serious health complications. Understanding this normal range is vital for healthcare professionals as it informs them about a patient’s electrolyte balance and can guide treatment decisions.

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145-155

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