Sodium Blood Test

The Sodium Test measures the concentration of sodium in the blood, which normally ranges from 135–145 mEq/L.

• High Sodium Levels (Hypernatremia):

  Occurs above 145 mEq/L and is commonly caused by:

  • Excessive urination

  • Severe dehydration

  • Diabetes Insipidus

  • Certain hormonal disorders

    Symptoms include confusion, restlessness, seizures, and coma in severe cases.

• Low Sodium Levels (Hyponatremia):

  Occurs below 130 mEq/L, and severe cases fall at or below 125 mEq/L.

  Causes include:

  • Severe diarrhea and vomiting

  • Kidney and liver diseases

  • Excessive fluid intake

  • Certain medications

If sodium drops rapidly, it can cause brain swelling, seizures, and life-threatening complications. Hence, early detection through this test is critical.

The Sodium Test is a blood-based electrolyte test used to assess the body’s hydration status and electrolyte balance. It is commonly prescribed in cases of kidney disorders, severe dehydration, unexplained weakness, and hormonal imbalances.