Know Your Blood Parameters: Sodium
- Summarised by TGHC Editorial Team
- Jul 17
- 1 min read
Updated: Aug 6

1. Parameter Name
Sodium
2. Test Type
Blood (serum sodium)
3. Normal Range
135–145 mmol/L
4. High Levels Indicate
Dehydration, kidney dysfunction, hypernatremia.
5. Low Levels Indicate
Hyponatremia, fluid overload, heart/liver/kidney disease.
6. Why It's Tested
To evaluate fluid balance and nerve function.
7. Associated Symptoms (if abnormal)
Confusion, seizures, weakness, swelling.
8. What To Do If Abnormal
Correct fluid balance, review medications or kidney function.
9. Common Conditions Related
Heart failure, SIADH, adrenal disorders.
10. Nutrition or Lifestyle Connection
Salt intake, fluid intake, diuretics.
11. References (APA Format) Mayo Clinic. (2023). Sodium blood test. MedlinePlus. (2023). Hyponatremia.



