Sodium normal range — check your value

Roughly 135 to 145 mEq/L.

Read my result

Which test?

Type the test name printed on your report (SGPT, TSH, Vitamin D).

Popular:

About you

Name

Mobile Number

+91

Age in years

years

Gender

Your Sodium test value

Copy it exactly as printed in your report

Sodium

mmol/L

What Sodium measures

The main electrolyte outside cells, governing the body's water balance and blood volume.

Sodium normal range chart

ResultSodium (mmol/L)

Below rangeBelow 136

In range136 – 145

Above range145 and above

These bands are for female, 31–45 years. Enter your age and gender above to see the bands for you. The table below shows the range for every age and gender.

Sodium normal range by age and gender

AgeMaleFemale

0–1 years133 – 146 mmol/L133 – 146 mmol/L

2–6 years138 – 145 mmol/L138 – 145 mmol/L

7–11 years138 – 145 mmol/L138 – 145 mmol/L

12–17 years136 – 145 mmol/L136 – 145 mmol/L

18–30 years136 – 145 mmol/L136 – 145 mmol/L

31–45 years136 – 145 mmol/L136 – 145 mmol/L

46–60 years136 – 145 mmol/L136 – 145 mmol/L

60 years and above136 – 145 mmol/L136 – 145 mmol/L

What a high Sodium means, and common causes

Sodium is above range, which almost always means the body is short of water rather than carrying too much salt.

Common causes: Dehydration from inadequate water intake, vomiting or diarrhoea, uncontrolled diabetes, diabetes insipidus, and fever with heavy sweating.

What a low Sodium means, and common causes

Sodium is below range, called hyponatraemia. It is the commonest electrolyte abnormality and when it falls quickly it can cause confusion and seizures.

Common causes: Diuretic medicines, heart, liver or kidney failure, SIADH, excessive plain water intake, severe vomiting or diarrhoea, adrenal insufficiency, and some antidepressants.

Frequently asked questions

Roughly 135 to 145 mEq/L.

Usually not, and doing so can be harmful. Low sodium is most often a water balance problem, which is why doctors look at medicines, heart, liver and kidney function first.

Mild cases cause tiredness, nausea and headache. A rapid fall can cause confusion, drowsiness and seizures, which need emergency care.

Khud se namak badhana theek nahin. Doctor se milein, kyunki aksar yeh dawai ya paani ke santulan ki samasya hoti hai.

Please note. This page explains what a number means against reference ranges for your age and gender. It does not diagnose anything, cannot see the rest of your report, and is no substitute for a doctor. If your lab’s printed range differs, your lab’s range applies.