Understanding your Sodium results
A sodium blood test measures the amount of sodium, an important electrolyte, circulating in the bloodstream. This test helps healthcare professionals understand fluid balance and check overall organ function.
What is the normal Sodium range?
- India
- No India-specific national reference interval is published for this parameter; your lab's printed range is the most reliable comparison.
- International
- Normal: 136–145 mEq/L (CLSI / clinical reference)
Ranges vary by lab, method and equipment — the range printed on your own report is the one that applies to your result.
Source: [CLSI, 2010]
What does a high Sodium result mean?
A high level usually means you have lost more water than salt, often from dehydration. It can cause thirst and confusion worth discussing with your doctor.
What does a low Sodium result mean?
A low level can come from holding too much water, some hormone imbalances, or drinking too much fluid. It can cause nausea, headache, or confusion worth discussing with your doctor.
What affects your Sodium result?
Sodium levels can be influenced by daily fluid intake, overall hydration, sweating, kidney function, and changes in hormone balance.
- Fluid and water intake
- Kidney and hormone control
- Salt intake
- Vomiting, diarrhoea, or sweating
- Water pills
Frequently asked questions
- What role does sodium play in the body?
- Sodium helps maintain the proper balance of fluids inside and outside cells while supporting normal nerve signaling and muscle contractions.
- Why is a sodium test typically ordered?
- Healthcare providers often request this test during routine wellness exams or to evaluate symptoms related to dehydration, fluid retention, or confusion.
- What does an unexpected sodium result mean?
- A result outside the standard reference pattern suggests an imbalance in body water or mineral levels, prompting a clinician to review symptoms and determine the cause.
- What is Sodium?
- Sodium is the main salt in your blood and body fluids. It controls your water balance, helps set your blood pressure, and keeps your nerves and muscles working. This test measures your level. Part of routine panels, this test helps check your hydration and kidneys, and can explain symptoms like confusion or swelling.
- What is a normal fluid balance salt range?
- A typical adult range is around Normal: 136–145 mEq/L (CLSI / clinical reference). No India-specific national reference interval is published for this parameter; your lab's printed range is the most reliable comparison. Ranges vary by lab, method and equipment — the range printed on your own report is the one that applies to your result.
Full reference guide
Other test results explained
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