Laboratory test
Sodium (Na)
Test code · БХ.031
Sodium is the main electrolyte in extracellular fluid and helps maintain fluid balance and normal nerve and muscle function.
- Specimen
- Heparinised whole blood
- Turnaround time
- 1–2 days
Collection points for the selected city
About the test
Sodium is the main electrolyte in extracellular fluid and helps maintain fluid balance and normal nerve and muscle function. The test helps assess abnormal sodium concentrations caused by changes in water intake or loss, kidney disease and endocrine conditions. The result is often considered together with other electrolytes and osmolarity.
Sodium concentration is not the same as the amount of salt consumed. Both high and low results may primarily relate to disturbed fluid balance. The doctor assesses the result together with symptoms, medical history and other investigations. The reference values of the individual laboratory are used for comparison, and changes over time are considered during follow-up.
Why it is ordered
- Assess sodium concentration.
- Clarify fluid and electrolyte disorders.
How to prepare
Before taking the test, check the preparation and specimen collection requirements with the laboratory. Tell your doctor about medicines and recent treatment. Do not stop prescribed medicines on your own.
Where to have the test
All collection pointsCheck whether the test can be taken at your chosen collection point.
Happy Clinic
Rasul Dent
We will help you prepare for your visit
We will answer questions about services and the testing process.