Electrolytes (Sodium/Potassium)
Sodium and potassium are essential electrolytes that help regulate fluid balance, nerve signalling, and muscle function. The Electrolytes Test evaluates levels of these minerals in the blood to detect imbalances that may affect heart health, kidney function, and overall hydration. This test is commonly used to assess dehydration, monitor kidney disease, detect electrolyte imbalances, and evaluate conditions affecting fluid balance, such as adrenal disorders.
Test details
Sample type
Blood
Time of day
No Specific Time Needed
Fasting required
No
Results timeframe
Within 7 days
Preparation
No special preparation required
What's measured in this test
Electrolytes
Measures salt balance for heart and muscles.
Common reasons for testing
- Assessing Dehydration or Overhydration – Identifies electrolyte imbalances caused by fluid loss, excessive water intake, or illness.
- Monitoring Kidney Function – Evaluates sodium and potassium regulation in individuals with kidney disease or kidney dysfunction.
- Heart Health and Blood Pressure Regulation – Helps assess the role of electrolytes in hypertension (high blood pressure) or irregular heart rhythms.
- Adrenal Gland Function (Aldosterone Disorders) – Screens for hormonal conditions like Addison’s disease or hyperaldosteronism, which affect sodium and potassium balance.
- Muscle Weakness, Fatigue, or Cramps – Detects electrolyte disturbances that may be contributing to nerve and muscle dysfunction.
- Medication Monitoring – Tracks electrolyte levels in individuals taking diuretics, blood pressure medications, or steroid treatments.