A kidney function blood test can provide information about how well your kidneys are working or if they are under stress. The test measures the levels of a number of substances in your blood including minerals, electrolytes, proteins, waster products and glucose.
What is the function of your kidneys?
Your kidneys play an important role in eliminating wastes and helping to regulate the amount of water and electrolytes released in your pee (urine).
- This allows your kidneys to maintain normal chemical balance in the body.
- Among the important substances the kidneys help to regulate are sodium, potassium, chloride, bicarbonate, calcium, phosphorus and magnesium.
- The right balance of these substances is critical.
- When your kidneys are not working properly, the concentrations of these substances in the blood may be abnormal and waste products and fluid may build up to dangerous levels in the blood, creating a life-threatening situation.