Renal Function Test Items

Jul 15, 2024 Source: Cainiu Health
Disease description:

Recently, I have been feeling that there might be something wrong with my kidneys, so I went to the hospital for kidney function tests. I would like to ask the doctor, what are the specific items included in the kidney function tests?

Doctor's answer (1)
Dr. Yang Ziqi

Kidney function tests typically include the following key components to assess the kidneys' filtration and excretion capacity:

1. Serum Creatinine: Creatinine levels in the blood are a common indicator of glomerular filtration rate. Elevated blood creatinine may suggest reduced kidney function.

2. Glomerular Filtration Rate (GFR): Calculated based on age, gender, body weight, and serum creatinine levels, GFR is the gold standard for evaluating kidney function. A value below 60 mL/min/1.73 m² may indicate kidney damage.

3. Blood Urea Nitrogen (BUN): Urea is a byproduct of protein metabolism. Elevated blood urea levels may indicate impaired kidney function.

4. Uric Acid: Excess uric acid may suggest impaired renal excretion or gout.

5. Blood Electrolytes: Such as sodium, potassium, and chloride. The kidneys regulate the balance of these ions, and abnormalities may be associated with kidney disease.

6. Acid-Base Balance Indicators (e.g., plasma pH, bicarbonate): Reflect the kidneys' ability to regulate acid-base balance in the body.

7. Urinalysis: Includes urine protein (proteinuria) and microscopic examination of urinary sediment, which can detect potential kidney inflammation or infection.