Which items among the seven urine and kidney function tests are the most important to check?

Renal function tests in urine typically focus on indicators such as serum creatinine, urinary protein, and blood urea nitrogen, which can help reflect kidney function.

1. Serum Creatinine

Serum creatinine refers to the level of creatinine in the blood, a byproduct of muscle metabolism. After physical activity, muscles produce creatinine, which is primarily filtered from the blood by the glomeruli in the kidneys. If test results show elevated creatinine levels beyond the normal range, it indicates reduced glomerular filtration function and impaired kidney function. Treatment under medical supervision may include oral medications such as Shenshuaining tablets or Uremic Clearance tablets.

2. Urinary Protein

Urinary protein refers to the amount of protein in the urine. The normal value is less than 150 mg/L. Levels exceeding this threshold suggest a dysfunction in the kidney's filtration capacity.

3. Blood Urea Nitrogen (BUN)

Blood urea nitrogen is a substance found in blood plasma and is also filtered by the glomeruli. Elevated BUN levels usually indicate diminished glomerular filtration function.

In addition, urinary immunoglobulin G (IgG) can also be used to assess kidney function. Levels above the normal range in urine suggest kidney damage.