Is a glomerular filtration rate (GFR) of 77 ml/min normal?

Generally, a glomerular filtration rate (GFR) of 77 ml/min is considered abnormal. The specific analysis is as follows:

The glomerular filtration rate is one of the commonly used clinical indicators to assess an individual's kidney function. Under normal circumstances, the normal range for adults and children over 20 years old is 90–120 ml/min. A lower-than-normal GFR may indicate the presence of various kidney diseases, such as acute kidney injury, chronic renal failure, or diabetic nephropathy. Conversely, an elevated GFR may be associated with conditions like acromegaly or gigantism. Given that a GFR of 77 ml/min is slightly below the normal range, it suggests possible kidney dysfunction.

Results of GFR testing may be influenced by factors such as age, gender, or pregnancy. It is recommended that patients visit a hospital for further auxiliary examinations—including serum growth hormone measurement, renal ultrasound, and urine microalbumin testing—to confirm the diagnosis. Based on these results, appropriate treatment measures can then be determined.