Patient's question:
During a health check-up, the urine test showed weakly positive for protein (+/—), and blood tests for liver and kidney function were normal, except for slightly elevated blood lipids. The patient has no other physical abnormalities. Later, the patient underwent multiple urine routine tests, sometimes with no abnormalities, sometimes weakly positive, and rarely 1+. How can this be resolved?Doctor's answer:
The albumin level is below normal, but albuminuria that cannot be detected by routine methods. His test has been widely valued as an important indicator for the early diagnosis of kidney damage. The measurement methods include radioimmunoassay, ELASA, etc. The most commonly used method is automated immunoturbidimetry, but the reporting methods vary. Some report based on the amount of albumin per liter of urine, while others report based on the 24-hour excretion amount. The commonly used reporting method is the albumin/creatinine ratio.