Microalbumin, 24 Hrs Urine

Microalbumin, 24 Hours Urine

What it is

The Microalbumin, 24 Hours Urine test measures the total amount of albumin excreted in urine collected over a 24-hour period. Albumin is a type of protein that is normally present in very small amounts in urine. Elevated levels, known as microalbuminuria, may be an early indicator of kidney damage, particularly in people with diabetes or high blood pressure.

Uses

This test is primarily used to detect early kidney disease and monitor the effectiveness of treatment in patients at risk. It is especially valuable for people with diabetes, hypertension, or cardiovascular risk factors. By measuring protein leakage over an entire day, this test provides a more accurate picture of kidney function than a single spot urine test.

Symptoms That May Lead to the Test

Often, kidney damage in its early stages does not cause noticeable symptoms. Doctors may recommend this test if you have diabetes, high blood pressure, swelling in the legs or feet, foamy urine, persistent fatigue, or a family history of kidney disease.

Abnormal Results

Microalbuminuria (30–300 mg/24 hrs): Indicates early kidney damage, which may still be reversible with treatment and lifestyle changes.

Macroalbuminuria (>300 mg/24 hrs): Suggests more advanced kidney disease and a higher risk of progression to chronic kidney disease (CKD).

Normal Results (<30 mg/24 hrs): Suggest healthy kidney function with minimal protein leakage.

Risks

The test is non-invasive and involves only collection of urine over 24 hours. There are no direct risks, but accurate results depend on complete collection of all urine during the test period and proper storage of the sample.