What is this test?
UACR compares urine albumin with urine creatinine in the same spot sample. The ratio partly corrects for how dilute or concentrated the urine is and helps detect early kidney damage.
Why might it be ordered?
- For kidney screening and monitoring in diabetes or high blood pressure.
- To confirm and follow persistent albumin leakage.
What sample is needed?
A first-morning spot urine sample is often preferred, although the laboratory may accept another random sample. Follow its instructions.
How should you prepare?
Avoid strenuous exercise beforehand and report fever, urinary infection, menstruation or acute illness. These can temporarily increase albumin.
How should you understand the result?
A raised UACR usually needs confirmation in repeat samples because albumin varies from day to day. It is interpreted with eGFR, blood pressure and clinical context.
Sources and editorial status
This patient-facing text is an editorial draft. It should be approved by a laboratory physician before official publication.