Albumin, Random, Urine
Use
This test is useful for assessing the potential for early onset of nephropathy in diabetic patients using random urine specimens. Diabetic nephropathy is characterized by proteinuria; however, before overt proteinuria develops, albumin excretion can increase. Identifying small increases in urinary albumin excretion (microalbuminuria) is crucial as it can delay or prevent the development of nephropathy with proper therapeutic measures such as aggressive blood pressure maintenance and glucose control. The Random Albumin to Creatinine Ratio is a valid screening tool for diabetic renal involvement.
Special Instructions
Not provided.
Limitations
Urine collected during menses may contain excess albumin due to blood contamination and should be avoided. Heavy exercise may increase albumin excretion, and bilirubin at high levels may reduce creatinine measurement accuracy.
New York Approved
Methodology
Immunoassay (Immunoturbidity)
Biomarkers
LOINC Codes
- 9318-7 - Albumin/Creat Ur
- 89999-7 - Microalbumin Ur DL<=3.0 mg/L-mCnc
- 2161-8 - Creat Ur-mCnc
- 9318-7 - Albumin/Creat Ur
Result Turnaround Time
1-3 days
Related Documents
For more information, please review the documents below
Specimen
Urine
Volume
5 mL
Minimum Volume
1 mL
Container
Plastic tube
Collection Instructions
Collect a random urine specimen. No preservative.
Patient Preparation
Heavy exercise should be avoided prior to collection.
Causes for Rejection
All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 7 days |
| Refrigerated | 7 days |
| Frozen | 7 days |