Albumin/Creatinine Ratio, Random Urine
Also known as: Albumin:Creatinine Ratio, Random Urine, Microalbumin
Use
Measurement of albumin levels in urine below the detection level of urine dipsticks. This test is useful in the management of patients with relatively early diabetes mellitus to assist in avoiding or delaying the onset of diabetic renal disease.
Special Instructions
This test should be performed annually on adults with diabetes and children beginning at puberty or after five years of disease duration, according to the recommendations by the American Diabetes Association. If initial urinalysis is negative for protein, albumin measurement is recommended.
Limitations
Due to the natural variability in albumin excretion into urine, at least two abnormal readings out of three measured within three to six months are necessary for a diagnostic determination. Factors such as physical exercise, infection, fever, congestive heart failure, marked hyperglycemia, and hypertension can affect albumin levels.
Methodology
Immunoassay (Immunoturbidimetric)
Biomarkers
LOINC Codes
- 9318-7
- 2161-8
- 14957-5
- 9318-7
Result Turnaround Time
1 day
Related Documents
For more information, please review the documents below
Specimen
Urine
Volume
10 mL
Minimum Volume
2 mL
Container
Plastic urine container
Collection Instructions
Collect random urine without preservatives; pH must be 4 to 8.
Storage Instructions
Room temperature
Causes for Rejection
Bloody specimen
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 7 days |
| Refrigerated | 14 days |
| Frozen | 14 days |