Albumin/Creatinine Ratio
Use
The Albumin/Creatinine Ratio test is useful for calculating the albumin concentration per creatinine and assessing the potential for early onset of nephropathy in diabetic patients using random urine specimens. Diabetic nephropathy is characterized by proteinuria, and increases in albumin excretion can indicate the development of nephropathy in those destined to have this complication. This test allows for timely interventions to delay or prevent nephropathy by monitoring albuminuria levels.
Special Instructions
This test is only orderable as part of a profile. For more information, see ALBR / Albumin, Random, Urine and RALB / Albumin, Random, Urine.
Limitations
Urine collected during menses may be contaminated with blood, increasing albumin levels, thus collection during this time should be avoided. Heavy exercise can also temporarily increase albumin excretion. Additionally, bilirubin at levels of 20 mg/dL can reduce creatinine levels by 15-20%, which might affect the accuracy of the ratio calculation.
New York Approved
Methodology
Other
Biomarkers
LOINC Codes
- 9318-7
- 9318-7
Result Turnaround Time
1 day
Related Documents
For more information, please review the documents below
Specimen
Urine
Volume
Not provided
Minimum Volume
Not provided
Collection Instructions
Only orderable as part of a profile. For more information see ALBR / Albumin, Random, Urine RALB / Albumin, Random, Urine.
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 |