Albumin, 24-Hour Urine with Creatinine
Test code
CPT code(s)*
Details
Includes
CPT code 81050 may be added at an additional charge for volume measurement
Methodology
Turbidometric
Specimen requirements | |
|---|---|
| Patient preparation | None Specified |
| Preferred specimen(s) | 5 mL urine aliquot from a well-mixed 24-hour urine collection - no preservative |
| Alternative specimen(s) | Urinalysis transport tube (yellow-top, blue fill line, preservative tube) |
| Minimum volume | 2 mL |
| Collection instructions | Specify 24-hour total volume on container and test requisition. Note: Exercise within 24 hours, infection, fever, congestive heart failure, marked hyperglycemia, and marked hypertension may elevate urinary albumin excretion over baseline values. |
| Transport container | Plastic urine container |
| Transport temperature | Room temperature |
| Specimen stability | Room temperature: 7 days |
| Reject criteria | Acid preserved urine |
Reference Range(s)
| Albumin, 24 hour urine | <30 mg/24 h |
| Albumin, 24 hour urine | <20 mcg/min |
Creatinine, 24-Hour Urine
| <3 Years | Not established |
| 3-8 Years | 0.10-0.80 g/24 h |
| 9-12 Years | 0.20-1.40 g/24 h |
| 13-17 Years | 0.40-1.90 g/24 h |
| >17 Years | 0.50-2.15 g/24 h |
The ADA defines abnormalities in albumin excretion as follows:
| Category | Result (mg/24 h) | Result (mcg/min) |
| Normal | <30 | <20 |
| Microalbuminuria | 30-299 | 20-199 |
| Clinical Albuminuria | ≥300 | ≥200 |
Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.
*The CPT codes provided are based on AMA guidance and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.
This material contains content from LOINC® (http://loinc.org). The LOINC Table, LOINC Table Core are copyright © 1995-2019, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license.
The tests listed by specialty and category are a select group of tests offered. For a complete list of Quest Diagnostics tests, please adjust the filter options chosen, or refer to our Directory of Services.