TEST DIRECTORY | MIDx Labs

CREATININE, URINE (uCREA)

Used to normalize other urine analyte concentrations and assess renal handling.

LIS TEST CODE: CREAU

CPT CODE: 82570

ALIASES: uCREA

METHODOLOGY: Kinetic Alkaline Picrate

SPECIMEN:

- Type: Urine

- Container: Urine Vacutainer (Plain Yellow Top)

- Minimum Volume Required: 1 mL

- Storage/Handling: Maintain specimen at either room temperature, in the refrigerator, or in the freezer until testing can be performed.

- Stability: Room Temperature (20-25 °C): 3 days

Refrigerated (2-8 °C): 3 days

Frozen (-20 °C or colder): 2 weeks; avoid multiple freeze/thaw cycles.

- Turnaround Time: 24 hours from receipt.

Special Instructions: N/A

REJECTION REASONS: QNS, Gross Hemolysis, Gross Lipemia, Contamination, Stability Violation, Expired Container, Incorrect Container

REFERENCE RANGES:

Males & Females (mg/dL)

>= 1 year of age: Not Established

Reference intervals are not established for isolated urine creatinine results. Interpret in conjunction with MALB / Creatinine or PRO / Creatinine ratios and clinical context.