Test Overview
Test Methodology

Calculated

Test Usage

To assess glomerular filtration rate

Reference Range *

80 - 134 mL/min.

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Details
Days Set Up
Daily
Analytic Time

8 hours

Soft Order Code
CRCL
MiChart Code
Creatinine Clearance, 24 HR Urine (Please also order LAB712)
Synonyms
    Laboratory
    Chemical Pathology
    Section
    Automation
    Specimen Requirements
    Collection Instructions

    Collect blood in SST tube. Centrifuge, aliquot serum into a plastic vial and refrigerate. Collect 24 hour urine specimen with no preservative. Aliquot 10 ml into a plastic urine container and refrigerate. Record total 24 hour urine volume and collection dates/times on request form. Both a 24 hr urine creatinine and a serum creatinine must be ordered to obtain a calculated clearance. The serum creatinine must be drawn during the urine collection period. Note the patient's height and weight on the requisition for accurate calculation.

    Alternate Specimen
    Blood: Green top tube. Urine: Acid preservative.
    Normal Volume
    0.5 mL serum and 5 mL aliquot of 24 hour urine collection
    Minimum Volume
    0.25 mL serum and 2 mL aliquot of 24 hour urine collection
    Additional Information

    Creatinine Clearance (CRCL) is a calculated value based on serum and urine creatinine levels. There is no charge for the CRCL; the client or 3rd party will be billed for the serum and urine creatinine tests.

    Billing
    CPT Code
    82575
    NY State Approved
    No