| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
CREATININE CLEARANCE
MessagePlease provide patient height and weight. If sending an aliquot of sample, MUST include total volume.
Test Code
NCRCL
CPT Codes
82575
Includes
Includes: Height, Weight, BSA (body surface area), Total volume, Serum creatinine, Urine creatinine, and Creatine clearance.
Preferred Specimen
2 containers:
- 1 Gold tube (gel separator) AND
- 24 Hour Urine Container without preservative (aliquot or transfer urine into a transfer tube and note the total volume)
Minimum Volume
- 10 mL urine aliquot and
- 0.5 mL serum
Other Acceptable Specimens
or 2 containers:
- 1 Green tube (Lithium Heparin) and
- 24 Hour Urine Container without preservative (aliquot or transferurine into a transfer tube and note the total volume)
Instructions
- Mix the urine specimen well and measure the 24-Hour volume
- RECORD THE TOTAL VOLUME
- Aliquot 20 mL of urine into urine tube or sterile container
- Centrifuge blood tube(s) for complete separation of plasma/serum and red cells
- If whole blood was collected, aliquot plasma
- Refrigerate both urine and serum/plasma specimens until tested
Transport Temperature
Refrigerate
Specimen Stability
2-8°C up to 4 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Incomplete collection
Methodology
Enzymatic Rate
Setup Schedule
M, T, W, Th, F, Sa, Sun
Report Available
Within 24 hours of receipt at the performing laboratory.
Reference Range
| Creatinine Urine 24hr | 0.7-1.6 G/24 hr |
| Creatinine | 0.6-1.2 mg/dL |
| Creatinine Clearance | 71-151 mL/min |
| eGFR Non-African American | >60 |
| eGFR African American | >60 |
Clinical Significance
Used in the diagnosis and treatment of renal diseases, in monitoring renal dialysis, and as a calculation basis for measuring other urine analytes.
Performed By
Alverno Laboratories
Performing Laboratory
Alverno Central Lab
NCHB1 (Chemistry, Beckman AU)
Last Updated: June 8, 2023
