Creatinine, Quant, (24 HR Urine)
Order Code:
24UCR
Test Summary
Creatinine is the endproduct of creatine metabolism. Creatine is present primarily in muscle and the amount of creatinine produced is related to total skeletal muscle mass. Daily creatinine production is fairly constant except when there is massive injury to muscle. The kidneys excrete creatinine very efficiently and blood levels and daily urinary excretion of creatinine fluctuates very little in healthy normal people. Since blood and daily urine excretion of creatinine shows minimal fluctuation, creatinine excretion is useful in determining whether 24-hour urine specimens for other analytes (e.g., protein) have been completely and accurately collected.
Aliases
- 24 hour Urine Creatinine
- Creatinine, 24 HR Urine
Specimen Collection
Special Instructions
N/A
Preferred Specimen
24 hour urine specimen (minimum 1 mL). No preservative necessary
Minimum Volume
2 mL
Instructions
Transport 24 hour urine container in sealed plastic bag
Patient Preparation
N/A
Storage
24-HR. Urine Collection Container
Transport Temperature
Refrigerated
Specimen Stability
- Room Temperature = 2 days
- Refrigerated = 6 days
- Frozen = 6 months
Limitations
N/A
Other Acceptable Specimens
N/A
Unacceptable Specimens
Incorrect specimen type, insufficient sample volume, improper storage conditions, exceeds specimen stability guidelines, contaminated sample.
Order Code
24UCR
EPIC (Premier) Code
LAB129
Includes
N/A
CPT Code
- 82570
Billing Code
- 300210
- 500002
CPT Statement
Methodology
Spectrophotometry (SP)
FDA Status
FDA Approved
Physician Attestation of Informed Consent
N/A
Testing Laboratory
CompuNet Clinical Laboratories, LLC
2308 Sandridge Drive
Moraine OH, 45439
2308 Sandridge Drive
Moraine OH, 45439
Department
Chemistry
Reference Range
All: 0.8-1.8 GM/24 HR
Setup Schedule / Expected Turnaround Time
Daily; Report available: Within 1 day of set up
Specimen Collection
Special Instructions
N/A
Preferred Specimen
24 hour urine specimen (minimum 1 mL). No preservative necessary
Minimum Volume
2 mL
Instructions
Transport 24 hour urine container in sealed plastic bag
Patient Preparation
N/A
Storage
24-HR. Urine Collection Container
Transport Temperature
Refrigerated
Specimen Stability
- Room Temperature = 2 days
- Refrigerated = 6 days
- Frozen = 6 months
Limitations
N/A
Other Acceptable Specimens
N/A
Unacceptable Specimens
Incorrect specimen type, insufficient sample volume, improper storage conditions, exceeds specimen stability guidelines, contaminated sample.
Result Information
Methodology
Spectrophotometry (SP)
Testing Laboratory
N/A
Reference Range
All: 0.8-1.8 GM/24 HR
Setup Schedule / Expected Turnaround Time
Daily; Report available: Within 1 day of set up