Creatinine
Test Code
CREAT
Description
Creatinine - Serum creatinine is useful in the evaluation of kidney function and in monitoring renal dialysis. A serum creatinine result within the reference range does not rule out renal function impairment: serum creatinine is not sensitive to early renal damage since it varies with age, gender and ethnic background. The impact of these variables can be reduced by an estimation of the glomerular filtration rate using an equation that includes serum creatinine, age and gender.
Collect
Plain red top or SST tube.
Pediatric Collection
Minimum volume: 0.1 mL serum
Storage Transport Temp
Offsite: Send frozen serum Priority Overnight via FedEx and in a well insulated container on dry ice.
Stability
Stability after cell separation:
8 hours at room temperature
24 hours refrigerated at 2-8°C
>24 hours frozen at -20°C
Performed
Monday - Friday
Methodology
Modified Rate Jaffe
Turnaround Time
4 hour routine, 1 hour STAT
Department
Core Lab
Synonyms
Jaffe (Creatinine, Serum);CRETX
Study Offerings
Not offered
Reference Interval
| Creatinine, Serum |
Human |
|
|
Male |
Female |
|
|
mg/dL |
||
|
Newborn - 29 days |
0.3-0.8 |
0.3-0.8 |
|
31 days - 11 months |
0.3-0.6 |
0.3-0.6 |
|
1 year - 18 years |
0.3-1.0 |
0.3-1.0 |
|
19+ years |
0.5-1.3 |
0.5-1.3 |
CPT Code
82565
New York Approved
FDA Approved or Cleared
FDA
Approved or Cleared