Advanced Diagnostic Laboratories

Collect

Plain red top or SST tube.

Specimen Preparation

Onsite [NJH]: Transport to lab within 1 hour.
Offsite: Separate serum from cells within 2 hours by centrifuge and aliquot into a labeled polypropylene or similar plastic tube.
Preferred volume: 1 mL serum

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

Reported

4 hour routine, 1 hour STAT

Department

Core Lab

Synonyms

Jaffe (Creatinine, Serum);CRETX

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