CREATININE, PLASMA

 

 

Synonyms:

 

Lab Test Code:

CREAT

Test Performed In:

Chemistry (Rapid Response)

Test Methodology:

Beckman LX20, Alkaline Picrate

Reported:

STAT: 60 minutes

Routine: 2 - 4 hours

Test set up frequency: Daily

Patient Preparation:

 

Specimen Requirements:

Collect: 4 mL blood in light green top. Separate the plasma within 2 hours of collection. Serum in also acceptable.

Transport: Ambient or refrigerated.

Minimum volume: 1.0 ml plasma or serum

Specimen stability: After separation from cells: Ambient 8 hours; Refrigerated 48 hours; frozen 1 month.

Reference Values:

0.5 - 1.3 mg/dL

Critical Value (automatic call-back):

Infants (<12 months):  > 2.0 mg/dL

Additional Information:

If patient is ³ 18 years old and creatinine ³ 1.4 mg/dL, then GFR is calculated. 

Reference value for GFR calculation:  ³ 60 mL/min/1.73 sq. meter.

CPT Code(s):

82565