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Test Code CRE Creatinine, Plasma or Serum

Specimen Requirements

Submit only 1 of the following specimens:

 

Plasma
Draw blood in a green-top (lithium heparin) tube(s) or a plasma gel tube(s). Spin down and send 0.5 mL of lithium heparin plasma refrigerated.
Note:  1. Indicate plasma on request form.
2. Label specimen appropriately (plasma).

 

Serum
Draw blood in a plain, red-top tube(s) or a serum gel tube(s). Spin down and send 0.5 mL of serum refrigerated.
Note:  1. Indicate serum on request form.
2. Label specimen appropriately (serum).

Performing Laboratory

Conway Regional Clinical Laboratory Services

Reference Values

0-1 month:  0.3-0.8 mg/dL
≥1 month-1 year:  0.3-0.6 mg/dL
≥1-19 years:  0.3-1.0 mg/dL
≥19 years:  0.6-1.3 mg/dL

Critical value (automatic call-back):  >7.4 mg/dL

Methodology

Kinetic Alkaline Picrate

Day(s) Test Set Up

Monday through Sunday

Available STAT

Test Classification and CPT Coding

82565