Creatinine

Message

After centrifugation, if not in gel barrier tube, pour off plasma or serum into an aliquot tube.

Test Code

LAB66

CPT Codes
82565

Preferred Specimen

Lithium Heparin (PST)

Minimum Volume

4.5 ml (600 ul min) lithium heparin (green); alternate-SST (gold) or Red (no additive) tubes

Other Acceptable Specimens

Gold (SST)

Instructions

Spin PST and SST and send to lab

Transport Container

1 ml (200 ul minimum) plasma; alternate-serum

Transport Temperature

Room temp

Specimen Stability

Separated from cells: 7 days refrigerated and indefinitely when frozen

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Icteric: >20 mg/dL bilirubin, Hemolysis: >500 mg/dL hemoglobin, Lipemia: >700 mg/dL triglycerides

Methodology
Jaffe rate method

Setup Schedule

Mon-Sun

Reference Range

Serum/Plasma Male Reference Range = 0.50 – 1.20 mg/dL
Serum Plasma Female Reference Range = 0.40 – 1.00 mg/dL

Clinical Significance

Measurements of creatinine are used in the diagnosis and treatment of renal disease

Performing Laboratory
Piedmont Athens Regional

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.