Glucose, Plasma, Serum, or Spinal Fluid

Test Code

GLU

Alias/See Also

Serum Glucose
Plasma Glucose
CSF Glucose

CPT Codes
82947

Preferred Specimen

Submit only 1 of the following specimens: Plasma
Draw blood in a green-top (lithium heparin) tube, purple-top (EDTA) tube, or a grey-top (potassium oxalate/sodium fluoride) tube. Spin specimen down and send 0.5 mL of plasma. Separate from cells as soon as drawn if not placed in grey-top (potassium oxalate/sodium fluoride) tube.
Note: 1. Indicate plasma.
2. Label specimen appropriately (plasma).
Serum
Draw blood in a plain, red-top tube. Spin specimen down and send 0.5 mL of serum. Separate from cells as soon as drawn if not placed in grey-top (potassium oxalate/sodium fluoride) tube.
Note: 1. Indicate serum.
2. Label specimen appropriately (serum).
Spinal Fluid
0.5 mL of spinal fluid in a plastic vial.
Note: 1. Indicate spinal fluid.
2. Label specimen appropriately (spinal fluid).

Transport Temperature

Refrigerate-Plasma, SerumAmbient-Spinal Fluid

Methodology
Enzymatic

Setup Schedule

Monday through Sunday

Reference Range

PLASMA OR SERUM

70-110 mg/dL

Critical values

0-12 years: ≤40 mg/dL or ≥200 mg/dL

Adults: ≤40 mg/dL or ≥500 mg/dL

SPINAL FLUID

40-70 mg/dL

Performed By
North Mississippi Medical Center Pathology Department

Performing Laboratory
NMMC Pathology Department

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.