Sign in →

Test Code GLU2PP Glucose, 2 Hour, Postprandial, Plasma or Serum

Specimen Requirements

Submit only 1 of the following specimens:

 

Patient Preparation
1. Patient should eat a balanced meal or be given a measured glucose dose 2 hours prior to test.
2. Patient may have water during test.

 

Specimen Collection
Plasma
Draw blood in a green-top (lithium heparin) tube(s) or a plasma gel tube(s) from a fasting patient (2 hour). Spin down (maximum:  2 hours) and send 1 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) from a fasting patient (2 hour). Spin down (maximum:  2 hours) and send 1 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

<145 mg/dL 

Critical values (automatic call-back):  <40 mg/dL or >450 mg/dL

Note:  Glycolysis due to failure to refrigerate specimen or to send it to the laboratory immediately may result in false-negative results.

Methodology

Hexokinase, Ultraviolet

Day(s) Test Set Up

Monday through Sunday

Available STAT

Test Classification and CPT Coding

82947