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Test Code GLUOB Glucose, Obstetric, 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) from a fasting patient 1 hour after patient has been given 50 g of glucola, 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 1 hour after patient has been given 50 g of glucola, 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

70-140 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

Test Classification and CPT Coding

82950