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Test Code GLU Glucose, Serum

Performing Laboratory

ChristianaCare:

  • Newark Campus
  • Middletown Campus
  • Helen Graham Cancer Center
  • Wilmington Campus

Methodology

Glucose Oxidase/Hydrogen Peroxide (Trinder)

Specimen Requirements

Container/Tube:  Preferred: 4.5 mL Lithium Heparin (Mint Green top PST Gel) tube

Acceptable: 5.0 mL SST (Gold top) tube or 6.0 mL Serum (Red top) tube

Specimen:  Full tube
Collection Instructions:  Random collection time.  For pediatrics, draw blood in a green-top MICROTAINER®.

Note:  1. If glucose is the only test ordered, draw specimen in a grey-top (potassium oxalate/sodium fluoride) tube to ensure integrity.
2. Label tube with patient’s full name and 1 additional unique patient identifier such as date of birth, medical record number, emergency ID number, date and time of draw, collector’s initials, and type of specimen.

Reference Values

Fasting 

Range (mg/dL) 

0 – 1 day 

40 - 60 

2 – 364 days 

50 - 80 

1 – 17 years 

60 - 100 

≥ 18 years 

74 - 99 

Critical Values: 

Low Critical 

< 40 

High Critical 

> 400 

Day(s) Test Set Up

Monday through Sunday

Routine Turnaround Time:  8 hours

STAT Turnaround Time:  1 hour