Test Code GL GLUCOSE
Additional Codes
LAB2069
Performing Laboratory
Porter Hospital Laboratory
Specimen Requirements
Specimen Type: Blood
Container/Tube: Grey top, serum gel
Also Acceptable: Tiger top (serum,gel); Green top (Lithium Heparin)
Specimen Volume: Full tube, submit 0.4 mL serum
Specimen Minimum Volume: 0.3 mL
Collection Instructions:
1. Send specimen in original tube.
2. If there is a delay in transport of >1 hour, centrifuge tube.
3. Centrifuged SERUM samples are stable for:
• 8 hours at room temperature
• 72 hours at 2-8°C
Specimen Transport Temperature
Refrigerated
Test Classification and CPT Coding
82947
Test Schedule / Analytical Time / Test Priority / Turn Around Time
Daily / 24 hours / Available STAT / Routine - 4 hours
STAT - 60 minutes
Normal Reference Values
70-99 mg/dl
Critical Values
<50 or >500 mg/dl