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HelpTest Code LAB4087 GLUCOSE PREGNANCY CHALLENGE
Specimen Type
Preferred Specimen: Lithium Heparin Plasma (Mint Green Top, Dark Green Top)
Alternative Specimen: Serum (SST, Gold, Corvac, Tiger, Red Top Tube) Sodium Flouride (Gray Top Tube)
Collection Instructions
Collect specimen 1 hour after 50 gram glucose load.
Specimen Volume
1 mL
Minimum Volume
0.5 mL
Turnaround Time
STAT: 1 hour after receiving all specimens
Routine: 4 hours
Test Schedule
Daily
Sample Stability
Refrigerated: 3 days if separated from the cells within 30 minutes of collection
Method
Hexokinase
Reference Ranges
Glucose,1 hr, pregnant LT 130 mg/dL
Test Components
Glucose-1 hr (PREG), mg/dL.
CPT Codes
82950