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HelpTest Code LAB20688 Glucose Tolerance 2 Hr OB 75 gm Load
Department
CHEMISTRY
Collection Requirements
Non-Standard 2 hour OB screen8 hour fast is required
Test includes a Fasting draw, 75 gram glucose load and a 2 Hour glucose draw.
Primary Collection Container
Green PST (Lithium Heparin)
Transport
Plasma refrigerated
Preferred Transport Temperature
Refrigerated
Processing
Centrifuge and refrigerate.Separate from cells if testing is delayed more than 2 hours.
Deliver to Chemistry ASAP.
Stability
Refrigerated: 72 hours
Minimum Testing Volume
0.5 mL
Reference Range
By report
Methodology
Roche/Hitachi cobas c systems Enzymatic reference method with hexokinase.
Performed
Sunday – Saturday
Reported
As completed
CPT Codes
82947, 82950
Unacceptable Conditions
Gross hemolysis.Delay in separating cells from plasma.