Test Code GTT5 Glucose Tolerance Test [5 Hour], Serum/Plasma
Preferred Specimen
Serum (SST)
Alternate Specimen
Plasma (Sodium fluoride/potassium oxalate - Gray Top) is recommended if removal from cells will be delayed.
Specimen Collection Instructions
Collect fasting, 1 hour, 2 hour, 3 hour, 4 hour and 5 hour specimens.
Serum and Plasma samples should be centrifuged and removed from cells as soon as possible but no longer then 4 hours from collection.
Specimen Volume
1.0 mL
Transport
Routine courier pick-up
Department
Chemistry
Methodology
Enzymatic
Stat Turn-around Time
N/A
Routine Turn-around Time
1 Day
Reference Ranges
See Report