Glucose tolerance test (GTT) Complete Instructions - 

This test is recommended for pregnant women in order to screen for gestational diabetes. This test may be usually recommended between the 24 and 28th week of pregnancy.

GTT-2 (2 vials)

• Two specimens will be taken
• First specimen in fasting
• Second specimen at 2 hours post consumption of glucose solution
• 250 - 300 ml of normal water is required to make a glucose solution

GTT-3 (3 vials)

• Three specimens will be taken
• First specimen in fasting
• Second specimen at 1 hour of post-glucose consumption
• Third specimen 2 hours of post-glucose consumption
• 250 - 300 ml of normal water is required to make a glucose solution

Points to remember

• Overnight fasting is required.
• Do not eat or drink anything before or after the glucose is taken.
• Only a sip of normal water can be taken if required.
• No glucose is provided by the lab.

NOTE - GTT & 24-hour urine investigations are under a special package category, and cannot be booked along with normal packages, separate booking is required.