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detects this sugar while avoiding
positive reaction for lactose.
Once urine sugar is detected it
warrants further investigations, which
is the 3hrs Glucose tolerance test
(GTT) using 100gms of glucose. It is
performed after an overnight fasting.
The previous 3 days patient should
have her normal meals with adequate
carbohydrates rather than avoiding it
before going for the test.
Patient is given 100gms of glucose with
200ml of water or limejuice. Blood and
urine is collected in the fasting state
and than at 1st hr, 2nd hr, 3rd hr. after
the glucose load. The values should be
less than
• Fasting-105mg/dl of glucose in blood.
• 1st hr – 190mg/dl
• 2nd hr—165mg/dl
• 3rd hr--- 145mg/dl
If any two or more values are met
or exceeded Gestational diabetes is
If the fasting blood sugar is 130mg/
dl without the glucose load there is no
need to perform GTT to confirm the
diagnosis, as it may be dangerous to
overload the patient with glucose. GTT
is done for all women with risk factors
for GD, and or women with a positive
screening test.
Patients with GD need more frequent
antenatal supervision. A diabetic diet
is the key to treatment; it is necessary
that blood sugar levels be maintained.
The diet should be nutritious for the
mother and the baby. However dieting
or starvation should be avoided. The
average daily requirement for pregnant
diabetic women is 1800-2000 calories.
The dietary restriction includes ice
creams, chocolate, sweetened drinks,
Apr/May 2014