The effect of pregnancy on glucose metabolism is to:
a. Enhance the action of insulin, creating a risk of hypoglycemia.
b. Cause a woman to convert excess glucose to fat.
c. Antagonize insulin, which causes serum glucose to rise.
d. Stimulate the storage of excess glucose in the liver.
ANS: C
Rising levels of maternal hormones during the second and third trimesters antagonize insulin. Therefore, insulin is less able to facilitate glucose metabolism. The result is a rise in serum glucose.
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