Question

When and how is OGTT done for pregnancy:

a. 24-28 weeks, fasting glucose only
b. 18-20 weeks, 2-hour postprandial glucose
c. 24-28 weeks, 1-hour glucose challenge test
d. 12-16 weeks, fasting and postprandial glucose

Answer 1

The OGTT for pregnancy is typically done between 24-28 weeks to assess glucose metabolism and detect gestational diabetes mellitus. It involves fasting, consuming a glucose drink, and measuring blood glucose levels at specific intervals. The correct answer for this question is option c: 24-28 weeks, 1-hour glucose challenge test.

Step-by-step explanation:

The OGTT (Oral Glucose Tolerance Test) for pregnancy is typically done between 24-28 weeks. It is done to assess the pregnant woman's ability to metabolize glucose and detect gestational diabetes mellitus. During the OGTT, the patient is required to fast for at least 8 hours, and then a blood sample is taken to measure the fasting glucose level.

After the fasting glucose is measured, the patient is given a glucose drink containing a specific amount of glucose. Blood samples are taken at different time intervals (typically 1 hour, 2 hours, and sometimes 3 hours) after consuming the glucose drink to measure the blood glucose levels. These postprandial glucose levels are used to determine if the patient is able to effectively process glucose or if she has gestational diabetes mellitus.

In the case given, the correct answer would be option c: 24-28 weeks, 1-hour glucose challenge test, because it refers to the OGTT for pregnancy at the specified time frame.