How soon after performing a glucose challenge test is a blood sample drawn?

• A. 30 minutes
• B. One hour
• C. Two hours
• D. Three hours

Answer: (B)

After performing a glucose challenge test, the blood sample is drawn one hour later. This timing is crucial because the test is designed to assess how well the body processes glucose over a specific period. In the glucose challenge test, the patient consumes a sweet drink containing a certain amount of glucose, and the measurement taken one hour later helps determine how the body responds to that spike in blood sugar.

If the blood glucose level is elevated at this one-hour mark, it may indicate a risk for gestational diabetes, prompting further testing or monitoring. The choice of one hour is standard practice for this type of screening, aligning with guidelines set by health organizations to ensure accurate assessment of glucose metabolism during pregnancy.