Question

During an oral glucose tolerance test the 

A. Subject is given 5–10 grams of glucose. 

B. Plasma glucose should rise by less than 10 per cent from the fasting level. 

C. Plasma insulin should rise by about 100 per cent from the fasting level. 

D. Rise in plasma glucose is less than with intravenous administration. 

E. Rise in plasma insulin is less than with intravenous administration.

Answer 1

A. False 50–100 grams of glucose are used. 

B. False It normally rises by around 50 per cent. 

C. False It rises about ten-fold from a very low fasting level. 

D. True The rise is about half as great. 

E. False Oral glucose stimulates much more release of insulin.