Metabolism USMLE Step 1 Practice Question
A 25-year-old female with type 1 diabetes mellitus has maintained good glycemic control for several years. Recently she has gained 10 pounds and joined a group exercise program. By the end of her first 1-hour aerobics session, she is dizzy, nauseated, and feels faint. Which underlying mechanism is the most likely explanation for this episode?
Answer choices
- AStimulation of glycogenolysis in the liver
- BTranslocation of GLUT4 to the cell membranes of myocytesCorrect answer
- CStimulation of gluconeogenesis in the liver
- DInadequate delivery of oxygen to the muscle
- EStimulation of glycogenolysis in the muscle
- FInhibition of hepatic glucose output due to excessive insulin secretion
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