Check out today’s Step 1 Qmax Question Challenge.
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A novel drug is developed that specifically acts only on the intestinal epithelium. This new drug is found to prevent the absorption of glucose and galactose from the lumen, but does not affect the absorption of fructose.
Based on the new drug’s effects, which of the following is the most likely mechanism of action?
A. It targets insulin regulation of glucose transporters
B. It targets the GLUT-2 transporter
C. It targets the GLUT-4 transporter
D. It targets the GLUT-5 transporter
E. It targets the sodium-potassium pump within intestinal cells
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