Oral rehydration therapy (ORT) is highly effective for treating secretory diarrhea because it exploits which physiological principle?
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Correct answer: Coupled sodium-glucose absorption creating an osmotic gradient for water
In many diarrheal diseases, the SGLT1 transporter remains functional. Providing both sodium and glucose ensures their co-transport into enterocytes, which draws water back into the body via osmosis, even when other secretory mechanisms are overactive.
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