During exercise for patients taking biguanides, what is a key consideration?

During exercise for patients taking biguanides, what is a key consideration?

• A. Avoid hydration during exercise
• B. Monitor GI discomfort and ensure hydration
• C. Increase protein intake before exercise
• D. Increase hepatic glucose production during exercise

Answer: (B)

The main idea is watching for GI side effects and staying hydrated when exercising while on metformin. Biguanides commonly cause GI upset—nausea, diarrhea, abdominal pain—especially when starting or adjusting the dose. Exercise can amplify these symptoms, so it’s important to monitor how the body tolerates activity. At the same time, maintaining adequate hydration supports fluid balance and helps prevent dehydration, which can worsen GI symptoms and, in rare cases, contribute to metabolic risks associated with biguanides. That’s why this option is the best choice: it directly addresses both common GI effects and the need for proper hydration during exercise. The other options don’t fit: hydration shouldn’t be avoided, protein timing isn’t specifically tied to metformin, and metformin actually reduces hepatic glucose production rather than increasing it.

The main idea is watching for GI side effects and staying hydrated when exercising while on metformin. Biguanides commonly cause GI upset—nausea, diarrhea, abdominal pain—especially when starting or adjusting the dose. Exercise can amplify these symptoms, so it’s important to monitor how the body tolerates activity. At the same time, maintaining adequate hydration supports fluid balance and helps prevent dehydration, which can worsen GI symptoms and, in rare cases, contribute to metabolic risks associated with biguanides. That’s why this option is the best choice: it directly addresses both common GI effects and the need for proper hydration during exercise. The other options don’t fit: hydration shouldn’t be avoided, protein timing isn’t specifically tied to metformin, and metformin actually reduces hepatic glucose production rather than increasing it.