Which statement about gastrostomy tubes and pneumonia risk in ALS is true?

Which statement about gastrostomy tubes and pneumonia risk in ALS is true?

• A. Gastrostomy tubes prevent pneumonia
• B. Gastrostomy tubes have not been shown to prevent pneumonia
• C. Gastrostomy tubes guarantee improved nutrition
• D. Gastrostomy tubes cause more pneumonia

Answer: (B)

The key idea is that preventing pneumonia with a feeding tube is not guaranteed. In ALS, swallowing weakness raises pneumonia risk, and a gastrostomy tube provides direct stomach nutrition when oral intake isn’t safe. But evidence hasn’t shown that placing a gastrostomy tube reliably lowers pneumonia risk. Pneumonia in ALS is multifactorial—aspiration can still occur from reflux or microaspiration, and respiratory muscle weakness with a poor cough can allow infections to develop regardless of tube feeding. The tube can help maintain or improve nutrition for some patients, but it does not guarantee pneumonia prevention. That’s why the statement about not having proven reduction in pneumonia risk is the most accurate.

The key idea is that preventing pneumonia with a feeding tube is not guaranteed. In ALS, swallowing weakness raises pneumonia risk, and a gastrostomy tube provides direct stomach nutrition when oral intake isn’t safe. But evidence hasn’t shown that placing a gastrostomy tube reliably lowers pneumonia risk. Pneumonia in ALS is multifactorial—aspiration can still occur from reflux or microaspiration, and respiratory muscle weakness with a poor cough can allow infections to develop regardless of tube feeding. The tube can help maintain or improve nutrition for some patients, but it does not guarantee pneumonia prevention. That’s why the statement about not having proven reduction in pneumonia risk is the most accurate.