The threshold for PN indication in fistulas is greater than 500 mL/day.

The threshold for PN indication in fistulas is greater than 500 mL/day.

• A. True
• B. False
• C. Only if malnourished
• D. Only if infection present

Answer: (A)

In fistulas, the amount of fluid and nutrients lost through the fistula directly drives nutrition decisions. When the fistula output is high, the losses are unlikely to be compensated by oral or enteral feeding alone, so parenteral nutrition is used to maintain energy, protein, and fluid/electrolyte balance and to support healing. The commonly cited threshold is fistula output over 500 mL per day, at which PN is typically indicated to prevent malnutrition and dehydration. If the output is lower, enteral nutrition (often advanced distal to the fistula) can often meet needs, reducing or avoiding the need for PN. Malnutrition or infection can influence overall management, but the guideline for initiating PN based on output remains the volume threshold.

In fistulas, the amount of fluid and nutrients lost through the fistula directly drives nutrition decisions. When the fistula output is high, the losses are unlikely to be compensated by oral or enteral feeding alone, so parenteral nutrition is used to maintain energy, protein, and fluid/electrolyte balance and to support healing. The commonly cited threshold is fistula output over 500 mL per day, at which PN is typically indicated to prevent malnutrition and dehydration. If the output is lower, enteral nutrition (often advanced distal to the fistula) can often meet needs, reducing or avoiding the need for PN. Malnutrition or infection can influence overall management, but the guideline for initiating PN based on output remains the volume threshold.