Which scenario would best reflect a Medicare HPN eligibility criterion?

Which scenario would best reflect a Medicare HPN eligibility criterion?

• A. Bowel resection resulting in 5 feet small bowel beyond the ligament of Treitz
• B. GI losses of 10% of oral intake
• C. Able to meet nutrition by oral intake with dietary adjustments
• D. No bowel rest required

Answer: (A)

The key idea is that Medicare coverage for home parenteral nutrition is for patients with intestinal failure—meaning the gut cannot absorb enough nutrients to meet needs and the patient cannot rely on oral/enteral intake alone. When only a limited portion of the small intestine remains, the absorptive surface is too small to meet energy and nutrient requirements, so parenteral nutrition becomes necessary. Having about five feet (roughly 150 cm) of small bowel remaining beyond the ligament of Treitz represents a substantial loss of absorptive surface. In many practical and exam contexts, this level of residual small bowel length is around the threshold where oral/enteral intake alone may no longer suffice, making ongoing parenteral nutrition appropriate. This scenario best matches an intestinal failure situation that Medicare would consider eligible for home PN. The other options describe scenarios where most or all nutrition can be met by oral intake, or where there is no need for bowel rest, which do not reflect intestinal failure requiring parenteral support.

The key idea is that Medicare coverage for home parenteral nutrition is for patients with intestinal failure—meaning the gut cannot absorb enough nutrients to meet needs and the patient cannot rely on oral/enteral intake alone. When only a limited portion of the small intestine remains, the absorptive surface is too small to meet energy and nutrient requirements, so parenteral nutrition becomes necessary.

Having about five feet (roughly 150 cm) of small bowel remaining beyond the ligament of Treitz represents a substantial loss of absorptive surface. In many practical and exam contexts, this level of residual small bowel length is around the threshold where oral/enteral intake alone may no longer suffice, making ongoing parenteral nutrition appropriate. This scenario best matches an intestinal failure situation that Medicare would consider eligible for home PN.

The other options describe scenarios where most or all nutrition can be met by oral intake, or where there is no need for bowel rest, which do not reflect intestinal failure requiring parenteral support.