True about fat absorption
A. Fat in stool > 6 gm/day indicate malabsorptionB. C-glycine test is most sensitive test
C. Major fat absorption occurs in proximal intestine
D. Steatorrhea means stool fat> 10 gm/day
E. Steatorrhea is increased fat in stools >20gm/day
Ans. A. Fat in stool > 6 gm/day
indicate malabsorption:
(C) Major fat absorption occurs in
proximal intestine :
· Normal fecal fat excretion is less than 6gm/day, more
than 6 gm/24 hr indicates malabsorption.
•
Fat absorption takes place in small intestine except short chain fatty acids
which is absorbed in colon
• Sudan is best for screening but gold standard is quantitative estimation of fecal fat. OraL glycin glycolate test may show bile acid malabsorption, but not best for screening.
- Steatorrhea is defined as stool fatexeeeding 7g/day
- Daily fecal averages 15-25 g with small intestine disease, often exceeds 40 gm with pancreatic disease.
• Sudan is best for screening but gold standard is quantitative estimation of fecal fat. OraL glycin glycolate test may show bile acid malabsorption, but not best for screening.
- Steatorrhea is defined as stool fatexeeeding 7g/day
- Daily fecal averages 15-25 g with small intestine disease, often exceeds 40 gm with pancreatic disease.
