72 Hour Fecal Fat, also called fecal fat, measures the amount of fat in a stool sample. Excess fecal fat (termed steatorrhea) may be an indication that a person’s digestive system is not working properly and/or that the individual has a condition affecting the digestion of food and absorption of nutrients (malabsorption).
The normal range for fecal fat testing is 2 to 7 grams over a 24-hour period.
A positive qualitative fecal fat test or an increased amount of fat in a 72-hour quantitative fecal fat test indicates that fat is likely not being absorbed normally.
A negative qualitative fecal fat test does not necessarily rule out malabsorption, so it may be followed up with a quantitative test.
In a 72-hour fecal fat test, a low level of fecal fat generally indicates that the person tested is digesting and absorbing fats normally and suggests that the symptoms being experienced are likely due to another cause.
Keywords: Qualitative or Quantitative Stool Fat; Stool Lipids; 72 Hour Fecal Fat; Fat Stain Oil Red O; Fat; Feces; Fecal Qualitative or Quantitative.