fat absorption test

The fat absorption test refers to the examination of the fat absorption function in food. The diet formula should be scientific and reasonable during the test period, the heat and the three nutrients should be as constant as possible, and calculated by computer. The amount of fat should be supplied according to the regulations. All foods should be accurately weighed. The fat content in the diet should be accurately quantified. The fat-containing foods and cooking oil should be distributed as much as possible in 3 meals. Pay attention to the addition of medicinal charcoal or rouge at the beginning and end of the test. Red and other markers. Stir well during the measurement of feces. Basic Information Specialist classification: Digestive examination classification: other examinations Applicable gender: whether men and women apply fasting: not fasting Tips: Pay attention to the normal diet, pay attention to normal work and rest, and prevent endocrine disorders. Normal value The normal fat absorption rate is 90% to 95%, and less than 90% is abnormal in fat absorption. Clinical significance Abnormal results Digestive mechanism disorders mainly refer to indigestion of fat, sugar and protein, especially fat indigestion. Exocrine insufficiency of the pancreas is one of the more common causes of malabsorption in elderly patients. Abdominal absorption caused by pancreatic exocrine function supplementation The daily septic lipid bile salt concentration is generally mild, and the lack of bile salts affects the absorption of soluble vitamins. Acute and chronic liver diseases can be combined with the synthesis of combined bile salts. Fatal diarrhea occurs in excretory disorders. The people in need of examination suspect that the small intestine has poor function of fat absorption. Precautions Forbidden before examination: pay attention to normal diet, pay attention to normal work and rest, and prevent endocrine disorders. Requirements for inspection: The diet formula should be scientific and reasonable during the test period, the heat and the three nutrients should be as constant as possible, and calculated by computer. The amount of fat should be supplied according to the regulations. All foods should be accurately weighed. The fat content in the diet should be accurately quantified. The fat-containing foods and cooking oil should be distributed as much as possible in 3 meals. Pay attention to the addition of medicinal charcoal or rouge at the beginning and end of the test. Red and other markers. Stir well during the measurement of feces. Inspection process method: Continuous eating standard test meal, daily fat content 75g, lasting 3d, then eating fat 100g / d, for 3d, while collecting 72h feces, determination of fecal fat, such as the amount of fecal fat more than 7g or absorption rate is less than 90%, can To determine the presence of steatorrhea, the method of calculating the fat absorption rate is to take the average value of fecal fat 3d and calculate the fat absorption rate. Fat absorption rate (%) = (dietary fat - fecal fat) / dietary fat × 100. Not suitable for the crowd Inappropriate crowd: temporarily unknown.

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