Quantitative examination of fecal fat can understand the function of digestion and absorption, and help diagnose diseases of the digestive system. The main source of fecal lipids is food, and some are derived from the metabolism of gastrointestinal secretions and cell detachment. The amount of total fat in the feces can be greatly increased due to the digestive or absorptive capacity of the fat.

Basic Information

Specialist classification: Digestive examination classification: feces / parasitic examination

Applicable gender: whether men and women apply fasting: not fasting

Analysis results:

Below normal:
Below normal, no clinical significance.

Normal value:
Adult: 2-5g/24h

Above normal:
Above normal, it indicates that the digestion or absorption capacity of fat is reduced, and the total amount of fat in the feces can be greatly increased, suggesting the presence of steatorrhea.

negative:

Positive:

Tips: First take a fat diet, 50-150g daily for 6 consecutive days, and collect the feces within 72h from the third day. Normal value

Adult 2 ~ 5g / 24h feces.

Clinical significance

Abnormal results:

The main source of fecal lipids is food, and some are derived from the metabolism of gastrointestinal secretions and cell detachment. The amount of total fat in the feces can be greatly increased due to the digestive or absorptive capacity of the fat.

If the total amount of fat in the feces exceeds 6g in 24 hours, it is steatorrhea.

The diseases that cause steatorrhea are:

Pancreatic diseases such as chronic pancreatitis, pancreatic cancer, pancreatic fibrocystic disease, and the like.

Hepatobiliary diseases such as obstructive jaundice are insufficient for bile secretion, and small bowel lesions such as celiac disease, Whipple's disease, and protein-losing enteropathy.

People who need to check:

People with long-term abdominal pain and symptoms of diarrhea should perform this test.

High results may be diseases: cholestatic jaundice, chronic pancreatitis, pancreatic cancer, pancreatic stone disease

Note before inspection:

The fat diet was first dosed, 50-150 g per day for 6 consecutive days, and the feces within 72 hours were collected from the third day.

Requirements for inspection:

1. Because infants and young children are not easy to get enough samples at one time, if they need to be collected separately, please temporarily store the samples in the refrigerator to avoid bacterial growth.

2. Tell the doctor whether to make a quantitative fat meal.

3. To avoid interference with the test results, do not use cotton swabs to dig.

4. Do not collect too much feces to avoid having enough specimens for inspection.

Inspection process

The fat diet was first dosed, 50-150g per day for 6 consecutive days. The feces within 72 hours were collected from the third day, and the collected specimens were mixed and weighed, and 69 g was taken out for examination.

Not suitable for the crowd

Gastrointestinal digestive dysfunction should consult a doctor.

Adverse reactions and risks

Generally no complications.