Faecal fat analysis is a diagnostic test used to evaluate fat malabsorption in the digestive system.

Here's a structured guide to understanding faecal fat analysis:

What is being analysed?

Faecal fat analysis measures the amount of fat excreted in the stool over a specified period. It helps assess fat absorption and digestive function in the gastrointestinal tract.

How is it used?

Faecal fat analysis is used to diagnose conditions such as malabsorption syndromes, pancreatic insufficiency, coeliac disease, and other gastrointestinal disorders that affect fat absorption.

Why perform the analysis?

The analysis is performed to identify the cause of gastrointestinal symptoms such as chronic diarrhoea, steatorrhoea (fatty stools), weight loss, and nutritional deficiencies.

When to perform the analysis?

Faecal fat analysis is typically recommended if a patient presents symptoms suggestive of fat malabsorption or if other diagnostic tests indicate possible gastrointestinal disorders.

What sample is required?

A stool sample collected over a 72-hour period is required for faecal fat analysis.

Is any prior preparation necessary?

No special preparation is usually required for faecal fat analysis. However, it's essential to follow any specific instructions provided by the healthcare provider regarding diet and medication restrictions.

What are the normal values?

The normal values for faecal fat excretion are generally less than 7 grams per 24 hours.

What do altered values mean?

Elevated faecal fat excretion indicates fat malabsorption, which may be due to conditions such as pancreatic enzyme deficiency, bile acid malabsorption, coeliac disease, inflammatory bowel disease, or intestinal infections. Treatment aims to address the underlying cause of fat malabsorption and may include dietary modifications, enzyme replacement therapy, or medications to manage specific conditions.

In conclusion, faecal fat analysis is a valuable tool for diagnosing fat malabsorption and underlying gastrointestinal disorders. If you experience persistent gastrointestinal symptoms, consult with your healthcare provider for proper evaluation and management.