Fecal Elastase Test: Assessing Pancreatic Function for Digestive Health

Pancrease is an important gland in the digestive system of humans. It releases several critical enzymes that aid the smooth digestion of food. Elastase is one of them, that is involved in digesting food into components essential for body growth and repair.

While the Pancreas is responsible for the release of the Elastase enzyme, it is also found in stools, which is an indication of healthy digestive system. When the levels of the enzyme in stools are abnormal you may be diagnosed with Exocrine Pancreatic Insufficiency (EPI).

The Fecal Elastase test is used to assess the pancreatic elastase through stool test. It is an important diagnostic tool to determine the cause of EPI, guide treatment decisions, and save people from life threatening health conditions that my follow.

Understanding the Fecal Elastase Test

The faecal elastase test measures elastase levels in stool, an enzyme produced by the pancreas. It is also known as pancreatic enzymes test or stool elastase test. Elastase function is to digest fats, carbohydrates, and proteins. Pancrease releases the enzyme through a duct in to the small intestine. Pancreatic elastase is also found in stools for normal individuals.

Low elastase levels indicate exocrine pancreatic insufficiency (EPI), where the pancreas fails to release enough digestive enzymes, leading to poor fat digestion and nutrient absorption. EPI symptoms include abdominal pain, diarrhoea, and malabsorption, resulting in potential malnutrition.

Causes like Pancreatic cancer, acute pancreatitis, Crohn’s disease, diabetes, surgeries on the digestive system can also lead to EPI. So, Fecal Elastase test, beyond detecting the presence of EPI, can provide valuable information about the potential health conditions of an individual, paving way for early intervention.

How is the Fecal Elastase Test Done?

The Fecal elastase test is completely a non-invasive test. It requires only a stool sample for the purpose. For stool collection, a container or kit will be provided along with instructions on how to collect the sample. A 5g sample is expected to be fully formed, not watery.

In general, you must ensure the sample is not mixed with urine, toilet paper, or water. You need to label the container properly in the provided fields (name, collection date, and time), and close the container tightly.

Clean your hands properly after sample collection. You may also be asked to refrigerate the sample first. So, return the sample carefully as per given instructions. There will be special instructions if you want to collect the sample from diapers. Ask your provider for the same.

What is the Preparation Before the Test?

While there is no fasting required for the faecal elastase test, you may need to stop taking pancreatic enzyme supplements for at least five days before the test. They can interfere with the test results.

Stool Elastase Test Results & Interpretation

The results of the Stool Elastase test reveal the level of Elastase in your stool sample, based on which further tests or treatments are suggested.

Elastase Level (mcg/g)	Interpretation
Above 200	Normal - EPI unlikely but not completely ruled out
Below 200	Abnormal - May indicate Exocrine Pancreatic Insufficiency (EPI)

If the results of the faecal elastase test show normal levels of the enzyme, it means you may not have the EPI condition. However, it is only an indicative test. Further testing is necessary to confirm the presence of exocrine pancreatic insufficiency.

Low pancreatic elastase levels could indicate EPI. In that case, results are categorised as "moderate" or "severe pancreatic insufficiency." Here again, your healthcare provider may recommend additional tests to confirm the diagnosis and identify the underlying cause.

What More to Know

• A single stool sample is usually sufficient for the fecal elastase test- multiple samples aren't usually needed, making it more convenient than other digestive tests.
• False low results can occur in people with severe diarrhea due to sample dilution, requiring retesting when symptoms improve.
• The test specifically measures elastase-1, which is highly stable in stool and can remain measurable for several days at room temperature.
• While PERT (Pancreatic Enzyme Replacement Therapy) is the main treatment, the enzymes should be taken during or just before meals, not after, for best effectiveness.
• Small, frequent meals are recommended because they're easier for the compromised pancreas to handle than large meals.
• Certain medications, particularly proton pump inhibitors (PPIs), can affect test results and should be disclosed to healthcare providers.
• The stool elastase test can help monitor disease progression in conditions like chronic pancreatitis and cystic fibrosis.

Conclusion

While the fecal elastase test is a valuable diagnostic tool, it's important to note that mental health can be significantly impacted by EPI diagnosis. Many patients experience anxiety about eating in public or traveling due to digestive uncertainties. Support groups and counseling can be beneficial alongside medical treatment. Work with both a dietitian and mental health professional to develop coping strategies and meal plans that fit your lifestyle and social needs.