Gastrointestinal Health Tests in Illinois

What this test is

These tests analyze various markers in your stool or blood to identify potential issues within the gastrointestinal tract. They can provide insights into digestion, absorption, and the presence of certain infections or inflammatory conditions.

What it measures

• Fecal Occult Blood — detects hidden blood in stool
• Fecal Elastase — assesses pancreatic enzyme function
• Calprotectin — indicates intestinal inflammation
• H. pylori Antigen — tests for a common stomach infection

What the test involves

Collection methods vary depending on the specific test ordered. Some tests require a stool sample collected at home, while others involve a standard blood draw performed at a collection center.

Why it is often ordered

Clinicians often order these tests to investigate symptoms like abdominal pain, changes in bowel habits, or unexplained weight loss. They can also be used to monitor known gastrointestinal conditions or screen for certain infections.

Preparation

Preparation instructions will be provided by the laboratory. It is important to follow these guidelines carefully to ensure accurate test results.

How results are reported

Results are typically reported within a few business days and will be made available to you. Reference ranges, which indicate what is considered normal, vary by laboratory and will be provided with your report.

Before you go

• Sample collection instructions
• Specimen shipping details
• Result reporting timeline