Lab test
Crohn's Disease (CD) Test
Crohn's Disease (CD) Test is a laboratory test you can request directly. This test helps evaluate for Crohn's disease, a type of inflammatory bowel disease. It may be used to support diagnosis or monitor existing inflammation.
What this test is
The Crohn's Disease (CD) Test is a laboratory analysis that looks for specific markers in your body associated with inflammation. It is often used as part of a broader evaluation for gastrointestinal conditions.
What it measures
- C-reactive protein (CRP) — a general marker of inflammation
- Fecal calprotectin — a marker of intestinal inflammation
- Complete blood count (CBC) — evaluates red blood cells, white blood cells, and platelets
- Erythrocyte sedimentation rate (ESR) — another general marker of inflammation
What the test involves
This test typically requires a blood sample. A healthcare professional will draw blood from a vein in your arm using a needle.
Why it is often ordered
Clinicians may order this test to help identify the cause of unexplained abdominal pain, diarrhea, or weight loss. It can also be used to assess the level of inflammation in individuals with known inflammatory bowel disease.
Preparation
Please follow any specific preparation instructions provided by the laboratory where you will have your sample collected. Some tests may require fasting.
How results are reported
Your test results will be sent to you and your ordering clinician. Reference ranges, which indicate what is considered typical, vary between laboratories.
Before you go
- Lab's specific preparation instructions
- Where to go for sample collection
- How and when results will be delivered
FAQ
Frequently asked questions
What is Crohn's disease?
Crohn's disease is a chronic inflammatory condition that can affect any part of the gastrointestinal tract, from the mouth to the anus. It is a type of inflammatory bowel disease (IBD).
How is Crohn's disease diagnosed?
Diagnosis of Crohn's disease is typically made through a combination of medical history, physical examination, laboratory tests, imaging studies, and endoscopic procedures.
Can this test confirm a Crohn's disease diagnosis?
This test provides information that can help a clinician in the diagnostic process. A diagnosis is made based on a comprehensive evaluation of all findings, not solely on one test result.
How long does it take to get results?
The typical turnaround time for this test is 1-3 business days after the sample is collected. This can vary depending on the laboratory.
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Locations
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