Colorectal Cancer Screening Endoscopic Procedure Type (Colonoscopy)
This test involves examining the inside of your colon (large intestine) using a flexible tube with a camera. It helps doctors check for signs of colorectal cancer or precancerous changes.
["A colonoscopy can detect early signs of colorectal cancer and help prevent serious health issues by removing polyps before they become cancerous."]
Key facts at a glance
- LOINC
- 112012-0
- Short code
- Resecton type Colon Endscpy
- Synonyms
- Resecton type Colon Endscpy
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- endoscopy
- Specimen volume
- 5 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 4–24 hours
- Order
- routine
What Is a Colonoscopy Used For?
A colonoscopy is primarily used for colorectal cancer screening, diagnosing symptoms like unexplained abdominal pain, changes in bowel habits, or blood in stool, and monitoring conditions like inflammatory bowel disease. It can also remove polyps or obtain tissue samples for biopsy if needed.
Procedure Preparation
Before your colonoscopy, you’ll need to prepare by following a clear-liquid diet and taking laxatives to empty your bowels. This ensures a clear view of your colon during the procedure. You may also receive sedation to help you relax.
During the Procedure
The procedure involves inserting a colonoscope—a thin, flexible tube with a light and camera—through your rectum into your colon. A doctor will guide it through your colon while you lie on your side. You may feel mild discomfort, but sedation helps keep you comfortable.
What to Expect After the Procedure
After the procedure, you’ll rest for a short time before going home. You may experience mild bloating, gas, or cramping, but these symptoms usually pass within a few hours. Avoid driving or operating heavy machinery until fully sober from sedation.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Colorectal cancer is often detected early through screening, which significantly improves treatment outcomes. Colonoscopies can identify precancerous polyps, allowing for removal before they develop into cancer. Regular screening is crucial for early detection and prevention.
Short name
Colonoscopy Type
Frequently asked questions
Why is this test important?
How often should I get this test?
What are the risks of a colonoscopy?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy