Colonoscopy with Longitudinal Pharyngeal and Rectal Endoscopic Evaluation (HEDIS 2020 Screening)
This test involves a procedure to examine your digestive tract for signs of disease, including polyps or abnormalities in the colon, pharynx, and rectum. It helps detect conditions like colorectal cancer early.
["A colonoscopy may prevent serious health issues by identifying and removing precancerous growths early."]
Key facts at a glance
- LOINC
- 94140-1
- Short code
- HEDIS 2020 CT Colongrphy
- Synonyms
- HEDIS 2020 CT Colongrphy
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- 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
Why This Test Is Done
A colonoscopy is often recommended as part of routine screening, especially for individuals at higher risk of colorectal cancer. Your doctor may also suggest it if you have symptoms like unexplained weight loss, persistent abdominal pain, or changes in bowel habits. This procedure helps assess the health of your digestive tract and can detect early signs of disease that might not be visible through other tests.
What to Expect Before the Procedure
Before the colonoscopy, you’ll likely need to prepare by following a clear-liquid diet and possibly taking laxatives to empty your bowels. You may also receive a sedative to help you relax during the procedure. Your doctor will provide specific instructions tailored to your needs.
During the Procedure
The procedure is performed by a gastroenterologist using a flexible tube with a camera (endoscope). The doctor will insert the endoscope through your rectum and slowly advance it through your colon. You may feel mild discomfort, but you’ll be fully sedated, so you won’t feel pain. If polyps are found, they may be removed during the procedure.
After the Procedure
After the procedure, you’ll rest for a short time before being monitored until you’re fully awake. You may experience mild cramping or bloating, but these symptoms usually resolve within a few hours. Avoid driving or operating heavy machinery until fully sober, as you’ll be sedated.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Short name
Colonoscopy Screening
Frequently asked questions
This test is crucial for early detection of colorectal cancer and precancerous conditions, which can be treated before they become life-threatening. Regular screenings significantly reduce the risk of colorectal cancer-related deaths.
No, this is not a blood test or lab draw. It is a diagnostic endoscopic procedure requiring preparation and sedation.
Yes, if polyps or abnormal tissue are found, follow-up tests or treatments may be recommended, such as additional biopsies, removal of polyps, or further imaging.
Sources
- 1
- 2Lab Tests OnlineSource
- 3
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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.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy