Colorectal Cancer Screening Tests: MedlinePlus Medical Test

What transpires throughout a colorectal cancer screening?

There are two key varieties of colorectal cancer screening tests: visual exams and stool tests. There are distinctive alternatives for both of those varieties of tests.

Visual exams are methods that make it possible for a provider to seem inside of the colon and rectum. They are completed either utilizing a skinny tube with a digital camera hooked up or with a distinctive imaging device. Sorts of visual exams involve:

Colonoscopy. This check enables a provider to look at your whole colon and rectum. It is generally completed in an outpatient department of a medical center or health care center. Before the check, you will will need to vacant out your colon (huge bowel) in a treatment called bowel prep. For the duration of the check:

  • You will lie on an examination table.
  • You will be presented drugs called a sedative to assistance you rest. It also helps prevent you from emotion agony throughout the treatment. You may be awake for the check, but you probably will never remember everything.
  • A colonoscope, a skinny, lighted tube with a digital camera hooked up, will be inserted into your rectum and up into your colon.
  • Your provider will seem for colorectal polyps or other abnormal locations.
  • Your provider may take out polyps or tissue samples utilizing distinctive equipment inserted via the scope.
  • Polyps or samples may be despatched to a lab for tests.

The sedative you are presented may make you drowsy for many several hours. You really should set up for someone to push you dwelling.

Sigmoidoscopy. This check enables your provider to seem at the reduce aspect of the colon. For the duration of the check:

  • You will lie on an examination table with your knees drawn up to your upper body.
  • A sigmoidoscope, a flexible, lighted tube with a digital camera, will be inserted into the rectum and up into the reduce aspect of the colon.
  • Air will be pumped via the sigmoidoscope to make the colon even bigger and less difficult to see.
  • The air may make you feel like you will need to have a bowel motion or pass gasoline.
  • Your provider may take out polyps or tissue samples utilizing distinctive equipment inserted via the scope.
  • Polyps or samples may be despatched to a lab for tests.

Digital Colonoscopy. This is a type of x-ray that uses a CT scan (computed tomography) to get specific, three-dimensional shots of the whole colon and rectum. It is usually completed in a radiology department of a medical center or health care center. This treatment also calls for bowel prep beforehand. For the duration of the check:

  • You will lie on a slender table.
  • You may be asked to consume a liquid made up of contrast dye. Distinction dye is a compound that can make elements of your physique clearly show up extra clearly on an x-ray.
  • A provider will insert a tiny tube into the rectum.
  • Air will be pumped via the tube to make the colon even bigger and less difficult to see.
  • The table will slide into the CT machine.
  • A collection of photos will be taken.

Stool tests seem at stool samples for indicators of cancer. For these tests, you get a stool sample at dwelling and deliver it to a lab. Sorts of stool tests:

Fecal occult blood tests. These tests seem for hidden (known as occult) blood in the stool. Blood in the stool may be a signal of polyps, cancer, or other problems. Your health treatment provider will give you a kit that features guidance on how to do the check.

There are two varieties of fecal occult blood tests: the fecal immunochemical check (Suit) and the guaiac smear strategy (gFOBT). Below are typical guidance for each and every check. Your guidance may differ somewhat relying on the maker of the check kit.

For a fecal immunochemical check (Suit), you will most likely will need to:

  • Acquire samples from two or 3 individual bowel actions.
  • Acquire the sample from the toilet utilizing the distinctive brush or other device provided in your kit.
  • For each and every sample, use the brush or device to get the sample from the surface of the stool.
  • Brush the sample on to a check card.
  • Label and seal all your samples as directed.
  • Mail the samples to your health treatment provider or lab.

For a guaiac smear check (gFOBT), you will most likely will need to:

  • Acquire samples from 3 individual bowel actions.
  • For each and every sample, obtain the stool and store it in a clear container. Make confident the sample does not mix in with urine or drinking water from the toilet.
  • Use the applicator from your check kit to smear some of the stool on the check card or slide, also provided in your kit.
  • Label and seal all your samples as directed.
  • Mail the samples to your health treatment provider or lab.

Stool DNA check. This check checks for genetic alterations in the stool that may be indicators of colorectal polyps or cancer. Your provider will permit you know to get a check kit. The kit will involve guidance on how to do the check. The guidance will likely involve the subsequent measures:

  • Place a distinctive container inside of your toilet.
  • Acquire an whole bowel motion.
  • Near and seal the container.
  • Mail the container with the stool sample to a lab for tests.