Digestive System Procedures Chapter 8 By Nicole Quinones Bio 120
Stool Cultures Laboratory test of feces to determine if any pathogenic bacteria are present.
Stool Culture At A Glance Why Get Tested? To determine whether you have pathogenic bacteria in your gastrointestinal tract When to Get Tested? When you have diarrhea that lasts more than a few days and/or have blood or mucus in your loose stools Sample Required? A fresh stool sample or one that has been placed in a transport medium (a collection vial containing a preservative) Test Preparation Needed? None
Paracentesis Insertion of a needle into the abdominal cavity to withdraw fluid. Tests to diagnose diseases may be conducted on the fluid.
Why Is It Done <ul><li>Paracentesis may be done to:
Check for certain types of cancer, such as liver cancer.
Remove a large amount of fluid that is causing pain or difficulty breathing or that is affecting how the kidneys or the intestines (bowel) are working.
Check for damage after a belly injury. </li></ul>
Gastroscopy Procedures in which a flexible gastroscope is passed through the mouth and down the esophagus in order to visualize inside the stomach. Used to diagnose peptic ulcers and gastric carcinoma.
Percutaneous Transhepatic Cholangiography (PTC) Procedures in which contrast medium is injected directly into the liver to visualize the bile ducts. Used to detect obstructions.
How is the Test Performed <ul>The test is performed in a radiology department by a radiologist.You will be asked to lie on your back on the x-ray table. The health care provider will clean the upper right side of your belly area and then apply a numbing medicine.X-rays are used to help the health care provider locate your liver and bile ducts. A long, thin, flexible needle is then inserted through the skin into the liver. The health care provider injects dye, called contrast medium, into the bile ducts. Contrast helps highlight certain areas they can be seen better. More x-rays are taken as the dye flows through the bile ducts into the small intestine. This can be seen on a nearby video monitor. </ul>