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Key Terms

Chapter 13

Biopsy The surgical removed and examination of tissue from the living body. Biopsies generally are performed to determine whether a tumor is benign or malignant
Colonoscopy The visualization of the rectum and the entire colon using a colonoscope
Colonoscope An endoscope that is specially designed for passage through the anus to permit visualization of the rectum and the entire length of the colon
Endoscope An instrument that consists of a tube and an optical system that is used for direct visual inspection of organs or cavities
Insufflate To blow a powder, vapor, or gas into a body cavity
Melena The darkening of the stool caused by the presence of blood in an amount of 50 ml or greater
Occult blood Blood in such a small amount that it is not detectable by the unaided eye
Peroxidase A substance that is able to transfer oxygen from hydrogen peroxide to oxidize guaiac, causing the guaiac to turn blue
Sigmoidoscope An endoscope that is specially designed for passage through the anus to permit visualization of the rectum and sigmoid colon
Sigmoidoscopy The visual examination of the rectum and sigmoid colon using a sigmoidoscope
Created by: Tangeladenise
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