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chpt 13
kelsie mitchell
Question | Answer |
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biopsy | the surgical removal and examination of the tissue from the living body.biopsies generally are performed to determine whether a tumor is benign or malignant |
colonoscopy | the visualization of the entire colon using a colonoscope |
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 sigmoid colon |
sigmoidoscopy | the visual examination of the rectum and sigmoid colon using a sigmoidoscope. |