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chapter 13
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Question | Answer |
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Biopsy | the surgical removal and examination of tissue from the living body; generally 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 & an optical system that is used for direct visual inspection of organs or cavities. |
Insufflate | to blow a powder, vapor, or gas (air) 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 | as it pertains to the guaiac slide test, it is 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 & sigmoid colon. |
Sigmoidoscopy | the visual examination of the rectum & sigmoid colon using a sigmoidoscope. |