occult blood


occult blood
blood present in such small quantities that it is not visible to the naked eye and can be detected only by chemical tests of suspected material, e.g., feces.

Medical dictionary. 2011.

Look at other dictionaries:

  • Occult blood — may refer to: Fecal occult blood, blood present in the feces that is not visibly apparent Hematuria, the presence of red blood cells in the urine This disambiguation page lists articles associated with the same title. If an …   Wikipedia

  • occult blood — n. (Medicine) blood in the feces in such small quantities that cannot be seen by the naked eye but can be detected by chemical tests …   English contemporary dictionary

  • occult blood test — see specific tests, including guaiac t., and Hemoccult …   Medical dictionary

  • Fecal occult blood — Classification and external resources Cards and bottle used for the Hemoccult test, a type of stool guaiac test. ICD 10 R …   Wikipedia

  • immunoassay fecal occult blood test — iFOBT. A test to check for blood in the stool. A brush is used to collect water drops from around the surface of a stool while it is still in the toilet bowl. The samples are then sent to a laboratory, where they are checked for a human blood… …   English dictionary of cancer terms

  • immunochemical fecal occult blood test — iFOBT. A test to check for blood in the stool. A brush is used to collect water drops from around the surface of a stool while it is still in the toilet bowl. The samples are then sent to a laboratory, where they are checked for a human blood… …   English dictionary of cancer terms

  • immunologic fecal occult blood test — iFOBT. A test to check for blood in the stool. A brush is used to collect water drops from around the surface of a stool while it is still in the toilet bowl. The samples are then sent to a laboratory, where they are checked for a human blood… …   English dictionary of cancer terms

  • Test, stool occult blood — A test to see whether there is blood in the bowel movement. Also called a fecal occult blood test: A test to check for hidden blood in stool. (Fecal refers to stool. Occult means hidden.) Abbreviated stool OB …   Medical dictionary

  • fecal occult blood test — FOBT. A test to check for blood in the stool. Small samples of stool are placed on special cards and sent to a doctor or laboratory for testing. Blood in the stool may be a sign of colorectal cancer. Also called FOBT …   English dictionary of cancer terms

  • Occult pneumonia — is a pneumonia that is not observable directly by the eye, but can only be shown indirectly, especially by radiography. Occult pneumonia can be made visible by chest X rays. The general symptoms cough for more than 10 days and fever for more than …   Wikipedia