The examining digit should be inspected. The color of the fecal material should be noted. The fecal material should be placed on the fecal occult blood test (FOBT) card and examined with the Hemoccult developer.
The guaiac or benzidine test detects occult blood. If blood is present, a chemical reaction results in a blue coloration on the card. The reaction is graded by the intensity of the blue color, from light blue (trace blood) to dark blue (4+ positive).
Although the examination for inguinal hernias is part of the abdominal examination, it is discussed in Chapter 18, Male Genitalia and Hernias.
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