Another way of pricing the food consumed is to use the number and color of the dishes left on the patron's table as a guide, similar to the method used in some Japanese conveyor belt sushi restaurants. Some newer restaurants offer a conveyor belt dim sum format, similar to the conveyor belt sushi eating places.
Sensitivity refers to a test's ability to designate an individual with disease as positive. A highly sensitive test means that there are few false negative results, and thus fewer cases of disease are missed. The specificity of a test is its ability to designate an individual who does not have a disease as negative. A highly specific test means that there are few false positive results.
Guaiac-based FOBT version Sensitivity for cancer Sensitivity for adenomas. Hemoccult Sensa (high-sensitivity) 50% â 79% 21% â 35%. Hemoccult II 13% â 50% 8 % â 20%. These differences are so significant that screening guidelines now specify that only high-sensitivity. forms of guaiac-based tests (like Hemoccult Sensa) should be used for colorectal cancer screening.