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8138 Social & Preventive Medicine

If Hemoccult test is negative for screening of colonic cancer, no fuher test is done. If the hemoccult test is positive the individual will have a second stool sample tested with Hemoccult II test. If this second sample is positive for blood, the individual will be referred for more extensive evaluation. The effect of net sensitivity and net specificity of this method of screening is

ANet sensitivity and net specificity are both increased
BNet sensitivity is decreased and net specificity is increased
CNet sensitivity is increased and net specificity is decreased
DNet sensitivity remains the same and net specificity is increased
Social & Preventive Medicine
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