Home >> Study >> ForumTopic: Community Medicine Question on sensitivity and specificity
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| Author: | Message |
| indent Total Posts: 54 | Posted: Wed Oct 22, 2008 04:53 am Q. CA 19-9 levels > 20 U/mL has 79% sensitivity and 79% specificity for the diagnosis of gallbladder cancer, CEA > 4 ng/mL is 93% specific but 50% sensitive for detecting the diagnosis of gallbladder cancer. So which is better ? |
| abkalavant Total Posts: 6 | Posted: Wed Oct 29, 2008 01:39 pm of course... CA19-9 is better .... as it can detect 79/100 pts... where as CEA can detect only detect only 50% of the pt with disease... moreover the Q is on detecting the disease.. no on confirmatory test.. any other views? |