[lemma=sensitivity] [tag=CC] [lemma=specificity] [□=□]?
[lemma=sensitivity] [tag=CC] [lemma=specificity] [lemma=□]?
[lemma=sensitivity] [tag=CC] [lemma=specificity] [tag=□]?
Secondly , in the routine service laboratory I think the sensitivity and specificity are rather less than those quoted above . This is an important issue , since many diagnostic and treatment decisions are made on the results of clinical , laboratory or other tests which have sensitivities and specificities far below 100 % . Judging from detection of human virus in sewage and shellfish , the techniques are promising at the sensitivity and specificity levels . We assessed the performance of GeneLook with two indices , sensitivity and specificity that are defined as true positives ( TP ) / ( TP + false negatives ) and TP / ( TP + false positives ) , respectively . The sensitivity and specificity of these tests vary and the predicative value positive may be low outside the time of peak influenza activity . Laboratory : know the sensitivity and specificity of sputum culture and the proper way of obtaining sputum for gram stain and culture . Previous studies of stained respiratory tract samples obtained by various methods indicate the following relative diagnostic sensitivities : induced sputum <50 to > 90 % ( the sensitivity and specificity depends heavily on the quality of the specimens and the experience of the microbiologist or pathologist ) , bronchoscopy with bronchoalveolar lavage 90 % -99 % , transbronchial biopsy 95 % -100 % , and open lung biopsy 95 % -100 % . This criterion is different from that in the 1972 criteria document , and has been selected from among several criteria on the bases of their relative sensitivity and specificity . HIV-1 infection does not decrease the sensitivity or specificity of darkfield microscopy .