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What is Screening for condition recommended when- and explain in detail?
Ref:Parks 23rd edition pg 136. Screening is carried out in the hope that earlier diagnosis and subsequent treatment, orably alters the natural history of the disease in a significant propoion of those who are identified as "positive". Note: We don&;t do screening when the disease has a low case fatality ratio. Diagnostic tools/tests must be made available before doing a screening test. Otherwise it will be in vain. Effective treatment should be available prior to doing a screening test. Also Refer p. 135. Table 1.