What is the sensitivity and specificity of skin scraping in the office to detect scabies?
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The sensitivity of skin scraping in the office to detect scabies is typically low (<50%), but may be as high as 90% with a skilled sampling. (SOR: C, based on expert opinion and 1 study designed to answer a different question.) The specificity is theoretically 100%, although it is possible for non-scabies material in a sample to be misidentified as a mite or an egg.
Evidence Based Practice 15(4): 10.