All cut off standards for CT value are laboratory and kit specific. We at Diag use the most standard IVD and CE marked kits which have higher sensitivity and specificity and define the cut off-of CT value as 37. CT > 37 is the criterion to conclude negative.
Public hospitals usually give negative results if CT > 30, but why are results at Diag negative if CT > 37?
Nguyễn Quỳnh Trang
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