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A member asked:
Does elisa test for ana titre result come out in iu/ml? what's the reference value in iu/ml? why some results show a ratio like 1:40? any difference?
A doctor has provided 1 answer
Different tests and: units. A result of 1:40 denotes that the test was done at a 1:40 dilution of serum. For ANA, that is the starting dilution and if the test is negative at that dilution it is considered negative.
Answered 4/29/2015
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