iSTAT trop compared to Trop I HS
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Our lab recently switched to the HS trop method. Being in POC, I'm sadly finding out my iSTAT trop doesn't correlate well with this-different units, different reference intervals, sensitivity is different, used differently...That being said, am I correct in thinking since the iSTAT trop is a non-waived test, it still needs a biannual correlation? How is this being done? Currently the positive threshold we have is >0.03, which I found out from Abbott is pretty low. They suggest >0.08 which is what most are using (?) If the positive threshold was changed would that make a difference?
Feels like I'm trying very hard to compare apples to oranges.
Any info would be appreciated! Thanks so much.
Feels like I'm trying very hard to compare apples to oranges.
Any info would be appreciated! Thanks so much.
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That aside, I question if a comparison needs to be done due to what CAP says and since it's a non waived test, I'm fairly sure it needs a 6 month comparison.