The ANA test "can" be done more quickly . . . but usually is not.
If it isn't negative, it requires repeated dilutions until they finally get a negative reading. That's how they get a higher and high titer reading. Its not one of those test that is simply scanned.
Here is a link with lots of info about
how they do this test:
Sorry, you'll need to copy and paste into your browser. The link wouldn't activate correctly.
I hope this helps.
Post Edited (AlwaysRosie) : 7/16/2008 7:13:09 PM (GMT-6)