autoimmune blood test question????

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Regular Member

Date Joined Sep 2008
Total Posts : 97
   Posted 10/12/2008 7:04 AM (GMT -7)   
I was told my last bloodwork didn't show anything autoimmune for arthritis or lupus. So now I have some questions.
Is there a specific test for these?
I'm assuming if it was just some sort of general autoimmune test, wouldn't the crohn's show up?
And if there is specific bloodwork for arthritis or lupus then wouldn't they just do that to diagnose crohn's or confirm diagnosis? Maybe I'm just not understanding what the GI's nurse was talking about. I've had some issues after my remicade treatments so they wanted to rule out lupus and RA.

Veteran Member

Date Joined Jun 2008
Total Posts : 1058
   Posted 10/12/2008 10:45 AM (GMT -7)   
There are specific tests that would confirm lupus:
Antinuclear antibody (ANA)
DNA antibodies
ENA or extractable nuclear antigens
Antiphospholipid antibodies
Complement or levels of C3 and C4 antibodies - usually low in lupus

This series of tests is fairly definitive, especially the DNA antibodies test. Ask for your lab work - you may not understand the results now, but it makes a useful reference for the future and if you go to a new doctor, you don't have to wait for the lab work info to be transferred to him - just take him a copy.

Veteran Member

Date Joined Dec 2007
Total Posts : 2113
   Posted 10/12/2008 6:19 PM (GMT -7)   
For other Autoimmune disorders

Rhuematoid Factor
ESR-a measure of inflamation
CRP-another measure of inflamation
There is a specific test for the inhereted tendency to develop Chron's

You can test negative for all of this stuff and still have an autoimune disorder.
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