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A 29-year-old member asked:

do you need a blood test in order to diagnose raynaud's syndrome?

3 doctor answers6 doctors weighed in
Dr. Robert Kwok
Pediatrics 33 years experience
Yes: Raynaud's syndrome is "secondary raynaud's", meaning that another medical condition is causing the raynaud's [henomenon. A primary care or rheumatology doctor can order blood tests and other tests to look for the cause. Raynaud's phenomenon is the vasospasm symptom itself, leading to cold, whitish fingers and toes due to decrease in blood flow (a blood test is not needed to verify the symptom).
Dr. Creighton Wright
General Surgery 56 years experience
No: Cold testing usually shows it. There are some folks with sevondary raynaud's and blood testing may confirm the underlying arthritis, lupus etc.
Dr. Ed Friedlander
Pathology 44 years experience
No: In fact, I wouldn't bother. Some physicians run an anti-nuclear antibody in the hopes that if it's negative, the person won't sit up worrying about scleroderma / CREST. It's not a guide to treatment.

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A 36-year-old member asked:

Is there a blood test to confirm raynauds disease?

2 doctor answers4 doctors weighed in
Dr. Pierre Moeser
Specializes in Rheumatology
No: Though many people with raynaud's have a positive ANA (antinuclear antibody), there is no blood test to confirm the diagnosis. However, your doctor should test for associated diseases such as scleroderma. Raynaud's can exist by itself or be associated with other conditions.

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Last updated Sep 20, 2014
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