Exams and Tests

Attacks of Raynaud's phenomenon are usually temporary. A doctor relies on your medical history to make a diagnosis. If the doctor suspects that you may have Raynaud's phenomenon caused by a specific disease, he or she may perform blood tests to check for antinuclear antibodies, rheumatoid factor, cryoglobulins, and serum protein electrophoreses; possibly x-rays of your cervical spine; and, occasionally, angiography (injected dye) for delineation of type and location of arterial disease.