system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Screening test for sclerodema
assistant
The correct answer is  Answer- A. Anti-nuclear antibodyANA is the screening method of choice for systemic rheumatic disease such as systemic lupus erythyematous (SLE), mixed connective tissue disease, Sjogren syndrome, scleroderma, CREST syndrome, rheumatoid ahritis, polymyositis, dermatomyositis.