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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
Drug induced lupus can be identified by:
assistant
The correct answer is  Anti-histone antibodies are positive in 50-100 % of the patients with drug induced lupus. The drugs most commonly associated with DIL are: ? Procainamide ? Hydralazine ? Quinidine ? Isoniazid So anti-histone antibodies are the single best answer of choice. Ref: Harrison's Principles of Internal Medicine, 16th Edition, Page 1961; Systemic Lupus Erythematosus By Robe G. Lahita, George Sokos, Jill P, Buyon, Takao Koike.