A 35 year old woman undergoing treatment for TB presents with malar rash, photosensitivity and hematuria. What is the single most likely positive antibody?
belongs to book: 1700 MCQ REVISED VERSION TOPIC WISE|DR. KHALID SAIFULLAH|4th EDITION| Chapter number:9| Question number:10
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Medicine
The key is C. Antihistone antibody. [Anti histone antibody is present in 95% cases of drug induced
lupus. The most common drugs that cause drug-induced SLE are hydralazine (rate roughly 20%),
procainamide (rate roughly 20%, 5-8% if taken for 1 y), quinidine, isoniazid, and minocycline].
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