Final answer:
A lupus-like reaction indicates a drug-induced lupus erythematosus, where symptoms similar to systemic lupus erythematosus are caused by certain drugs. This condition is usually resolved by discontinuing the drug and providing supportive care.
Step-by-step explanation:
When mentioning a lupus-like reaction, it refers to a syndrome where a person exhibits symptoms and lab findings similar to systemic lupus erythematosus (SLE), triggered by certain medications. This response, known as drug-induced lupus erythematosus (DILE), typically resolves after the offending medication is stopped. Common drugs known to cause lupus-like reactions include hydralazine, procainamide, and isoniazid. Diagnosis involves clinical evaluation, as well as laboratory tests such as antinuclear antibodies (ANAs). Management of DILE consists of discontinuing the drug, supportive care, and sometimes immunosuppressive agents if symptoms are severe or do not resolve quickly.