🏥 USMLE Exam Prep

A 30-year-old female presents with a 3-month history of migratory polyarthritis, a malar rash that worsens with sun exposure, and generalized fatigue. Laboratory tests show positive antinuclear antibodies (ANA) and anti-dsDNA antibodies. What is the most appropriate initial pharmacotherapy?

A Methotrexate
B Hydroxychloroquine
C Prednisone
D Rituximab

✓ Correct Answer: Option B

This patient's presentation and lab findings are highly suggestive of Systemic Lupus Erythematosus (SLE). Hydroxychloroquine is the recommended first-line agent for most patients with SLE, particularly for skin and joint manifestations, and has disease-modifying effects.

💡 Why is B) the correct answer?

The correct answer to the question "A 30-year-old female presents with a 3-month history of migratory polyarthritis, a malar rash that worsens with sun exposure, and generalized fatigue. Laboratory tests show positive antinuclear antibodies (ANA) and anti-dsDNA antibodies. What is the most appropriate initial pharmacotherapy?" is Option B: Hydroxychloroquine.

The other options — A) Methotrexate, C) Prednisone, D) Rituximab — are incorrect for this USMLE Exam Prep question. As explained above: This patient's presentation and lab findings are highly suggestive of Systemic Lupus Erythematosus (SLE). Hydroxychloroquine is the recommended first-line agent for most patients with SLE, particular…

📚 About This USMLE Exam Prep Practice Question

This 2-level USMLE Exam Prep question from the Step 2 CK – Clinical Knowledge topic is part of BrainForge Quiz's free exam preparation library. Each question includes the correct answer and a detailed explanation to help you understand the underlying concept, not just memorize the answer.

How to use this page: Read the question above, consider all four options (A through D), then check the highlighted correct answer and explanation. For active timed practice, start a free USMLE Exam Prep practice test or use flashcards for spaced repetition review.

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