Autoimmune Diseases · Pathology

Antiphospholipid Syndrome (APS) can occur in SLE patients and is characterized by which clinical triad?

  1. Fever, joint pain, and unexplained weight loss
  2. Thrombosis, pregnancy loss, and thrombocytopenia
  3. Dry eyes, xerostomia, and bilateral parotid swelling
  4. Hematuria, hemoptysis, and severe hypertension
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Correct answer: Thrombosis, pregnancy loss, and thrombocytopenia

APS is a hypercoagulable state. The antibodies interfere with phospholipids in the coagulation cascade, paradoxically prolonging the PTT in vitro while causing clotting and pregnancy complications in vivo.

Difficulty: Medium Question 17 of 20

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