رجل عمره ٣٥ سنة بعد ٣٠ دقيقة من نقل صفائح صار عنده حرارة ٣٩٫٥، وقشعريرة شديدة، والضغط ٨٠/٤٥، والنبض ١٣٥. لا يوجد طفح. ما الذي يجب التفكير فيه؟

A 35-year-old 30 minutes into a platelet transfusion develops T 39.5 °C, severe rigors, BP 80/45 and HR 135, with no rash. What must be considered?

1. A mild allergic reaction
2. Circulatory overload
3. Bacterial contamination
4. Anxiety about the procedure itself

Answer: C) Bacterial contamination. Platelets are stored at room temperature, making bacterial contamination likelier; high fever and shock during transfusion mean stopping at once, cultures and antibiotics.