Direct Coomb’s test is positive in hemolytic anemia due to:
Correct Answer: Paraxysmal cold hemoglobinuria
Description: Paroxysmal cold hemoglobinuria: Caused by the presence of cold-reacting autoantibodies (anti-P Ab) in the blood - Hence, Direct coombs test is positive. Characterized by the sudden presence of hemoglobinuria, typically after exposure to cold temperatures.
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