A 5-year-old boy suffering from the measles complained of back pain, chills, and stomach pain. A visit to the doctor revealed hemoglobinuria, bilirubinemia, and hemoglobinemia. The child's hemoglobin level had fallen to 6 g/dL. A Donath- Landsteiner test was performed and showed the following: control sample = no hemolysis; test sample = hemolysis. The results are consistent with what disorder?

Question

Quizplus · Accepted Answer

The Donath-Landsteiner test is specific for Paroxysmal Cold Hemoglobinuria (PCH), which is characterized by hemolysis upon exposure to cold temperatures.

A 5-Year-Old Boy Suffering from the Measles Complained of Back