Reverse typing on a patient shows unexpected reactivity with both A1 cells and B cells at immediate spin, but …

Question

Reverse typing on a patient shows unexpected reactivity with both A1 cells and B cells at immediate spin, but the reactions disappear when the test is prewarmed to 37 degrees Celsius. What is the most likely cause?

Accepted Answer

보기 2: A cold reacting autoantibody

Reactivity that appears at immediate spin and disappears after prewarming to 37 degrees Celsius is characteristic of a cold reacting autoantibody. A warm autoantibody reacts better at 37 degrees Celsius, and an alloantibody to a high-incidence antigen does not disappear with prewarming.

Answer

보기 1: A warm autoantibody

Answer

보기 3: An alloantibody to a high-incidence antigen

Answer

보기 4: An ABO subgroup

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Reverse typing on a patient shows unexpected reactivity with both A1 cells and B cells at immediate spin, but the reactions disappear when the test is prewarmed to 37 degrees Celsius. What is the most likely cause?

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