2-14 days after a transfusion, a patient is cross-matched for another transfusion. Slight hemolysis and a positive DAT are found. What testing should follow?
a. Urine hemoglobin
b. Elution procedure
c. Plasma-free hemoglobin test
d. Bilirubin measurement
Question 2
A sample demonstrates a DAT profile that is positive with polyspecific AHG, negative with anti-IgG, and positive with anti-C3. If the Donath-Landsteiner test was also positive, what should the clinical laboratory professional do?
a. Perform an elution and antibody panel
b. Confer with the supervisor regarding the possibility of PCH
c. Request a serum sample for antibody screen
d. Perform a cold agglutinin test