This document contains multiple choice questions about blood transfusion reactions, diagnostic tests for syphilis, and a case of a 30-year-old female with bronchiectasis. Regarding blood transfusions, choices include that ABO incompatibility causes severe haemolysis, FNHTR is due to recipient antibodies to donor leukocytes, and TRALI is caused by donor plasma antibodies to leukocytes. Tests to confirm syphilis include the TPPA antibody test. The best diagnosis for the 30-year-old female with bronchiectasis and infections is a neutrophil defect.