TY - CHAP M1 - Book, Section TI - Acute haemolytic transfusion reaction (ABO incompatibility) A1 - Smith, Graeme PY - 2018 T2 - Problem Solving in Haematology AB - A 45-year-old woman with severe menorrhagia due to uterine fibroids has failed to respond to medical treatment and is admitted for elective abdominal hysterectomy. Her pre-operative blood count shows haemoglobin (Hb) 10.5 g/dl (reference range 11.5–16.5) and mean cell volume 75 fl (80–98). On the first post-operative day her Hb is 9.5 g/dl but pulse rate and blood pressure are normal. Her surgeon orders that she be transfused with two units of red cells. She has never been transfused before. Ten minutes after starting the first unit of red cells she complains of pain at the infusion site, rapidly followed by the onset of rigors, vomiting and bilateral loin pain. On examination she is flushed and agitated, and has pulse rate 140 beats/min, blood pressure 90/60 mmHg and temperature 37.5°C. Within minutes she becomes increasingly shocked and confused and blood starts oozing from her fresh abdominal wound. The urine in her urinary catheter bag is noted to be red.What is the most likely cause of her acute deterioration?What is the most important differential diagnosis?How would you manage and investigate the problem?What are the most likely root causes of this problem and what preventative measures can be taken? SN - PB - Clinical Publishing Oxford CY - New York, NY Y2 - 2021/03/09 UR - hemonc.mhmedical.com/content.aspx?aid=1152482283 ER -