MS-1625

MS-1625

A young surgical trainee is preparing for her first hemi arthroplasty for a fractured neck of femur. During the pre-operative assessment, the patient reports a possible history of penicillin allergy, but due to the patient’s confusion, the history is not confirmed. In the anaesthetic room, the patient is given 1.2g intravenous co-amoxiclav. Suddenly, the patient experiences severe respiratory distress and haemodynamic collapse. What pathological process could be responsible for this event?