Author: Fiona Mendes / Editor: Yasmin Sultan / Codes: EnvC1, SLO3Published: 02/12/2021

On a hot summer’s day, a 28-year-old runner is brought by ambulance to your Emergency Department (ED), following a collapse soon after completing a marathon.

She felt unwell during the marathon and struggled to complete it. Paramedics report a high temperature. She has no other features of infection and is pain-free, without any injuries.

She has no other medical problems and was previously fit and well. Following your assessment, you suspect a heat related illness.