10th June 2021

A 27-year-old woman presents to A&E, following a collapse

A 27-year-old woman presents to A&E, following a collapse. She tells you that she was at work at her job as a sales assistant in a clothes store, and had been feeling a bit lightheaded all morning. Just before her lunch break, she was finishing tidying up a clothes rack when the dizziness worsened; her vision started going dark, and then she found herself on the floor. A customer saw the incident and said she was only unconscious for a few seconds. It has been a very hot day, and she has been very busy at work. She has no past medical history of note.

Which THREE of the following would be the most appropriate initial investigations? Select THREE options only.