Endocrine Abstracts

We present a case of a 54-year-old man who was urgently referred to A&E by his general practitioner with very low calcium of 1.32 mmol/l (normal 2.20–2.60 mmol/l). His only past medical history of note was of recently diagnosed multiple sclerosis (MS), which presented as optic neuritis six months ago. His initial investigations included high phosphate level of 2.0 mmol/l (normal 0.8–1.5), normal vitamin D levels (76 mmol/l) and a very low 24-hour urine calcium of...