25th August 2020

A 67-year-old man presents to A&E

A 67-year-old man presents to A&E. His family are concerned as he has been increasingly confused over the past several days. On examination, there is no focal neurology or evidence of acute infection. Confusion screen bloods are done and are unremarkable aside from a mildly raised calcium level.

For the case above, please select the hormone which is the SINGLE most likely to be deranged, causing the clinical features described. Select ONE option from the list above.