1st April 2022

A 24-year-old male presents to A&E accompanied by his parents who explain that over the past 4 days he has had a noticeable change in behaviour

A 24-year-old male presents to A&E accompanied by his parents who explain that over the past 4 days he has had a noticeable change in behaviour. He has been talking excessively and has numerous ideas and business plans on which he has been working throughout the night and sleeping for very short periods. He has not been eating much and says he does not have time to eat or sleep as he has so many plans he needs to implement. 

Based on the most likely diagnosis, which of the following investigations are important to do on admission?

Select the SINGLE most appropriate answer from the list below. Select ONE option only.