15th August 2020

A 24-year-old lady attends the emergency department with her flatmate

A 24-year-old lady attends the emergency department with her flatmate. Her housemate explains that she found her collapsed but conscious on the bathroom floor. She reveals that the patient suffers from bulimia nervosa and had been vomiting excessively on this particular occasion. The patient is dehydrated, but her vital signs are stable. You decide to take an arterial blood gas (ABG) sample.

Select the SINGLE most likely acid-base disturbance the ABG will reveal from the list below. Select ONE option only.