MS-2309

A 28-year-old woman presents to the emergency department with vomiting and diarrhoea after consuming undercooked meat at a family gathering. She has no significant medical history and is typically healthy.

Her ABG results are as follows:

Reference Range
pH 7.48 7.35-7.45
pCO2 6.1kPa 4.5-6.0kPa
pO2 10.2kPa 10-13kPa
Cl 100mmol/L 95-105mmol/L
Na 142mmol/L 135-145mmol/L
K 3.2mmol/L 3.5-5 mmol/L
HCO3 30mEq/L 22-26mEq/L

What is the probable cause of her ABG findings?