A young girl who is known to have T1DM presented with drowsiness and deep breathing. Her sugar level=20. Her BP=120/80mmHg and her mucous membranes are dry. What would be the next appropriate step?
a. Serum urea
b. Blood culture
c. CT
d. HbA1c
e. ABG
The key is E ABG. [Likely diagnosis is DKA where ABG is done to demonstrate acidosis].