UKMLA PLAB AMC USMLE Prometric MCQ

Question Number 0797

Question:
A 20 year old female patient calls the mergency department and says 'I think I have done something stupid. I have taken tablets in a suicide attempt'. Paramedics arrive to find her unresponsive with snoring respirations. An ECG reveals severe widening of the QRS complexes. Which is the likely poison?

a) Aspirin ipratropium
b) carbon monoxide
c) Methanol
d) tricyclic antidepressants
e) Phencyclidine