QuestionSBA
QuestionChoice
This would show ST elevation in leads II, III and aVF and would affect the inferior portion of the myocardium
10026766
b
Right coronary artery
QuestionChoice
This causes an anterior myocardial infarction and causes ST elevation in V2-5. You would also expect ST elevation in leads avL and I and reciprocal Q wave formation.
10026765
a
Left anterior descending
QuestionChoice
This would show ST elevation in leads I, and aVL and would affect the lateral side of the myocardium
10026767
c
Left circumflex coronary artery
QuestionChoice
There is no right anterior descending artery.
10026769
e
Right anterior descending
QuestionChoice
This would cause a posterolateral myocardial infarction. It would cause ST depression in V1-3 and ST elevation in V7-9 (posterior leads)
10026768
d
Right coronary artery and left circumflex
Concept
Chapter
2693
3721
Stable angina
Topic
134
Cardiology
17751
A 55-year-old female with a history of coronary artery disease presents to A&E with crushing chest pain radiating to the left arm. She has a past medical history of obesity and type 2 diabetes mellitus. An ECG shows a raised ST segment in the chest leads V2-V5.

Which coronary artery is affected?
a