Acute Coronary Syndrome

Question 1

How are ACSs classified?

Answer 1

ST elevation

• STEMI
• aborted MI

Non ST elevation

• NSTEMI
• Unstable angina

Question 2

What is a type 1 MI?

Answer 2

Atheroscletotic plaque rupture resulting in intraluminal thrombus

Decreased myocardial blood flow

Question 3

What is a type 2 MI?

Answer 3

Any other condition that results in an imbalance between myocardial oxygen supply and demand

Question 4

What can cause a type 2 MI?

Answer 4

Tachyarrhythmias
Heart failure
Aortic dissection
Respiratory failure

Question 5

What is a type 3 MI?

Answer 5

MI resulting in death when biomarkers not available

Question 6

What is a type 4 MI?

Answer 6

MI related to PCI

Question 7

What is a type 5 MI?

Answer 7

MI related to coronary artery bypass surgery

Question 8

What are investigations for a suspected MI?

Answer 8

ECG
Troponin

Coronary angiogram
Chest X-ray
U+Es
Echocardiogram

Question 9

What is troponin?

Answer 9

Protein released in myocardial damage

Question 10

Which types of troponin are measured?

Answer 10

I

T

Question 11

When does troponin peak?

Answer 11

24 hours