MI

Question 1

What is MI?

Answer 1

Myocardial infarction, that results in part of the heart muscle dying.

Question 2

What are the 5 types of MI?

Answer 2

1: Plaque
2: demand and supply of O2
3. unexpected cardiac death
4: MI due to PCI (percutaneous coronary intervention)
4b: stent thrombosis
5: MI due to CABG (coronary artery bypass graft)

Question 3

What is the time period from which the heart can be brought back from MI?

Answer 3

20-40 mins

Question 4

What are the indications that a person is going through MI?

Answer 4

Angina, chest tightness, SOB, shoulder and arm pain, jaw and teeth pain, nausea and vomitting and heart burn and indigestion.

Question 5

What are the procedures for diganosis?

Answer 5

Asks for symptoms
Takes :
  BP
  Pulse
  Temperature
  Connected to a heart monitor
ECG
Echocardiogram
Blood test
CT
MRI

Question 6

What is our role in diagnosing MI?

Answer 6

CXR showing electrical equipment position and heart and size 
shape 
blood vessels
width of the aorta
Clarity lung fields.
cardiothoracic ratio

Question 7

What is the radiographic appearance of MI?

Answer 7

Mild MI : Upper lobe blood diversion and butterfly or batwing appearance of pulmonary vessels

Question 8

How do you treat MI?

Answer 8

Oxygen

• Aspirin to avoid anymore blood clotting happening in the coronary arteries
• Nitroglycerin, to decrease the workload of the heart and improve coronary arteries blood flow
• Other medications to manage the chest pain
• Angioplasty
• Stents

Question 9

What is the prognosis for MI?

Answer 9

15% die before reaching hospital
15% die after they arrive
1/25 die after discharge
65 year olds: 
20% die within month
35% die within year