Cardiovascular MCQ's Flashcards
The right atrium, right ventricle and part of the left ventricle are supplied by what coronary artery
Right coronary artery
Which blood vessel carries oxygenated blood?
Pulmonary Vein
Deoxygenated blood is received into the what?
Right Atrium
The heart wall has 3 layer, What is the inner layer called?
Endocardium
How long does ventricular systole last for?
0.3 sec
The coronary sinus returns venous blood to what chamber?
Right Atrium
Erythrocytes live for how long?
120 days
Bronchospams are a side effect of what cardiac drug?
Asprin
What is the most common cause of an ischaemic stroke?
Atrial fibrillation
A pt presenting with crushing chest pain is more than likely suffering from what?
An MI
Which part of the ECG represents contraction of the ventricles?
ST segment
The max dose of GTN given to a pt with pulmonary oedema is what?
1600 mcg
Cushing triad consists of what signs and symptoms?
Bradycardia, Hypertension, Irregular respirations
A pt with ST elevation in leads L1, V5, V6 will most likely be having an MI in which section of the heart?
Lateral
In an application of a 12 lead ECG, where is lead VI placed?
4th intercostal space, to the right of the sternum
The left bronchus enters the lung at a sharper angle than the right bronchus. Why is this?
The heart is in the way
The lungs are supplied with blood from where?
The left ventricle
What is the correct route of GTN?
Sublingual
ST elevation is leads ii, iii, avf indicates what?
An inferior MI
Standard ECG paper travels at what speed?
25mm/sec
What heart valve is located between the left atrium and ventricle?
The mitral valve
What does aspirin do?
A platelet aggregator, it stops the clots sticking together
What is the most common rhythm in paediatric cardiac arrest?
Asystole
What is the most common rhythm in sudden cardiac arrest in adults?
Ventricular fibrillation
