Cardio Revision

Question 1

Which valves are atrioventricular valves

Answer 1

Mitral

Tricuspid

Question 2

Which valves are Semilunar Valves

Answer 2

Aortic

Pulmonary

Question 3

Is Pulmonary circulation Oxygenated

Answer 3

No

Question 4

Is Systemic circulation oxygenated

Answer 4

yes

Question 5

Where do the coronary arteries originate from in the aorta

Answer 5

Coronary Ostia

Question 6

What is the cardiac cycle

Answer 6

the time between ventricular contractions nd ventricular relaxation

Question 7

What is stroke volume

Answer 7

volume of blood being pumped out of the ventricles in a single beat

Question 8

What is normal cardiac output

how do you calculate it?

Answer 8

4-8L/min

CO = SV x HR

Question 9

What is Pre-load

Answer 9

volume of the ventricular myocardium at the end of diastole

Question 10

What is After-load

Answer 10

Pressure against the left ventricle during systole to open the aortic valve

Question 11

Where do electrical conductions in the heart begin from

Answer 11

SA node

Question 12

What is the P wave

Answer 12

Atrial depolarisation (contraction)

Question 13

What is the QRS complex

Answer 13

ventricular depolarisation, atrial repolarisation

Question 14

What is the T wave

Answer 14

ventricular repolarisation (resting phase)

Question 15

How many seconds does one large square on ECG paper account for

Answer 15

0.2secs

Question 16

How to calculate HR from ECG

Answer 16

Count no. QRS within 6 seconds then x10

Question 17

What is a normal PR interval

Answer 17

0.12-0.2sec

(treasured form onset of P wave to onset of QRS complex

Question 18

What is a normal QRS complex

Answer 18

0.06-0.12 sec

Question 19

What is the the bpm of normal sinus rhythm?

Answer 19

60-100bpm