ECG Part 2

Question 1

What corresponds to the time between the start of the atrial depolarization and the start of ventricular depolarization? 0.13 seconds in large resting dog?

Answer 1

PR interval

Question 2

What corresponds to the time it takes for the ventricles to depolarize, once the cardiac action potential emerges from the AV node and bundle? <0.1 seconds?

Answer 2

QRS complex

Question 3

What corresponds to the time from the beginning of ventricular depolarization to the end of ventricular repolarization? ~0.2 seconds?

Answer 3

QT interval

Question 4

What corresponds to the time between atrial depolarization? This interval can be used to calculate the number of atrial contraction per minute?

Answer 4

PP interval

Question 5

What corresponds to the time between ventricular depolarization? This interval can be used to calculate the ventricular rate?

Answer 5

RR interval

Question 6

Normally, the atrial rate _____ the ventricular rate

Answer 6

Equals

Question 7

What type of animals do ECG vary more among due to less consistent pathways of depolarization and repolarization?

Answer 7

Large animals- horses, cattle

Question 8

Lead 1 = left forelimb with right ____________

Answer 8

Forelimb

Question 9

Lead 2 = left hind limb with ______ forelimb

Answer 9

Right

Question 10

Lead 3 = left hind limb with _____ forelimb

Answer 10

Left

Question 11

25mm/sec = ____ major divisions on the horizontal axis equals _ second

Answer 11

5
1

Question 12

50mm/sec = ___ major devisions on the horizontal axis equals _ second

Answer 12

10
1

Question 13

Vertical calibration is the standardized vertical calibration on an ECG is that __ mm equals 1 mV

Answer 13

10