Prodigy- 3 Lead ECG

Question 1

The impulse from the right atrium spreads to the elft atrium by as et of fibers known as what?

Answer 1

Bachmann’s bundle

Question 2

AV node rate vs ventricle rate

Answer 2

AV node = 40-60
Ventricle = 20-40

Question 3

Answer 3

B

lucky guess

Question 4

QT interval should be no longer than how many milliseconds

Answer 4

380

Question 5

What does the PR interveal represent

normal value

Answer 5

the amount of time it takes the electrical impulse to travel from it’s point of origin in tha tria to the AV node

.12- .20 (120 to 200milliseconds) -

3-5 small boxes
.04 x 3 = 120
.04 x 5 = 200

Question 6

Answer 6

Lead II

Question 7

To create lead III using ECG, the postive electrode is placed where?
-right leg
-left arm
-left leg
-right arm

what about creating lead II?

Answer 7

Left leg? Ithink?

Left leg? I think?

Question 8

At standard recording speed, how many millimeters of ECG paper represent one second of time?
A. 25
B. 60
C. 50
D. 10

Answer 8

A. 25 seconds.