Paramedic Prep Intro to ECG

Paramedic Prep Intro to ECG
Study online at https://quizlet.com/_aiehqe

1. What is the path 1. SA Node-pacemaker, intrinsic rate 60-100
of electrical con- 2. Internodal pathway-between SA Node and junction
duction theough- 3. AV Node-or AV Junction or junction intrinsic rate 40-60
out the heart? 4. Ventricles-intrinsic rate 20-40
-Bundle of HIS
-Bundle Branches
-Purjinke fibers

2. What is the -Lead 2 (right upper tô left lower)
standard default
lead?

3. What are the di- -1mm wide and 1mm tall
mension of a
small box?

4. ECG strip push- -25mm
es at ________mm
per second?

5. ECG strip push- -25 boxes
es at _______boxes
per second?

6. P wave is -upright
_________ in lead 2
reading.

7. What is the name -isoelectric line
of the line with no
electrical activity?
Baseline.




, Paramedic Prep Intro to ECG
Study online at https://quizlet.com/_aiehqe

8. During a P wave, 1. Chemical action-NA++ (sodium influx)
what is the... 2. Electrical action-Atrial Depolarization
1. Chemical ac- 3. Mechanical action-Atrial Contraction
tion -During the PR interval Ventricles fill while in a 0 state
2. Electrical ac-
tion
3. Mechanical ac-
tion?

9. What is the elec- -Mv or millivolts
trical action mea-
sured in?

10. During the QRS 1. Chemical action-NA++ (sodium influx)
complex what is 2. Electrical action-Ventricle Depolarization and atrial re polarization
the....... 3. Mechanical action-Ventricular contractions (unless PEA)
1. Chemical ac-
tion
2. Electrical ac-
tion
3. Mechanical ac-
tion

11. What is a nar- -Narrow complex means Impulse is coming from above the ventricles.
row QRS com- -Less than or equal to 0.12 seconds (3 boxes)
plex? How it is
measured?

12. What is a wide -Wide QRS complex means that Impulse is originating from the Ventricles
QRS complex? -Wide QRS greater than 0.12 seconds
How it is mea-
sured?