ekg/ecg vocab

Question 1

P wave

Answer 1

atrial depolarization (contracting)

Question 2

QRS complex

Answer 2

ventricular depolarization (contracting)
[atrial repolarization, however it’s hidden because of the high amplitude]

Question 3

T wave

Answer 3

ventricular repolarization (relax)

Question 4

methods for finding heart rate on ekg/ecg

Answer 4

1. 300 / # of big boxes from R wave to R wave

Question 5

Amplitude

Answer 5

height of wave
.5 - 1 voltage

Question 6

SA node

Answer 6

pacemaker

Question 7

steps of movement through heart

Answer 7

SA node
AV node
bundle of his (right and left bundle branches)
septum
apex
purkinje fibers

Question 8

bifercate

Answer 8

split in two

Question 9

asystole

Answer 9

a + systole
without + heart rhythm
no heart rhythm

Question 10

A fib

Answer 10

small bumps (atrial fibrillation)

Question 11

V fib

Answer 11

huge bumps (ventricular fibrillation)

Question 12

ekg/ecg

Answer 12

echocardiogram
(measures electricity in heart)

Question 13

x axis

Answer 13

time

Question 14

y axis

Answer 14

voltage

Question 15

small box

Answer 15

0.04 sec

Question 16

big box

Answer 16

0.2 sec

Question 17

how to read ekg/ecg

Answer 17

1. examine p waves
2. measure pr interval (0.12-0.2 sec)
3. measure QRS complex (0.06-0.12 sec)
4. identify rhythm
5. determine heart rate
6. interpret strip

Question 18

PR interval

Answer 18

beginning of P wave to beginning of QRS complex

Question 19

PR segment

Answer 19

distance between P wave and QRS complex

Question 20

QRS complex

Answer 20

distance from Q wave to S wave

Question 21

ST interval

Answer 21

end of QRS complex to end of T wave

Question 22

ST segment

Answer 22

distance between QRS complex and T wave

Question 23

arrhythmia

Answer 23

ar + rhythm + ia
without + rhythm + condition
irregular heart rate

Question 24

tachycardia

Answer 24

tachy + card + ia
rapid + heart + condition
rapid heart rate

Question 25

epinepherine and nepherephrine

Answer 25

increase heart rate and heart contractility (adrenaline)
alpha and beta receptors

Question 26

beta blockers

Answer 26

slow heart rate and contractility