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Question 1

electrodes

Answer 1

pads that conduct electricity that are connected to a patient’s body

Question 2

lead wires

Answer 2

wires that connect electrodes placed on a patient’s body

Question 3

sinoatrial node (SA node)

Answer 3

pacemaker; 60-100bpm

Question 4

bundle of His (AV bundle)

Answer 4

relays impulse to right and left branches; 40-50bpm

Question 4

purkinje fibers

Answer 4

relays impulse to ventricular myocardium; 20-40bpm

Question 4

atrioventricular node (AV node)

Answer 4

delays impulse from SA node and relays to bundle of His; 40-50bpm

Question 4

right and left branches

Answer 4

relays impulses to purkinje fibers

Question 5

chest leads v1,v2,v3,v4,v5,v6 are

Answer 5

unipolar

Question 6

limb leads aVR, aVL, and aVF are

Answer 6

unipolar

Question 7

limb leads, one, two and three are

Answer 7

bipolar

Question 8

v5

Answer 8

horizontally even with 4v in left anterior axillary line

Question 9

v4

Answer 9

5th intercostal space in the midclavicular line

Question 10

v3

Answer 10

between v2 and v4

Question 11

v2

Answer 11

4th intercostal space left of the sternum

Question 12

v1

Answer 12

4th intercostal space right of sternum

Question 13

cardiac output

Answer 13

amount of blood that the heart pumps in Liters each minute

Question 14

isoelectric line (baseline)

Answer 14

flat portion of an EKG tracing

Question 15

wave

Answer 15

movement, either up or down, away from the baseline

Question 16

segment

Answer 16

isoelectric area between two waves

Question 17

is the PWAVE the atrial or ventricular rate

Answer 17

atrial rate

Question 18

is the QRS complex the atrial or ventricular rate

Answer 18

ventricular rate

Question 19

regularly irregular rhythm

Answer 19

may or may not look alike but are irregular in a regular way

Question 20

regular rhythm

Answer 20

pattern that looks alike and has consistent timing

Question 21

interval

Answer 21

wave plus a segment

Question 22

complex

Answer 22

several waves that are measured together

Question 23

QRS complex

Answer 23

ventricular depolarization/contraction

Question 24

r-r interval

Answer 24

distance between peak of rwave to the next; should be regular

Question 25

ST segment

Answer 25

end of QRS, where swave returns to baseline; should stay at baseline

Question 26

one large block=

Answer 26

0.20 seconds

Question 27

one small block=

Answer 27

0.04 seconds

Question 28

small block measurements

Answer 28

1mm by 1mm

Question 29

twave

Answer 29

ventricular repolarization/relaxation

Question 30

pwave

Answer 30

atrial depolarization/contraction

Question 31

p-r interval

Answer 31

beginning of pwave to beginning of QRS; 0

Question 32

qrs interval

Answer 32

less than 0.12 seconds

Question 33

20 large blocks

Answer 33

4 seconds