L2: Leads

Question 1

Inferior leads

Answer 1

II, III, aVF

Question 2

What type of lead:

V1

Answer 2

Unipolar lead

Question 3

Augmented limb leads…

Answer 3

small waveforms enhanced by machine. 1 (+) lead, 2 ground leads

Question 4

What type of lead:

V4

Answer 4

Unipolar lead

Question 5

Anterior leads

Answer 5

V1-V4

Question 6

What type of lead:

aVL

Answer 6

Augmented limb leads

Question 7

Bipolar leads…

Answer 7

use one (+) and one (-) electrode
PLUS
a 3rd electrode (“ground”

Question 8

aVR degrees

Answer 8

(-)150

Question 9

Lead II goes from

Answer 9

right arm (-) to left leg (+)

Question 10

Waveforms in MCL1 are

Answer 10

Downward

Question 11

Lead I goes from

Answer 11

right arm (-) to left arm (+)

Question 12

Leads showing horizontal plane

Answer 12

Precordial leads V1-V6

Question 13

V5 is placed ____

Answer 13

anterior axillary line, same horizontal plane as V4

Question 14

Lead II degrees

Answer 14

60

Question 15

aVL points towards

Answer 15

left arm

Question 16

What type of lead:

V2

Answer 16

Unipolar lead

Question 17

V6 is placed ____

Answer 17

midaxillary line, same horizontal plane as V4

Question 18

V3 is placed ____ and reflects activity at _____

Answer 18

halfway between V2 and V4

septum

Question 19

What type of lead:

aVR

Answer 19

Augmented limb leads

Question 20

aVF points towards

Answer 20

left leg (foot)

Question 21

Waveforms in MCL6 are

Answer 21

Upright

Question 22

Precordial leads _____ show QRS as biphasic

Answer 22

V3, V4

Question 23

What type of lead:

V6

Answer 23

Unipolar lead

Question 24

Lateral leads

Answer 24

I, aVL, V5-V6

Question 25

Unipolar leads

Answer 25

use a (+) electrode a reference point, the center of the heart, calculated by the ECG machine

Question 26

What type of lead: | V5

Answer 26

Unipolar lead

Question 27

Precordial leads _____ show QRS as (-)

Answer 27

V1, V2

Question 28

Lead most aligned with heart's normal electrical activity

Answer 28

Lead iI

Question 29

MCL1

Answer 29

(+) electrode at V1 position

Question 30

Lead III degrees

Answer 30

120

Question 31

Precordial leads ______ show QRS as (+)

Answer 31

V5, V6

Question 32

aVR shows

Answer 32

RA (+) → Views base of heart→ atria and great vessels

Question 33

What type of lead: | I

Answer 33

Bipolar lead

Question 34

What type of lead: | III

Answer 34

Bipolar lead

Question 35

aVL shows

Answer 35

LA(+) → views lateral wall of left ventricle

Question 36

What type of lead: | aVF

Answer 36

Augmented limb leads

Question 37

aVF shoes

Answer 37

LL (+) → views inferior wall of left ventricle

Question 38

Lead III goes from

Answer 38

left arm (-) to left leg (+)

Question 39

aVF degrees

Answer 39

(+)90

Question 40

Lead I degrees

Answer 40

0

Question 41

MCL6

Answer 41

(+) electrode at V6 position

Question 42

V2 is placed ____ and reflects activity at _____

Answer 42

4th ICS on left of sternum right ventricle

Question 43

aVR points towards

Answer 43

right arm

Question 44

What type of lead: | II

Answer 44

Bipolar lead

Question 45

Leads showing frontal plane

Answer 45

I, II, III, aVR, aVF

Question 46

V4 is placed ____ and reflects activity at _____

Answer 46

5th ICS in MCL septum

Question 47

What type of lead: | V3

Answer 47

Unipolar lead

Question 48

aVL degrees

Answer 48

(-)30

Question 49

V1 is placed ____ and reflects activity at _____

Answer 49

4th ICS on right of sternum right ventricle

Question 50

What are modified chest leads used for?

Answer 50

Telemetry, monitoring in ED/ICU | MCL1 + MCL6