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Electrocardiogram (ECG) > Recalls > Flashcards

Recalls Flashcards

1
Q

3 small squares

A

100 bpm

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2
Q

Picture

A

71-80 bpm

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3
Q

PR segment

A

AV

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4
Q

II, III, AVF

A

Inferior

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5
Q

V1-V4

A

Anteroseptal

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6
Q

V1

A

4th intercostal right

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7
Q

V4

A

5th intercostal midclav

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8
Q

One small box

A

0.04 sec

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9
Q

P wave

A

Atrial depolarization

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10
Q

QRS

A

Ventricular depolarization

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11
Q

T

A

ventricular repolarization

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12
Q

Describe sinus rhythm

A

P precedes QRS

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13
Q

One large box (Horizontally)

A

0.20 secs

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14
Q

One large box (Vertically)

A

0.5 mv

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15
Q

aVlL, I and II

A

Lateral

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16
Q

aVR

A

Right side of the heart

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17
Q

Method 1

A

The Quadrant Method

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18
Q

The most efficient way to estimate axis is to look at ________ and _________.

A

Lead I and lead aVF

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19
Q

The quadrant method

A

Lead I and aVF

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20
Q

Three lead analysis

A

Lead I, Lead II and aVF

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21
Q

Lead 1: Positive

Lead aVF: Positive

A

Normal Axis (0 - +90)

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22
Q

Lead 1: Positive

Lead aVF: negative

A

Possible LAD (0 to -90)

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23
Q

Lead 1: negative

Lead aVF: Positive

A

RAD (+90 - 180)

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24
Q

Lead 1: Negative

Lead aVF: Negative

A

Extreme axis

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25
Q

The usual paper speed is:

A

25mm/sec

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26
Q

QRS axis between -30 and +90

A

Normal axis

27
Q

QRS axis less than -30

A

Left axis deviation

28
Q

QRS axis greater than +90

A

Right axis deviation

29
Q

QRS axis between -90 and 180 (aka “Northwest axis”)

A

Extreme axis deviation

30
Q

Refers to the spontaneous time-dependent depolarization of the cell membrane that leads to an action potential in an otherwise quiescent cell.

A

Pacemaker activity

31
Q

Any __________ with pacemaker activity can initiate the heartbeat.

A

Cardiac cell

32
Q

The pacemaker with the ___________________ will be the one to trigger an action potential that will propagate throughout the heart.

A

Highest frequency

33
Q

6 i all I, II, III, aVL, aVR, aVF

A

Limb leads

34
Q

6 in all V1, V2, V3, V4, V5, V6

A

Chest leads

35
Q

1st downward wave of the complex

A

Q wave

36
Q

1st upward wave of the complex

A

r wave

37
Q

Downward wave preceded by an upward wave

A

S wave

38
Q

Qtc duration men

A

<0.45 s

39
Q

QTc duration women

A

<0.46 s

40
Q

Normal QT interval

A

0.42 secs

41
Q

Normally QRS duration

A

0.08 - 0.10 s

42
Q

Narrow complexes

A

QRS <100 ms

43
Q

Broad complexes

A

QRS >100 ms

44
Q

Narrow complexes are __________ in origin.

A

Supraventicular

45
Q

Broad complexes may be either ventricular origin or due to ____________ of supraventicular.

A

Aberrant conduction

46
Q

Normal PR interval

A

0.12 to 0.20 s (3-5 small squares)

47
Q

Interventricular septum

A

V1, V2

48
Q

Lateral wall

A

I, aVL, aVR

49
Q

Anterolateral wall

A

V5, V6

50
Q

Anterior wall

A

V3, V4

51
Q

Inferior wall

A

II, III, aVF

52
Q

SA node intrinsic firing rate

A

70-80

53
Q

AV node intrinsic firing rate

A

40-60

54
Q

Purkinje fibers

A

15-20

55
Q

P wave must be positive in _______

A

Lead II (II, III, aVF)

56
Q

P wave duration

A

<0.125 s

57
Q

P wave amplitude

A

< or = to 2.5 mm (all leads)

58
Q

4th intercostal space at the right sternal border

A

V1

59
Q

4th intercostal space at the left sternal border

A

V2

60
Q

On the left on the 5th rib between C2 and C4

A

V3

61
Q

5th intercostal space on the left midclavicular line

A

v4

62
Q

on the left on the anterior axillary line, on the level of C4

A

V5

63
Q

On the left on the midaxilary on the level of C4

A

V6

Electrocardiogram (ECG) (3 decks)

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