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ecg interpretation > ecg exam 1 > Flashcards

ecg exam 1 Flashcards

(50 cards)

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1
Q

V3 and V4

A

anterior wall

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1
Q

large block method

A

count the number of large blocks between two Rs and divide 300 by that number

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2
Q

six second method

A

count the number of Rs within a six second strip and multiply that number by 10

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3
Q

atrial rate measurement

A

measure HR between Ps

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4
Q

sinoatrial node

A

first pacemaker site, has rate of 60-100bpm

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5
Q

extreme right axis deviation

A

net negative deflection in Lead I and AVF

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6
Q

limb leads

A

frontal plane, bipolar

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7
Q

positive deflection

A

electricity flows from a negative to a positive electrode

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8
Q

negative deflection

A

electricity flows from a positive electrode to a negative electrode

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9
Q

no deflection

A

electricity flows perpendicularly to an electrode

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10
Q

one small block

A

.04 seconds

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11
Q

atrioventricular node

A

second pacemaker site, has rate of 40-60 bpm

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12
Q

purkinje fibers

A

third pacemaker site, has a rate of 15-40 bpm

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13
Q

V3 and V4

A

anterior wall

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14
Q

axis deviation

A

look at leads I and AVF

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15
Q

P wave

A

atrial depolarization

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16
Q

QRS complex

A

Ventricular depolarization

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17
Q

T wave

A

ventricular repolarization

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18
Q

standard calibration measurement

A

two large blocks (10 mm)

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19
Q

lead II, III, AVF

A

inferior wall

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20
Q

small block method

Study These Flashcards
A

count the number of small blocks between Rs and divide 1500 by that number

21
Q

sinus P wave

Study These Flashcards
A

less than 2.5 mm

22
Q

limb leads

Study These Flashcards
A

frontal plane, bipolar

23
Q

precordial/chest leads

Study These Flashcards
A

horizontal plane

24
normal axis deviation
net positive deflection in Lead I and AVF
25
left axis deviation
net positive deflection in lead I, net negative deflection in AVF
26
pathologic left axis deviation
net negative deflection in Lead II
27
right axis deviation
net negative deflection in lead I, net positive deflection in AVF
28
RA + LA placement
2 cm inferior to the clavicle and 2 cm medial to the deltoid mm
29
RL + LL placement
half the distance between the last rib and iliac crest
30
V1 and V2 placement
4th intercostal space to the left and right of the sternum
31
V3 placement
midway between V2 and V4
32
V4 placement
5th intercostal space, midclavicular line
33
early transition
equiphasic R and S in V1 or V2
34
normal transition
equiphasic R and S in V3 or V4
35
late transition
equiphasic R and S in V5 or V6
36
normal PR interval
between .12 and .2 seconds
37
intercalated discs
joints in cardiac muscle tissue that transmit impulses very quickly through the tissue
38
Lead I and AVL
lateral, high part of the LV
39
V1 and V2
septal wall and part of the anterior wall
40
V5 and V6
mid-lateral wall of LV
41
ventricular rate measurement
measure HR between Rs
42
Dubin's method
find an R on a vertical dark line and count the number of large boxes until the next R (300, 150, 100, 75, 60, 50)
43
irregular rhythm
when Rs have a deviation of greater than .06 seconds (1.5 small blocks)
44
stages of depolarization
septal and early right ventricular activation, apical activation, left ventricle activation
45
V5 placement
5th intercostal space, anterior axillary line
46
V6 placement
5th intercostal space, axillary line
47
normal QRS interval
less than .12 seconds
48
equiphasic
upward and downward deflections result in net 0 deflection
49
normal QT interval
no greater than .48 seconds

ecg interpretation (1 decks)

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