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IM > ECG LEADS AND LOCATION > Flashcards

ECG LEADS AND LOCATION Flashcards

1
Q

V1

A

4th ICS, right parasternal border

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2
Q

V2

A

4th ICS, left parasternal border

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3
Q

V3

A

Between V2 and V4

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4
Q

V4

A

5th ICS, left midclavicular line

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5
Q

V5

A

5th ICS, left anterior axillary line

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6
Q

V6

A

5th ICS, left midaxillary line

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7
Q

V7

A

Left posterior axilary line

Same horizontal plane as V4-V6

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8
Q

V8

A

Midscapular

Same horizontal plane as V7 and V9

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9
Q

V9

A

Left paraspinal border

Same horizontal plane as V4 to V6

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10
Q

Requested in patients with suspected LV posterior wall infarct

A

V7,V8, V9

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11
Q

Requested in patients with suspected right ventricular infarct

A

V4R, V5R and V6R

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12
Q

V4R

A

5th ICS, right midclavicular line

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13
Q

V5R

A

5th ICS, right anterior axillary line

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14
Q

V6R

A

5th ICS, right midaxillary line

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15
Q

Reflects atrial depolarization

A

P wave

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16
Q

Reflects the conduction of the atria to the ventricles

A

PR interval

17
Q

Distance between the onset of the p-wave and the onset of QRS complex

A

PR interval

18
Q

Serves as the reference isoelectric line of the ECG

A

PR segment

19
Q

Starts at the end of the p-wave and ends at the onset of QRS complex

A

PR segment

20
Q

Represents ventricular depolarization

A

QRS complex

21
Q

The first negative wave (should be) is the

A

Q wave

22
Q

If the first wave is not negative, then QRS complex

A

QRS complex does not possess a Q wave

23
Q

The first positive wave is the

A

R wave

24
Q

Corresponds to the plateau phase (phase 2 ) of cardiomyocyte action potential

A

ST segment

25
Q

Point where the ST segment starts

A

J-point

26
Q

Represents rapid repolarization of contractile cells

A

T-wave

27
Q

QT interval

A

Onset of QRS complex to the end of the T-wave

28
Q

Reflects the duration of both ventricular depolarization and repolarization

A

QT-interval

29
Q

Implies that the wave is included

A

Interval

30
Q

Describes a normally isoelectric portion of the ECG

A

Segmentq

31
Q

Standard ECG measurements run at

A

25mm / second

32
Q

ECG is a plot of ___ over _____

A

Voltage over time

IM (25 decks)

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