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CVPR > CV - introduction to the 12-lead interpretation > Flashcards

CV - introduction to the 12-lead interpretation Flashcards

1
Q

what are the “inferior” leads?

A

II
III
aVF

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2
Q

what are the “lateral” leads?

A

I

aVL

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3
Q

what are the right chest leads?

A

V1

V2

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4
Q

what are the left chest leads?

A

V5

V6

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5
Q

what do the right chest leads monitor?

A

right ventricle

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6
Q

what do the left chest leads monitor?

A

left ventricle

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7
Q

the normal QRS axis is defined as ranging from __________ to __________ degrees.

A

-30

+90

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8
Q

-30 to -90 degrees is referred to as a __________.

A

left axis deviation (LAD)

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9
Q

+90 to +180 degrees is referred to as a __________.

A

right axis deviation (RAD)

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10
Q

normal axis is positive in both leads __________ and __________.

A

I

II

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11
Q

left axis is positive in lead __________ and negative in lead __________.

A

I

II

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12
Q

right axis is negative in lead __________ and positive in lead __________.

A

I

II

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13
Q

indeterminate axis is negative in both leads __________ and __________.

A

I

II

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14
Q

__________ axis is positive in lead I and negative in lead II

A

left

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15
Q

__________ axis is negative in lead I and positive in lead II.

A

right

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16
Q

in a right bundle branch block, there is a __________ QRS, a __________ deflection in right-sided leads and a __________ deflection in left-sided leads on ECG.

A

widened
positive
negative

17
Q

in a right bundle branch block, there is a widened __________, a positive terminal QRS deflection in __________-sided leads and a negative terminal QRS deflection in __________-sided leads on ECG.

A

QRS
right
left

18
Q

the V6 lead is a __________-sided lead, and records a __________ QRS with a __________ terminal QRS deflection on ECG of a right bundle branch block.

A

left
widened
negative

19
Q

the V1 lead is a __________-sided lead, and records a __________ QRS with a __________ terminal QRS deflection on ECG of a right bundle branch block.

A

right
widened
positive

20
Q

in a left bundle branch block you have a __________ QRS with conduction __________ V1 and __________ V6.

A

widened
away from
towards

21
Q

the V6 lead is a __________-sided lead, and records a __________ QRS with a __________ terminal QRS deflection which is described as __________, on ECG of a left bundle branch block.

A

left
widened
positive
“rabbit-eared”

22
Q

the V1 lead is a __________-sided lead, and records a __________ QRS with a __________ terminal QRS deflection which is described with a __________, on ECG of a left bundle branch block.

A

right
widened
negative
diminished Q deflection

23
Q

a left anterior hemiblock causes __________ deviation on ECG with a __________ lead I and __________ lead II.

A

left axis
positive
negative

24
Q

left posterior hemiblock causes __________ deviation on ECG with a __________ lead I and __________ lead II.

A

right axis
negative
positive

25
Q

right atrial hypertrophy results in an __________ in the initial voltage of the P wave, and a __________ appearance of the P wave.

A

increase

peaked

26
Q

right atrial hypertrophy results in an increase in the initial voltage of the __________.

27
Q

left atrial hypertrophy results in a __________ or __________ appearance of the P wave.

A

widened

notched

28
Q

left atrial hypertrophy results in a widened or notched appearance of the __________.

29
Q

left ventricular hypertrophy presents on ECG with a normal __________ duration with extremely high voltage (positive deflection) in leads __________ and __________ (__________-sided leads).

A

QRS
V5
V6
left

30
Q

right ventricular hypertrophy presents on ECG with an __________ wave that exceeds the __________ wave.

31
Q

__________ and __________ leads monitor the anteroseptal wall of the heart.

32
Q

__________ and __________ leads monitor the anterior wall of the heart.

33
Q

__________ and __________ leads monitor the anterolateral wall of the heart.

34
Q

__________, __________ and __________ leads monitor the inferior wall of the heart.

35
Q

an acute inferior myocardial infarct presents with ECG recordings of __________ and __________ in the inferior leads (__________, __________ and __________).

A 
ST elevations
abnormal Q waves
II
III
aVF
36
Q

an acture anteroseptal myocardial infarction presents with ECG recordings of __________ and __________ in the anteroseptal and anterior wall leads (__________, __________, __________).

A 
ST elevations
abnormal Q waves
V1
V2
V3
37
Q

acute pericarditis presents with __________ in __________ leads.

A

diffuse ST elevation

multiple (no localization)

38
Q

the most efficient way to estimate axis is to look at leads __________ (__________ ) and __________ (__________).

A

I (lateral)

aVF (inferior)

CVPR (14 decks)

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