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cp1 > ECG Signs > Flashcards

ECG Signs Flashcards

1
Q

1st Degree Heart Block

A

PR Interval is > 200ms/5 small squares

P wave may become lost in proceeding T wave

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2
Q

Right Bundle Branch Block

A

Broad QRS complexes
Positive V1
May have inverted T waves in V1-V3

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3
Q

Left Bundle Branch Block

A

Broad QRS complexes
QRS complex downwardly deflected in V1
May have inverted T waves in V4-V6

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4
Q

Right Axis Deviation

A

Lead III is most positive

Lead I is negative

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5
Q

Left Axis Deviation

A

Lead I is most positive

Leads II and III are negative

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6
Q

2nd Degree Heart Block Mobitz I

A

Progressively prolongation of PR interval until eventually the QRS complex is dropped
Pattern repeats

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7
Q

2nd Degree Heart Block Mobitz II

A

Fixed PR interval
Intermittently dropped QRS
QRS drops tend to occur in a pattern of every 3rd or 4th P wave

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8
Q

Complete Heart Block

A

P waves and QRS complexes with no association

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9
Q

Healthy R wave progression

A

R waves should become > S waves around V3/4

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10
Q

Myocardial Ischaemia

A

ST depression of at least 0.5mm in 2 continuous leads

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11
Q

Previous MI

A

Deep Q waves that are > 25% the height of the R wave proceeding it

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12
Q

Normal location of inverted T waves

A

V1 and potentially III

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13
Q

Biphasic T waves may show

A

Hypokalaemia

Ischaemia

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14
Q

Flat T waves may show

A

Electrolyte imbalances

Ischaemia

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15
Q

Lateral Leads

A

I, aVL, V5, V6

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16
Q

Septal Leads

A

V1, V2

17
Q

Anterior Leads

A

V3, V4

18
Q

Inferior Leads

A

II, III, aVF

19
Q

Coronary artery associated with anterior and septal leads (V1-V4)

A

Left Anterior Descending Artery

20
Q

Coronary artery associated with lateral leads (I, aVL, V5, V6)

A

Left Circumflex Artery OR

Diagonal of LAD

21
Q

Coronary artery associated with inferior leads (II, III, aVF)

A

Right Coronary Artery OR

Left Circumflex Artery

22
Q

Pulmonary Embolism on ECG

A

S1Q3T3

Deep S wave in lead I
Deep Q wave in lead III
Inverted T wave in III

23
Q

Left Ventricular Hypertrophy

A

Deep S waves in V1-V2
Tall R waves in V5-V6
Inverted T waves in I, aVL, V5, V6

cp1 (13 decks)

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