ECG revision Flashcards

1
Q

What is the p wave?

A

Atrial depolarisation

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2
Q

What is the p wave?

A

Atrial depolarisation

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3
Q

How long is the p wave normally?

A
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4
Q

What is the PR interval

A

AV node delay

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5
Q

How long is a normal PR interval?

A

0.12 - 2.0

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6
Q

What is the QRS complex?

A

ventricular depolarisation (masks atrial repolarisation)

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7
Q

How long is a normal QRS?

A

0.06 - 0.1

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8
Q

What is the Q wave?

A

Ventricular repolarisation

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9
Q

What is the TP interval?

A

Diastole

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10
Q

What does AF look like on an ECG?

A

Absent P waves

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11
Q

What does Atrialf Flutter look like on an ECG?

A

Sawtooth baseline

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12
Q

What is a common cause of Right axis deviation?

A

RVH

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13
Q

What does right axis deviation ;look like on an ECG?

A

Downward defelction in I

Positivew upward deflection in III

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14
Q

What is a common cause of left axis deviation?

A

Conduction defects

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15
Q

What does left axis deviation look like on an ECG?

A

QRS negatve in I & III

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16
Q

What does RBBB look like on an ECG?

A

Deep S wave - I& V6

Tall R wave in V1

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17
Q

What does LBBB look like on an ECG?

A

Deep S wave - V1
Tall R waves in I & V6
Abnormal Q waves

18
Q

What does WPW look like on an ECG?

A

Slurred upstroke on the R wave

19
Q

What does hyperkalemia look like on an ECG?

A

Tall tented T waves

20
Q

What is a main caise of ST depression?

A

Myocardial ischaemia

21
Q

What is the normal cardiac axis?

A

-30 to 90

22
Q

How long is the p wave normally?

A

less than 0.12

23
Q

What is the PR interval

A

AV node delay

24
Q

How long is a normal PR interval?

A

0.12 - 2.0

25
Q

What is the QRS complex?

A

ventricular depolarisation (masks atrial repolarisation)

26
Q

How long is a normal QRS?

A

0.06 - 0.1

27
Q

What is the Q wave?

A

Ventricular repolarisation

28
Q

What is the TP interval?

A

Diastole

29
Q

What does AF look like on an ECG?

A

Absent P waves

30
Q

What does Atrialf Flutter look like on an ECG?

A

Sawtooth baseline

31
Q

What is a common cause of Right axis deviation?

A

RVH

32
Q

What does right axis deviation ;look like on an ECG?

A

Downward defelction in I

Positivew upward deflection in III

33
Q

What is a common cause of left axis deviation?

A

Conduction defects

34
Q

What does left axis deviation look like on an ECG?

A

QRS negatve in I & III

35
Q

What does RBBB look like on an ECG?

A

Deep S wave - I& V6

Tall R wave in V1

36
Q

What does LBBB look like on an ECG?

A

Deep S wave - V1
Tall R waves in I & V6
Abnormal Q waves

37
Q

What does WPW look like on an ECG?

A

Slurred upstroke on the R wave

38
Q

What does hyperkalemia look like on an ECG?

A

Tall tented T waves

39
Q

What is a main caise of ST depression?

A

Myocardial ischaemia

40
Q

What is the normal cardiac axis?

A

-30 to 90