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1MB Cardiovascular > ECG Ne > Flashcards

ECG Ne Flashcards

1
Q

Normal rate of an ECG

A

25mm/s

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2
Q

How long do the small squares represent?

A

0.04 s

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3
Q

How long do the big squares represent?

A

0.2s

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4
Q

How do you work out the heart rate on an ECG?

A

300/ number of big squares between R waves

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5
Q

What does the P wave represent?

A

Atrial depolarisation

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6
Q

What is the normal range for the PR interval?

A

0.12 - 0.2 s

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7
Q

What does a short PR interval indicate?

A

Accessory pathway (Wolff-Parkinson White Syndrome)

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8
Q

What do prolonged PR waves indicate?

A

Heart block

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9
Q

What does the QRS wave represent?

A

Ventricular depolarisation

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10
Q

What is normal duration for the QRS wave?

A

0.12 s

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11
Q

What does a prolonged QRS wave indicate?

A

Bundle branch block

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12
Q

What does a high amplitude QRS complex indicate?

A

Ventricular hypertrophy

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13
Q

What do pathological Q waves indicate?

A

Few hours following MI

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14
Q

ST segment elevation indicates what?

A

Myocardial infarction

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15
Q

Which artery is affected when leads aVF, II and III are affected?

A

Right coronary artery

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16
Q

What artery is affected when leads aVL, leads I, V5-V6?

A

Left circumflex artery

17
Q

Which artery is affected when the leads V1-2 and sometimes V3-V4?

A

Left descending artery

18
Q

Which surface is monitored by V1-V2?

A

Septal

19
Q

Which surface is monitored by V3-V4?

A

Anterior

20
Q

Which surface is monitored by V5-V6?

A

Lateral

21
Q

Which surface is monitored by aVL?

A

Lateral

22
Q

Which surface is monitored by aVF?

A

Inferior

23
Q

Which surface is monitored by I?

A

Lateral

24
Q

Which surface is monitored by II?

A

Inferior

25
Q

Which surface is monitored by III?

A

Inferior

26
Q

How is Atrial Fibrillation seen on ECG?

A

Irregular irregular, absent P Waves

27
Q

Atrial Flutter on ECG?

A

Sawtooth baseline, regularly irregular

28
Q

Wolf-Parkinson White syndrome on ECG?

A

Delta waves, decreased PR intervals

29
Q

Heart block on ECG?

A

Increased PR interval

30
Q

L/R BBB on ECG?

A

Prolonged QRS complex

31
Q

Supra ventricular tachycardia on ECG?

A

Narrow QRS complex

32
Q

Ventricular hypertrophy on ECG?

A

High amplitude QRS

33
Q

How is NSTEMI seen on ECG?

A

St depression

1MB Cardiovascular (4 decks)

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