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CARDIOLOGY > [ECG made easy][P, QRS, T wave abnormalities] > Flashcards

[ECG made easy][P, QRS, T wave abnormalities] Flashcards

1
Q
A

right atrial hypertrophy (e.g. tricuspid stenosis)

Pulmonary hypertension

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2
Q
A

Left atrial hypertrophy (mitral stenosis)

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3
Q
A

right ventricular - V1

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4
Q
A

25

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5
Q
A

1mm across

2mm deep

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6
Q
A

hypertrophy of the ventricles

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7
Q
A

Height of R is greater than depth of S

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8
Q
A

deep S wave

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9
Q
A

Right ventricular hypertrophy

sinus tachycardia

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10
Q

[P/QRS/T]: when do Q waves not indicate the septal depolarisation but represent an ‘electrical window’ into the cavity of the ventricle (which are depolarised from the inside outwards)

A

Greater than 1mm in width or 2mm deep

this represents a myocardial infarction

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11
Q
A

V2-V4 (maybe V5)

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12
Q
A

VL, I, V5/V6

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13
Q
A

III

VF

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14
Q
A

dominant R wave in V1 (less opposing force of LV depolarisation due to infarction)

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15
Q
A

no - it is permanent once developed

  • shows previous MI!
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16
Q
A

Yes

Anterior, inferior

17
Q
A

pericarditis is not usually a localised affair. ST elevation would be seen across most leads

18
Q
A

downwards sloping ST

19
Q
A

ST depression

20
Q
A

ischaemia as opposed to infarction

21
Q
A 
Normality (VR, V1,)
ichaemia
ventricular hypertrophy
Bundle branch block
Digoxin treatment
22
Q

[P/QRS/T]: where might you see ‘biphasic’ T waves

A

leads adjacent to those showing inverted T waves

23
Q
A

yes

24
Q
A

ST elevation

25
Q
A

ST elevation (first)
Q wave abnormal
T waves become inverted

26
Q
A

There will be no abnormal Q wave (no electrical window)

But there will still be inverted T waves.

27
Q
A

a STEMI causes full thickness infarction

an NSTEMI causes partial thickness infarction

28
Q
A

non-Q wave infarction

subendocardial infarction

29
Q
A

V1, V2, VR

30
Q
A

V3

31
Q
A 
RV = T wave inversion seen in V3 (white person) 
LV = T wave inversion seen in I, II, VL, V5, V6
32
Q
A

abnormal depolarisation = abnormal depolarisation

33
Q

[P/QRS/T]: with what drug would you see the ‘reversed tick’ - on the inverted T waves

A

Digoxin

perform an ECG prior to administering digoxin to prevent later confusion

34
Q
A

sodium

35
Q
A

K +
Mg 2+
Ca 2+

36
Q
A

T wave

QT interval

37
Q
A 
T wave flattening 
U wave (hump on the end of the T wave)
38
Q
A

Tall tented T waves
no ST segment
Widened QRS?

39
Q
A

High level shorten QT interval

Low levels prolong QT interval

CARDIOLOGY (11 decks)

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