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02F > ECG > Flashcards

ECG Flashcards

1
Q

What does p wave mean

A

atrial depolarisation

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2
Q

PR interval

A

Impulse is paused to allow time for ventricles to fill
normal= 0.12-0.20s

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3
Q

QRS complex
Normal time

A

Ventricular depolarisation
0.07- 0.1 s

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4
Q

T wave

A

ventricular repolarization

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5
Q

QT

A

ventricular depolarisation and repolarisation complete
normal
0.44 in men 0.46 in women

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6
Q

T wave inversion is normal in what leads

A

v1 and avr

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7
Q

How to calculate heart rate

A

300/ r-r (Number of big squares)
One big square= 0.20 one small square= 0.04

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8
Q

ECG Positioning

A

see google image

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9
Q

Normal cardiac axis

A

-30 to plus 90
all this means is the conduction of charge happens to the left

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10
Q

What is a positive spike and what is a negative spike

A
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11
Q

how do we work out axis deviation

A

look at leads 1 and avf are the QRS positive or negative

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11
Q

how do we work out axis deviation

A

look at leads 1 and avf are they positive or negative

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12
Q

Normal
Right Axis deviation
Left axis deviation

A

normal= positive in leads 1 and AVF
RAD= Positive in leads 1 and negative in AVF
LAD- negative in leads 1 and positive in AVF

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13
Q

RIght axis deviation causes

A

RV HYpertrophy
lateral MI
PE COPD
WOlf parkinson

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14
Q

Left axis deviation

A
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15
Q

LAD causes

A

left ventricular hypertrophy
inferior mi
LBB
wolf parkinson

16
Q

irregularly irregular rhythm

A

AF
Ectopics

17
Q

Regularly irregular

A

Ectopics and second degree heart block

18
Q

P mitrale
P pulmonale

A

p mitrale= m shaped= left atrial enlargement
p pulmonale= big= right atrial enlargement

19
Q

absent p waves

A

af

20
Q

sawtooth p waves

A

atrial flutter

21
Q

p waves dissociated from qrs

A

heart block

22
Q

p waves dissociated from qrs

A

heart block

23
Q

Long pr interval
SHortened pr interval
PR depression

A

long= heart block
short- accessory pathways
PR depression= pericarditis

24
Q

tachycardia
NArrow qrs
broad complex qrs
large amplitude

A

narrow= svt
broad= ventriculat tachy
ventricular hypertrophy

25
Q

Long qt

A

macrolides, tricyclics, haloperidol, antihistamines
Long qt
Hypo K, Ca, Mg

26
Q

elevated ST
depressed ST

A

stemi, pericarditis
depressed- NSTEMI, unstable angina

27
Q

inverted t waves
peaked
absent/flat

A

ischaemia/ infarction
peaked- hyperkalaemia
flat= hypokalaemia

28
Q

u waves

A

hypokalaemia

29
Q

j waves

A

hypothermia

30
Q

delta waves

A

wolf parkinson

30
Q

delta waves

A

wolf parkinson

02F (18 decks)

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