ecgs Flashcards

1
Q

SVT VS ventricular arrytmias

A

SVT - narrow comlex ?

ventricular - wide QRS

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2
Q

ecg features a fib

A

irregular r -r
narrow complex-usually
unduluting or evn flat baseline

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3
Q

?

A
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4
Q

nomral qrs

A

less than 0.12

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5
Q

a flutter charactristics

A

generally has regular R-R intervals (not always)
saw tooth

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6
Q

normal pr interval

A

0.12 - 0.20

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7
Q

when someone is intoxicated with something what are we looking at mainly in ecg

A

qtc interval

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8
Q

relationship of qtc with HR

A

tachy means shortened QTC
brady means leghtned QTC

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9
Q

what are we worried about in a long qtc

A

ventricular arrhythmias, especially Torsade’s de Pointes

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10
Q

causes of prolonged Qtc

A

Hypokalemia
Hypomagnesaemia
Hypocalcemia
Hypothermia
Myocardial ischemia

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11
Q

causes of shortene QTc

A

hypercalcemia
digoxin

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12
Q

normal eletcrical axis

A

-30 + 90

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13
Q

where is lead 1 , 2 , and AVF in realtion to cardiac axis

A

lead 1 - 0 degress
lead 2 - like 45 degrees
lead AVF - straight down at 90 degrees

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14
Q

normal axis leads

A

lead 1 +
lead 2+
lead avf + +

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15
Q

left axis

A

lead 1 = +
lead AVF=negative
lead 2 = you have to check its negative to confirm for some reason

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16
Q

causes of right axis deviation

A

RV hypertrophy

17
Q

what’s the little saying we use for Right axis deviation

A

right is reaching

18
Q

what’s the little saying for Left axis devaition

A

left is leaving

19
Q

septal leads

A

v1 -v2

20
Q

anterior leads

A

v3 +v4

21
Q

what lead can we use to calibrate the ecg

A

AVR should always be pointing RIGHT DOWN if not then you need to repeat the ECG

22
Q

normal postion of v1

A

should be negative but the initial has a tiny peak of postive deflection

23
Q

normal v6

A

postive

24
Q
A