Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

CARDIOLOGY > [ECG made easy][conduction problems] > Flashcards

[ECG made easy][conduction problems] Flashcards

1
Q
A

time taken SAN–>ventricles (normal = usually less than 220ms)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q
A

heart block

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q
A

a delay of the conduction from SAN to ventricles at some point. Prolonged PR interval, still one P wave per QRS complex. Each wave IS conducted to the ventricles though.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q
A

failure of the SAN conduction to pass into AVN or His

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q
A

As a distortion of the T wave - i.e. dont always look for a perfect well defined P wave.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q
A

Mobitz I
Mobitz II
x:1 conduction blocks

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q
A

Progressive prolongation of the PR interval. Then failure of one P to result in QRS. Then it starts again with shorter PR intervals (which progress.. etc etc)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q
A

Normal PR and normal P and QRS. Then a single dropped QRS. Then it is normal again.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q
A

Alternate conducted and non-conducted atrial beats. The first ‘x’ is the number of atrial depolarisations which result in 1 ventricular depolarisation. (2:1, 3:1, 4:1)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q
A

Mobitz 1 = benign

Mobitz 2 & 2:1-4:1 blocks = indicative of future 3rd?

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q
A

P standalone

P as a (regular) part of T

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q
A

atrial contraction is normal
no P waves conducted to the ventricles
‘escape mechanism’ depolarisation of the ventricles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q
A

PR interval - no regularity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q
A

3rd degree

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q
A

3rd degree heart block

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q
A

less than 120 ms

17
Q
A

Left (RBBB with normal QRS duration can be non-pathological)

18
Q
A

RBBB (excitation spreads down the LBB and still depolarises the septum from L to R

19
Q
A

V1 - R wave

V6 - Q wave (small!)

20
Q
A

S wave - V1

R wave - V6

21
Q
A

second R wave due to late RV depolarisation

22
Q
A 
R = septal depolarisation. +ve 
S = LV depolarisation (very deep due to mass) -ve
R1 = RV depolarisation (late due to RBBB) +v

(NB this is all in lead V1. Lead V6 would show very different things)

23
Q
A

No - just QRS

24
Q
A

partial RBBB (can be non-pathogenic)

25
Q
A

LBBB

26
Q
A 
V1 = Q
V6 = R

small waves. R–>L septal depolarisation.

27
Q
A

Inversion in the lateral leads (VL, I, V5, V6)

28
Q
A

small mass

29
Q

[conduction problems]: The patterns ‘M’ and ‘W’ would be seen in which leads and in which BBB

A 
M = V6
W = V1

LBBB (due to RV depolarising first in LBBB)

30
Q
A

2

posterior fascicle + anterior fascicle

31
Q
A

1

called the RBBB

32
Q
A

rotates upwards (the posteriori fascicle go under and up, remember)

33
Q
A

left anterior hemi-block

34
Q
A

left anterior hemi-block
or
RBBB + left anterior BBB (bifascicular block)

35
Q
A

nothing - stays largely the same. large mass of LV is the driving force in axis

36
Q
A

left posterior hemi-block

rarely selectively blocked however

37
Q
A

LBB anterior fascicle block AND RBBB

38
Q
A

Check for left axis deviation

then check for RBBB pattern (RSR1)

CARDIOLOGY (11 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions