ECG

Question 1

Approach to reporting

Answer 1

1. Rate/ complexes (blocks)
2. Rhythm
3. Axis
4. Hypertrophy

Question 2

How to calculate ECG rate

Answer 2

300 / no. of large squares between R-R cycles

Question 3

Right bundle branch block

Answer 3

V1 - M - rsr pattern
V6 - W - slurred S wave

MoRRow

Question 4

Causes RBBB

Answer 4

Common post surg that requires closure of VSD
- VSD/ TOF repair
- ASD/ AVSD
- occasionally normal in children

Question 5

Normal axis

Answer 5

I : positive
aVF : positive

Question 6

Right axis

Answer 6

I : negative
aVF : positive

Question 7

Left axis

Answer 7

I : positive
aVF : negative

Question 8

Causes left axis deviation

Answer 8

AVSD
Tricuspid atresia (cyanotic, decreased pulm BF)

Question 9

Causes right axis deviation

Answer 9

RVH
TOF
PS
Large VSD
PulmHTN
HOCM
L-TGA (corrected)

Question 10

Left VH on ECG

Answer 10

Tall r waves V5 and V6

Question 11

RVH on ecg

Answer 11

Tall r waves v1 and v2

Question 12

Causes LVH

Answer 12

Increased LV volume or pressure load
LVOTO - AS, CoA

Question 13

Causes RVH

Answer 13

Increased RV pressure or volume load
PS
Pulm HTM
Large VSD
AVSD
Pulm regurg