Ecg

Question 1

Right bundle branch block

Answer 1

1. Due to the abnormal pathway of deplorisation the right ventricle has to wait to be deplorised through the septum of the left ventricle. This leads to the first criteria a normal begining part of the qrs complex and then followed by another r wave. This leaves an RR pattern that looks like an M on the anterior leads… v1-v3
2. Next another finding is on the lateral leads I, avL, and v5 and V6 there is slurring of the S wave.

Question 2

What is the normal QTc?

Answer 2

350-450

Question 3

transmural infarct will cause what pattern on the ECG

Answer 3

ST elevation

Question 4

posterior infarct

Answer 4

V1-V3 ST depression

Question 5

what are the ECG changes that you will see after patient presents with MI after 7 days

Answer 5

1. tall tented T waves
2. ST elevation
3. T wave inversion
4. Q wave formation within days and remaining permanently

Question 6

WELLS criteria for PE

Answer 6

D dimer less than 500 98% certain not have Pe

D Dimer greater than 500 PE suspected get a CTPA

Question 7

ECG finding expected in a patient with heart failure

Answer 7

pathological Q waves or a bundle branch block suggesting a previous full thickness MI