ECG

Question 1

Answer 1

Sick Sinus Syndrom: Brady-Tachy syndrome

Runs of tachycardia interspersed with long sinus pauses (up to 6 seconds).
The sinus rate is extremely slow, varying from 40 bpm down to around 10 bpm in places.
Sinus beats are followed by paroxysms of junctional tachycardia at around 140 bpm.

Alternating bradycardia with paroxysmal tachycardia, often supraventricular in origin.
On cessation of tachyarrhythmia may be a period of delayed sinus recovery e.g. sinus pause or exit block.
If significant this period of delayed recovery may result in syncope.

Question 2

Answer 2

Sick Sinus Syndrome: Sinus Arrest

Prolonged absence of sinus node activity (absent P waves) > 3 seconds.

Question 3

Answer 3

Premature Atrial Contractions

Question 4

Answer 4

Premature Atrial Contractions

Question 5

Answer 5

Premature Atrial Contractions (Blocked)

Question 6

Answer 6

Afib with 3rd degree with Junctional Escape Rhythm

Question 7

Answer 7

Sinus Bradycardia

Question 8

Answer 8

Asystole