Rythms

Question 1

Describe Atrial flutter

Answer 1

Regular, narrow complex tacky
Saw tooth baseline, best seen in V1 and lead II
Atrial rate can hit 300 bpm

Question 2

Describe junctional rhythm

Answer 2

Originates at the AV node
Retrograde p-waves seen in ST segment
Regular

Question 3

Describe Supraventricular ectopies

Answer 3

Sinus rhythm
Varying morphology of p-waves on beats 3,6 and 9
Varying PR + RR intervals

Question 4

Where do supraventricular rhythms originate?

Answer 4

Above the AV node

Question 5

What do supraventricular rhythms have?

Answer 5

Narrow QRS

Question 6

What do ventricular rhythms have?

Answer 6

Broad QRS

Question 7

What is bigeminy?

Answer 7

1 sinus beat with a VPC

Question 8

What is trigeminy?

Answer 8

1 sinus beat with 2 VPC’s

Question 9

What should be done in Ventricular fibrillation?

Answer 9

Shock the patient

Question 10

What is aberrancy 1?

Answer 10

Originates in ventricle + complex is broad

Possible association with LBBB or RBBB

Question 11

What is aberrancy 2?

Answer 11

Treat as VT if in doubt

Good predictor of SVT with aberrancy is the pre-existence of bundle branch block

Question 12

What is bifascular block?

Answer 12

2 of PR >200ms, LAD, RBBB

Question 13

What is trifascular block 1?

Answer 13

PR >200, LAD and RBBB

Question 14

What is trifascular block 2?

Answer 14

Alternating RBBB and LBBB

Question 15

Name 4 cardiac arrest rhythms?

Answer 15

Ventricular tachycardia
Ventricular fibrillation
Complete AV block
Pulseless electrical activity