ECG: RHYTHMS & ARRHYTHMIAS

Question 1

Types of SA nodal rhythms

Answer 1

Question 2

What is the defining feature for each type of AV block?

Answer 2

Question 3

What are the Atrial rhythms?

Answer 3

Question 4

What are the main types of Ectopic beats?

Answer 4

Question 5

What are the main types of SVTs?

Answer 5

Question 6

What are the main types of Ventricular rhythms?

Answer 6

Question 7

What are the main Conduction disturbances?

Answer 7

Question 8

What are the main types of Escape rhythms?

Answer 8

Question 9

SA nodal rhythm

P wave for every QRS, QRS for every P wave

Answer 9

Sinus rhythm

Question 10

SA nodal rhythm

HR increases during inspiration

Answer 10

Sinus arrhythmia

Question 11

SA nodal rhythms

>100bpm

Answer 11

Sinus tachycardia

Question 12

SA nodal rhythms

dysfunction of sinus node: <60bpm

Answer 12

Sinus bradycardia

Question 13

SA nodal rhythms

dysfunction of sinus node: P fails, next P where expected

Answer 13

SA block

Question 14

SA nodal rhythms

dysfunction of sinus node: P fails, next P not where expected

Answer 14

Sinus arrest

Question 15

AV block

long PR

Answer 15

First-degree

Question 16

AV block

non-conducted P waves: progressive lengthening of PR

Answer 16

Second-degree

Mobitz Type I

Question 17

AV block

non-conducted P waves: PR constant

Answer 17

Second-degree

Mobitz Type II

Question 18

AV blocks

atria and ventricles are independent

Answer 18

Third-degree

Question 19

Atrial rhythms

>100bpm, abnormally shaped P waves

Answer 19

Atrial tachycardia

Question 20

Atrial rhythms

sawtooth P, atrial rate 300/min, AV bl.

Answer 20

Atrial flutter

Question 21

Atrial rhythms

no P waves, irregularly irregular

Answer 21

Atrial fibrillation

Question 22

Ectopic beats

early P wave, abnormal P wave shape

Answer 22

Atrial ectopic beats

Question 23

Ectopic beats

early QRS, narrow QRS

Answer 23

AV junctional ectopics

Question 24

Ectopic beats

early QRS, broad QRS

Answer 24

Ventricular ectopics

Question 25

SVTs narrow QRS, inverted P, P half-buried

Answer 25

• AV re-entry tachycardia

Question 26

SVTs narrow QRS, P buried inside QRS

Answer 26

AV nodal re-entry tachycardia

Question 27

Ventricular rhythms broad QRS, 3+ PVCs in a row

Answer 27

Ventricular tachycardia

Question 28

Ventricular rhythms broad QRS, HR \<120bpm

Answer 28

Accelerated idioventricular rhythm

Question 29

Ventricular rhythms broad QRS, polymorphic, long QT

Answer 29

Torsades de pointes

Question 30

Ventricular rhythms no identifiable waves, erratic

Answer 30

Ventricular fibrillation

Question 31

Conduction disturbances V1: small Q, R, S; V6: R, S, R’

Answer 31

Left bundle branch block

Question 32

Conduction disturbances V1: tiny R, S, R’; V6: small Q, R, S

Answer 32

Right bundle branch block

Question 33

Escape rhythms narrow QRS, absent P, 40-60bpm

Answer 33

AV junctional escape rhythm

Question 34

Escape rhythms • broad QRS, absent P, 15-40bpm

Answer 34

Ventricular junct. escape rhythm