VT

Question 1

abnormal fast rhythm that originates within the ventciles

Answer 1

ventricular tachyarrhythmia (VT)

Question 2

reentry caused by slow conduction through diseaseed myocardial tissue

Answer 2

VT

Question 3

VT is most common in patients who have

Answer 3

ischemic heart disease

Question 4

one reentrant circuit

Answer 4

monophonic

Question 5

consistent morphology (type of VT)

Answer 5

monomorphic

Question 6

more than one reentrant circuit (VT)

Answer 6

polymorphic

Question 7

varying morphology (type of VT)

Answer 7

polymorphic

Question 8

Reentrant VT is primary underlying rhythm of

Answer 8

sudden cardiac death (SCD)

Question 9

SVT or VT

AV dissociation is present in 50% of patients

Answer 9

VT

Question 10

SVT or VT

inducible from ventricule but not atrium

Answer 10

VT

Question 11

SVT or VT

QRS duration is often >140 ms

Answer 11

VT

Question 12

SVT or VT

QRS axis is usually

Answer 12

VT

Question 13

SVT or VT

no response from adenosine

Answer 13

VT

Question 14

SVT or VT

QRS morphology is atypical for bundle branch block or preexcitation

Answer 14

VT

Question 15

SVT or VT

AV dissociation is never present

Answer 15

SVT

Question 16

SVT or VT

Inducible from the atrium

Answer 16

SVT

Question 17

SVT or VT

QRS duratoin is <140 ms

Answer 17

SVT

Question 18

SVT or VT

QRS acis is usually >-30 degrees

Answer 18

SVT

Question 19

SVT or VT

adenosine either restores the sinus rhythm or causes transient rhythm changes

Answer 19

SVT

Question 20

QRS morphology may indicate bundle branch block or preexcitation (delta wave)

Answer 20

SVT

Question 21

VT is diagnosed by demonstrating ___ is not part of the VT mechanims.

Answer 21

atria

Question 22

50% of patients with VT and never present in SVT

Answer 22

AV dissociation

Question 23

VT with AV dissociation _____ have retrograde conduction over the AV node

Answer 23

does not have

Question 24

presence of AV dissociation confirms what

Answer 24

VT diagnosis

Question 25

Adenosines restores SR in VT

Answer 25

NO

Question 26

macroreentrant circuit forms around infarcted scar tissue

Answer 26

scar-related reentry

Question 27

QRS duration for scar-related vt

Answer 27

>140ms

Question 28

macroentrant circuit forms around the interventircular septum

Answer 28

typical bundle branch reentry

Question 29

typical bundle branch travel pattern

Answer 29

down RBB (slow) across septum up left bundle branch (fast) renterting through HIS

Question 30

LBBB 12 ECG morphology

Answer 30

negative R wave in Lead V

Question 31

RBB 12 ECG

Answer 31

Postitive R wave in lead 5

Question 32

impulse travels up the right bundle branch, fast pathway.

Answer 32

reverse bundle branch reentry

Question 33

associated with enhanced automaticity or triggered activity (focal arrhythmia)

Answer 33

Idiopathic VTs

Question 34

occurs during phase 3 of the action potential

Answer 34

early afterdepolarization

Question 35

associated with pause-dependent VT (electrolyte disturbance, Long QT, antiarrhythmic drugs)

Answer 35

Early afterdepolarization

Question 36

occurs during phase 4 of the action potential

Answer 36

delayed afterdepolarization

Question 37

associated with catechol-dependent VT, triggered by exercise or emotional stress

Answer 37

delayed afterdepolarization

Question 38

right ventircular outflow tract, is triggered by exercise or stress

Answer 38

RVOT Tachycardia

Question 39

has LBBB morphology with inferior QRS axis.

Answer 39

RVOT

Question 40

RVOT is typically induced with

Answer 40

ispoproternal

Question 41

RVOT is typically terminated with

Answer 41

adenosine

Question 42

originates in LV Septum, has RBBB morphology with left superior QRS Axis

Answer 42

Idiopathic LV tachyacardia (ILVT)

Question 43

Idiopathic LV tachycardia QRS morphology is preceded by distinct His Spike QRS complex is

Answer 43

100-140 ms

Question 44

rare condition - has multiple arrhythmogenic sites and slow conduction zones, LBBB morphology

Answer 44

Aarhythmogenic right ventricular dysplasia (ARVD)

Question 45

RV dilation or RV & LV dilation (PVCs may be present)

Answer 45

Idiopathic dilated cardiomypathy

Question 46

areas of slow conduction around scar tissue

Answer 46

VT after repair of congential defect