Ep General

Question 0

Recordings egm

Answer 0

Distal to proximal if the catheter

Question 1

EP test indications

Answer 1

Syncope in structural heart disease
Wide complex tachycardia 
Assessment of Brady cardia
Sudden death 
For mapping

Question 2

Hv interval

Answer 2

35-55

Question 3

EAD

Answer 3

Phase 3
Bradycardia
Torsades
Idiopathic VT

Question 4

Dad

Answer 4

Phase 4
Digitoxicity
Ca, catecholamines excess
Cpvt

Question 5

Increased automaticity

Answer 5

Sinus tach
AT focal
AIVR
Idiopathic VT

Question 6

Reentry

Answer 6

Afl
Avnrt
Avrt
MMVT

Question 7

Qrs

Answer 7

Narrow if you use normal conduction

Wide if it uses Accessary pathway

Question 8

Atrial ectopy

At, avrt,avnrt

Answer 8

Ventricular ectopy

AVRT

Question 9

Short RP
AvNRT
Orthodontic avrt

Answer 9

Long RP
Atrial tachycardia 
Atypical avnrt
Orthodontic avrt with slow pathway
Sinus tachycardia

Question 10

Atrial tachycardia

Answer 10

Does not use normal conduction

Question 11

Avnrt

Answer 11

Terminate with adenosine when you block the AV node

Question 12

Vt

Answer 12

R in v1 >40 ms
>60 msec from qrs onset to S nadir
Notched down stoke S wave in V1V2
Any Q in V6

Question 13

Brugada criteria

Answer 13

Absence or RS complex VT
R to S interval >100 msec one lead VT
AV dissociation VT
VT morphology in V1-2 or V6 VT

Question 14

Intra cardiac tracing

Answer 14

More V’s than A’s VT

Question 15

Cardiac action potential

Answer 15

Phase o sodium 
Phase 1 transient outward current
Phase 2-3 calcium in potassium out
Phase 4 ca k reequilibriate 
Phase 4 If pacer

Question 16

Vaughn Williams

Answer 16

Class 1 sodium channel
Inhibit depolarization slow conduction
Class 3 increase refractoriness and prolong repolarization

Question 17

Sodium blockers

Answer 17

Type1A quinidine 
Intermediate kinetics
Prolong APD/QT torsades 
1b Lido rapid kinetics
1c slow kinetics qrs prolonged

Question 18

Class 3 potassium channel blockers

Answer 18

Block potassium channels mediating I kr, Iks
Prolonged refractory/ APD
Ibitelide also prolongs sodium channel opening

Question 19

Prevention of VT

Answer 19

Sotolol sword study increase death
Dronedarone andromeda increase death
Amio gesica, emiat, camiat mixed results

Question 20

SCD-Heft 
Lvef <35% class 2,3

Answer 20

Icd therapy better than amio

Question 21

Vt VF

Answer 21

Lido and procan and bretylium removed from CPR

Amio improves survival ARREST

Question 22

To prevent icd shocks

Answer 22

Amio>sotalol >betablockers

Consider cathter ablation for mmvt

Question 23

Indication for use svt

Answer 23

Class 1 vagal, adenosine, calan

Class 2 beta blockers amio dig

Question 24

Chronic medal therapy svt without structural heart disease

Answer 24

BB, ca blockers Flecanide rythmol Sotalol Amio

Question 25

Svt LVH

Answer 25

Dronedarone amio

Question 26

Cad

Answer 26

Defetolide sotalol Amio Dronedarone

Question 27

Heart failure

Answer 27

Amio | Defetolide

Question 28

Maintain NSR

Answer 28

Amio>sotalol> rythmol >Dronedarone

Question 29

Dronedarone

Answer 29

Don't use in CHF and persistent afib

Question 30

Renal

Answer 30

Sotolol Dig Difetilide

Question 31

Hepatic

Answer 31

Lido Amio Rythmol

Question 32

CYP2D6 deficiency

Answer 32

Enhanced bb activity with rythmol

Question 33

Increase DFT

Answer 33

Mexiletine Flec/ rythmol Amio

Question 34

Decrease DFT

Answer 34

Sotolol | Dofetilide