Tachyarrhythmias - Quiz 2 - SPEND MORE TIME ON THIS Flashcards
(58 cards)
1
Q
treatment of acute AVRT
A
- vagal maneuvers
- adenosine
2
Q
treatment of atrial flutter
A
- anticoagulation for stroke prevention
- AV nodal blockers for rate control
- catheter ablation
3
Q
diagnosis from EKG
A
AV nodal reentry tachycardia
- P wave immediately after (or within QRS)
4
Q
what do you ablate for treatment of atrial flutter
A
- cavo-tricuspid isthmus
5
Q
diagnosis of EKG
A
AF with pre-excitation
6
Q
diagnosis from EKG
A
- AVRT (SVT)
- P wave immediately after QRS
7
Q
reasons why the conduction would not be travelling through the normal conduction system?
A
- bundle branch block (aberrancy)
- pre-excitation (accessory pathway)
- originates in the ventricle
8
Q
treatment of chronic VF
A
- need implantable defibrillator if no reversible cause
9
Q
treatment of AF with pre-excitation
A
- DC cardioversion
- then ablation of accessory pathway
10
Q
SVT due to
A
- AV nodal re-entry tachycardia
- AV re-entry tachycardia
- unifocal atrial tachycardia (rarest)
11
Q
AV nodal reentry tachycardia during sinus beats
A
- conduction occurs via fast pathway
- conduction via slow pathway is blocked
12
Q
tachyarrhythmias defined as
A
- heart rate > 100 BPM
13
Q
diagnosis from EKG
A
- atrial flutter (variable conduction)
look at V1 and see the 2:1 and then 4:1 flutter
14
Q
AF with pre-excitation due to
A
- AF conducts to ventricle through accessory pathway at very rapid rates
15
Q
diagnosis from EKG
A
- sinus tachycarida with RBBB
- HR > 100
- sinus P wave (upright in I, II, aVF)
- T wave inverted in V1 and V2
16
Q
example of polymorphic ventricular tachycardia
A
- torsade
17
Q
conditions with regular narrow (QRS <120) tachycardia
A
- sinus tachycardia
- atrial flutter
- SVT
- junctional tachycardia
WITH REGULAR AND NARROW YOU WANNA SAY “YASS” BUT INSTEAD YOU SAY “JASS”
18
Q
atrial flutter- pattern on the EKG
A
- sawtooth pattern
19
Q
treatment of chronic AVRT
A
- catheter ablation of accessory pathway
20
Q
diagnosis from EKG
A
atrial flutter (4:1 conduction)
21
Q
diagnosis from EKG
A
- sinus tachycardia
- HR > 100
- sinus P wave (upright in I, II, and aVF)
22
Q
diagnosis from EKG
A
Atrial fibrillation
- irregular QRS activity
- no consistent atrial activity
23
Q
rate of atrial fibrillation
A
- variable rate
- depends on refractoriness of AV node
24
Q
torsade is seen in
A
- patients with underlying long QT
- predisposing to EADs
25
AV nodal reentry tachycardia is due to
- dual AV nodal conduction
26
AV nodal reentry tachycardia during tachycardia
- premature atrial contraction blocks in fast pathway
- conducts through slow
- retrograde conduction through fast
- reentry
27
where would you see this?
- AV nodal reentry tachycardia
- extra P wave right after QRS
28
role of adenosine
- transiently block AV node
- causes cell hyperpolarization via A1 receptor
29
rhythm control for symptomatic AF
- DC cardioversion
- antiarrhythmic drug therapy to suppress abnormal automaticity and disrupt reentry
- catheter ablation
30
treatment of chronic ventricular tachycarida
- implantable defibrillator
- antiarrhythmic drug therapy
- catheter ablation
31
AF maintained by
- functional reentry
32
diagnosis from EKG
- long QT
33
diagnosis of EKG
ventricular fibrillation
- wide, irregular tachycardia
34
atrial flutter - atrial cycle length of approximinately
- 300 bpm (200 ms)
35
typical atrial flutter due to
- re-entrant arrhythmia of the right atrium involving cavo-tricuspid isthmus
IN ENGLISH
the loop is just going around and around the tricuspid valve
36
conditions with an irregular narrow (QRS \<120) tachycardia
- atrial fibrillation
- atrial flutter with variable block
- multifocal atrial tachycardia
IRREGULAR AND NARROW SAYS "MAA"
DR. MAA WAS A BIT IRREGULAR AND SO STRAIGHT EDGE SO WE'LL CALL HER NARROW HERE
37
wide QRS indicates problem where?
- conduction NOT travelling through normal conduction system
38
AF initiated by
- automaticity or tiggered activity at pulmonary venous muscle sleeves or nonpulmonary venous sites
39
treatment of acute torsade
- defibrillation
- magnesium
- rapid pacing
40
treatment of chronic torsade
- implantable defibrillator unless reversible cause
41
diagnosis from EKG
- atrial flutter (2:1) conduction
42
treatment of chronic AVNRT
- AV nodal blocker
- catheter ablation of slow pathway
43
treatment for atrial fibrillation
- anticoagulation for stroke prevention
- AV nodal blockers as necessary
44
conditions with irregular wide (QRS \> 120) tachycardia
- ventricular fibrillation
- polymorphic VT
- atrial fibrillation with aberrancy
- atrial fibrillation with pre-excitation
IRREGULAR AND WIDE LIKE A VAPE CLOUD. WE GET IT BRO YOU VAAP
45
what is the preferred method of blocking AV nodal transmission if vagal maneuvers are ineffective?
- adenosine as a rapid IV push
46
ventricular tachycarida in patients with structural heart disease
- due to reentry around scar
47
treatment of acute VF
- CPR
- defibrillation
- treat underlying cause
48
treatment of sinus tachycardia
- treat underlying cause
49
the most common tachyarrhythmia
- atrial fibrillation
50
diagnosis from EKG
- ventricular tachycardia
- look for P wave not connected to QRS
Due to rhythm originating in the ventricle
51
diagnosis based on EKG
torsade de points
52
diagnosis from EKG
AVRT (SVT)
53
treatment for someone in acute AVNRT
- vagal maneuvers
- adenosine
54
conditions with regular wide (QRS \> 120) tachycardia
- ventricular tachycardia
- SVT with aberrancy
- SVT with pre-excitation
- hyperkalemia
VSSH
REGULAR AND WIDE LIKE A VOLUPTOUS HiSS
THINK OF A REGULAR FAT SNAKE
55
ventricular tachycardia in patients without structural heart disease
- due to delayed afterdepolarizations (triggered arrhythmia)
56
diagnosis of EKG
- WPW sinus rhythm
- look for delta wave
57
treatment of acute ventricular tachycardia
- ACLS
- CPR, defibrillation
58
atrial flutter - ventricular rate
- at a multiple of 300 bpm
THIS IS A BIG CLUE FOR ATRIAL FLUTTER
