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Board Basics Review > Supraventricular Tachycardia > Flashcards

Supraventricular Tachycardia Flashcards

1
Q

MC SVTs aside from AF and atrial flutter?

A
  • AVNRT
  • AVRT
  • atrial tachycardia
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2
Q

when is the QRS complex wide in SVT?

usually narrow-complex tachycardia

A
  • BBB
  • aberrancy
  • pacing
  • anterograde accessory pathway
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3
Q

MC paroxysmal SVT

A

AVNRT

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4
Q

narrow-complex tachycardia:

  • possibilities if REGULAR rhythm
A
  • ST
  • AVNRT
  • AVRT
  • AT
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5
Q

narrow-complex tachycardia:

  • possibilities if IRregular rhythm
A
  • atrial flutter
  • AF
  • MAT
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6
Q

narrow-complex tachycardia:

  • P wave morphology same as sinus
  • seen before EVERY QRS complex
A

ST

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7
Q

narrow-complex tachycardia:

  • P wave just after QRS (pseudo R’ in lead V1) or buried in QRS
A

AVNRT

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8
Q

narrow-complex tachycardia:

  • short RP interval
A

AVRT

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9
Q

narrow-complex tachycardia:

  • long RP interval
A

AT

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10
Q

narrow-complex tachycardia:

  • flutter waves in leads 2, 3, aVF, and V1
A

atrial flutter

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11
Q

narrow-complex tachycardia:

  • irregular baseline
  • NO P waves
A

AF

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12
Q

narrow-complex tachycardia:

  • at least 3 different morphologies of P wave
A

MAT

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13
Q

maneuvers to terminate SVT

A
  • Valsalva maneuver
  • carotid sinus massage
  • facial immersion in cold water
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14
Q

which med can be used to terminate SVT and help dx etiology?

A

adenosine

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15
Q

if SVT terminates w/ adenosine, most likely etiology?

A
  • AV node dependence; AVNRT and AVRT
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16
Q

if SVT does NOT terminate w/ adenosine, most likely etiology?

A
  • continued atrial activity (P waves); atrial flutter and atrial tachycardia
17
Q

rate control for atrial tachycardia w/ which meds?

A
  • BBs

- CCBs

18
Q

prevent recurrent AVNRT w/ which meds?

A
  • BBs

- CCBs

19
Q

next step for AVNRT if resistant to or intolerant of drug therapy?

A

catheter ablation

20
Q

tx for MAT

A
  • correcting associated pulmonary or cardiac disease -
  • correcting hypoKalemia
  • correcting hypoMAGnesemia
21
Q

DOC for MAT if symptomatic or have complications such as HF or CP 2/2 ischemia

A

metoprolol

22
Q

2nd DOC for MAT if symptomatic or have complications such as HF or CP 2/2 ischemia in pts w/ BRONCHOSPASTIC DZ

A

verapamil

23
Q

DON’T BE TRICKED

  • which med can induce bronchospasm in pts w/ reactive airways dz?
A

adenosine

24
Q

which 2 arrhythmias SHOULD NOT be tx’d w/ adenosine?

A
  • irregular wide-complex tachycardia

- polymorphic tachycardia

25
Q

FIRST-LINE therapy for symptomatic AVRT (WPW syndrome)

A

catheter ablation

Board Basics Review (24 decks)

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