Exam 3 review Flashcards
Most common type of ventricular arrythmia?
Sinus Tachycardia
Sinus Tachycardia BPM?
> 100 bpm
Sinus Tachycardia #1 tx?
Valsalva
Does SVT have P-waves?
NO!
Rate of SVT?
150-250bpm
What type of beat initiates SVT?
Premature supracentricular beat (atrial or junctional)
SVT driven by what type of circuit?
Reentrant circuit looping within AV-node (AVNRT)
3 causes of SVT?
- Alcohol
- Coffee
- Excitement
First tx for SVT? Second?
First=valsalva
Second=adenosine
QRS-complex of SVT narrow or wide?
Narrow
Most common form of SVT?
AVNRT
Where in heart does AVNRT originate from?
AV-node or ventricles
Does AVNRT have a P-wave? Why?
No. Originates outside of SA-node so no P-wave!
AVNRT onset and cessation?
Sudden onset, sudden cessation
What does AVNRT feel like?
Like heart pounding out of chest
AFib regular or irregular rhythm?
Irregular
AFib have P-waves?
No!
AFib QRS-complex wide or narrow?
Narrow
AFib have multiple _______ circuits
Multiple reentry circuits
5 conditions associated with AFib?
- HTN
- Mitral valve dz
- PE
- Thyrotoxicosis
- Pericarditis
Where does an ectopic rhythm originate from?
Focus other than SA-node
What is WPW’s waveform called?
“Delta-wave”
WPW’s bundle called?
“Bundle of Kent”
Is WPW due to a small or large area of premature ventricular depolarization?
Small
What 2 types of AVRT can WPW result in?
- Orthodromic AVRT
2. Antidromic AVRT
Most important reason to recognize WPW?
ASx and can result in sudden cardiac death?
Which arrythmia in combo with WPW can degrade into VFib and death?
AFib
8 indications for pacemaker?
- Symptomatic bradycardia
- Conduction disorders in throes of MI
- 2º Mobitz Type II
- 3º complete heart block
- Pauses > 3 second
- Sick Sinus Rhythm
- Afib w/RVR
- Recurrent tachyarrythmia
