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
