Cardiac Flashcards
1
Q
What EKG changes occur with Wolf-Parkinson-White?
A
delta wave (ventricular preexcitation)
PRI < 0.12
wide QRS
possible T wave inversion
2
Q
What is the treatment for antidromic AV nodal reentry tachycardia in WPW?
A
Procainamide and cardioversion
3
Q
What could happen if you increase the refractory period at the AV node in antidromic AVNRT in WPW?
A
You would favor conduction through the accessory pathway and possibly lead to VFib
4
Q
List potential causes of Torades de Pointes:
A
POINTES
phenothiazines
other meds
intracranial bleed
no known cause
type 1 antiarrhythmics
electrolyte disturbances
syndromes (Timothy and Romano-Ward)
5
Q
How can you prevent Torsades?
A
Beta blocker administration with long QT
and/or
ICD placement
