Ventricular Tachycardia Flashcards
what are the two clinical indications where the VT guideline should be utilized
This guideline is for adults with ventricular tachycardia (VT), or an undifferentiated broad complex tachycardia with a ventricular rate greater than or equal to 150/minute, provided the patient is not in cardiac arrest.
management of pt in VT
- ECG plus pads on anterior/posterior
- identify level of comp and call for ICP
- ensure OD not involved, if so move to poisoning guideline
management of VT with mild to no comp
ICP administer amiodarone
management of VT with moderate to severe comp
if obeying commands: ketamine + cardiovert
if not obeying commands: cardiovert max souls in sync mode
management if patient is in torsards
cardiovert plus ICP for magnesium
what monitoring should be on prior to cardioverting
Sp02, capnography, 3 led, BP and prep arrest gear
indication for cardioversion
presenting with tachydysrhythmia
AND
severe comp ( or mod in VT)
when is ICP backup needed for pts in VT
for all patients that have VT even if it self resolves
what is broad complex defined as
QRS wider then 120 bpm
how many PVC’s is considered VT
any more then 3 consecutive PVCs
patients with consigns VT will often c/o
chest pain, dizziness and SOB
what are the 2 ways an electrical signal can start in the ventricles
focal; where a specific area of the ventricle has abnormal automaticity due to stress (ischemia, medications, Electrolytes)
Re-entrant; stress to the cardiomyocytes ( heart muscle cells) can lead too changes in condition )
how dose cardio version revert disregulated rhythms
depolarises a bulk of the cardiac muscle simultaneously, allowing the pacemaker of the region to regain control
why do we cardivert sync to QRS
because that’s when the biggest depoliration occurs, if shocked in the repol stage can cause cardiac arrest
outline some complications of cardio version
-disloadge clots if been causing stroke of TIA
- development of new arrythmia
- complications with sedation
