Cardiac Powerpoint Review Flashcards
Narrorw QRS regular tachycardia is known as
SVT
*if P waves can be seen then its regular tachycardia
If adequate rate control of Afib can not be achieved via medications (BB, CCB, amio or digoxin) it may be necessary to
cardiovert.
SVT treatment
Adenosine 6mg, 12mg
There is a high risk for _______ in patients with Afib.
Stroke
Afib symptoms
- lightheaded, dizziness, fatigue
- CP, dyspnea
- LE swelling
Afib treatment
- Warfarin
-DOACs (Dbigatran, Rivaroxaban, Apixaban, Edoxaban) - Triple therapy if increased risk for stroke (oral anticoagulant, clopidogrel, ASA)
Paroxysmal afib
- self terminating within 48 hrs
persistent AFib
- Lasts longer than 7 days
- including those terminated by cardioversion
Why we synchronize in direct current cardioversions…
Avoid the post-shock complication of VFib or VT!
CHB stable sequence
Transcutaneous pads- evaluate for reversibility
non reversible- needs Pace maker
reversible- treat cause
Unstable CHB sequence
atropine- transcutaneous pads-
if Low BP–> IV Dopamine
if HF—> IV Dobutamine
normal BP, no HF–> transvenous pacing
when stabilized assess for reversible causes—- none or CHB persists (PPM)
In CHB : TREAT _________CAUSES
UNDERLYING
Support symptomatic bradycardias/ heart blocks with ________until permanent pacemaker (PPM) is indicated
temporary pacing
Indication for permanent pacemaker
SYMPTOMATIC bradycardias and heart blocks that are NOT reversible or time-limited
Others: Sick sinus syndrome, tachy-brady syndrome, chronic Afib with slow ventricular response, hypersensitive carotid sinus syndrome
Symptoms are: dizziness, syncope, near-syncope, hypotension, lightheadedness, decrease in exercise tolerance
in Monomorphic VT all ____ look alike
QRS COMPLEXES
Monomorphic VT treatment
Pulseless: Defibrillate
symptomatic: sedate and cardiovert
Antiarrythmic drugs:
- AMio bolus mg IV or 300 mg (IF PULSELESS)
- Lidocaine
- procainamide up to 17 mg/kg at 20 mg/min
Indication for ICD would be
recurrent VT
- (Primary) Low EF due to ischemic heart disease ( < 35, <30)
- (secondary) sudden cardiac arrest due to VT or VF, unexplained syncope, stable/unstable VT
Long term treatment for VT would include
BB, sotalol, amiodarone