Cardio arrhythmia Flashcards
little box in ecg?
.04 seconds. One big box is .2 econds
1st degree heart block is what?
Tx?
Longer Pr. greater than 0.2 seconds (one big box)
No tx
2nd degree heart block type 1 is what?
Caused by what?
Wenckeback (w for warning). One-kebock (to remember it is mobitz type 1.
Progressively lengthening then dropped beat.
Caused by meds slowing heart rate. B blockers, dig, calcium channel blockers
Treatment not necessary unless symptomatic bradycardia. Otherwise not concerning
2nd degree type 2?
Randomly skipped without warning. Problem with av or bundle system
Can progress so often given pace maker
3rd degree heart block?
Hypotension. No P wave QRS symptoms
NEEDS PACING
What do you need pacing for?
2nd degree Mobitz II and 3rd degree
Supraventricular tachy tx?
Might see P waves in T waves. Might see delta wave in WPW
Carotid or valsalva IV adenosine (tx and dx) Calcium channel or beta blockers, cardioversion or ablation!
Multifocal atrial tachycardia ekg finding
EKG variable P wave morphology.
HR greater than 100
Tx: verapamil or dilt. Beta blockers. Correct magnesium and hypokalemia
Surgery like ablation
Endocrine cause of A fib you want to check?
HYPERTHYROIDISM!
A fib less than 48 hours? Tx
Cardioversion. If longer than that, don’t convert b/c risk of thrombus. IF LONGER you can anticoagulant then cardiovert
Chronic a fib workup and quick tx
Anticoag and transesophageal echo
NEED HEPARIN BRIDGE!!!
Tx of chronic afib?
Rhythm control with amiodarone or sotalol
OR RATE control, with beta blocker or nondihydropyridine or dig
If staying in AFIB, need anticoag
Tx of a flutter?
Rate control with calcium channel blockers
Cardioversion
Catheter ablation if need be
CAREFUL can become afib
When are PVCs concerning?
more than 3 per minute or three in a row or more
Usually don’t tx
Vtach tx?
Cardioversion. may need pacemaker if recurrent
