Arrhythmia treatment Flashcards
when to treat bradycardia
<40 bpm or symptomatic
treat bradycardia with
atropine IV
no response to atropine in bradycardiA?
temporary pacing wire
atropine mechanisms of action
blocks neuroeffector transmission in the parasympathetic division of the autonomic nervous system by competitive antagonism of muscarinic acetylcholine receptors.
what other condition is atropine used in
anticholinesterase poisoning to reduce parasympathetic activity e.g. bradycardia.
sick sinus syndrome typically causes what
inappropriate sinus bradycardia
what may occurs with sick sinus syndrome
AF and thromboembolism
if sick sinus syndrome is symptomatic we
pace
atrial flutter or fibrillation treatment and aim
control ventricular rate
BB
(digoxin or amiodarone alternatively)
Atrial fibrillation ECG
no P waves and irregular baseline
normal shape QRS
atrial flutter ECG
sawtooth baseline
SVT narrow or broad complex
narrow
SVT treatment
vagotonic manoeuvres eg valsalvo followed by IV adenosine or verapamil
SVT if compromised
DC shock
maintenance of SVT
BB or verapamil
