Arrhythmia Dysrhythmia Pharmacology 
Dr. Smith's ECG Blog
SEPTEMBER 7, 2020
If the rhythm converts and then reverts to tachycardia with either adenosine or electricity, Neither one of those modalities should be attempted until some longer acting pharmacological solution is given. WPW does not always have delta waves on the baseline ECG. This is called "Concealed conduction".
Dr. Smith's ECG Blog
NOVEMBER 19, 2016
myocardial infarction), arrhythmias, valvular pathology, shunts, or outflow obstructions. Smith comment: In a large randomized trial of dopamine vs. norepinephrine (11) for shock which was published after the above-mentioned recommendations, dopamine had more adverse events (especially severe dysrhythmias, and especially atrial fibrillation).
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