It is advisable to avoid administering anti-arrhythmic medication to patients experiencing paroxysmal tachycardia or rapid irregular pulse until an ECG record has been obtained. In cases of bradycardia, especially if accompanied by hypotension, treatment should involve an intravenous dose of atropine sulfate, which can be repeated if needed. If there is a risk of asystole or if the patient remains unstable despite atropine sulfate, intravenous infusion of adrenaline/epinephrine should be administered, with the dose adjusted based on the patient’s response.