<prompt> Reflex tachycardia is most likely to occur after the systemic administration ofalbuterolmethoxaminephenylephrinepropranolol  <response>: Although used primarily via inhalation for asthma, systemic effects of albuterol include vasodilation due to its b2 receptor activation. This can result in a decrease in PVR and mean BP, which elicits a reflex tachycardia. Methoxamine and phenylephrine are a- receptor activators causing vasoconstriction, which would result in reflex bradycardia. Ganglion blockers trimethaphan prevent autonomic reflexes, and a reflex increase in heart rate could not occur in the presence of a beta blocker propranolol. 