The nurse administers an adrenergic blocking agent to a client when assessing the client after administration the nurse expect evidence of what physiologic effect neurotransmitters

Inhibits adrenergic receptors, blocks the actions of endogenous adrenergic neurotransmitters epinephrine and norepinephrine. At the moment there are no known clinical useful anti-dopaminergic actions in the peripheral nervous system, but the blockade of dopaminercial receptors in the central nervous system are of great clinical importance.

Selective alpha 1 adrenergic receptor blockers lower blood pressure by post-synaptic blockage, reversing the vasoconstrictive effect of norepinephrine.

They produce arterial and venous dilation, minute volume limitations, a tendency to decrease blood pressure in standing compared to supine, hydrosaline retention and relaxation of the bladder trigone, improving the

obstructive symptoms of the lower urinary tract

Explanation:

Its use has decreased since the publication of the ALLHAT study (Antihypertensive and Lipid-Lowering Treatment to  Prevent Heart Attack Trial), where alpha blocker was less effective as an antihypertensive and increased incidence  of cerebral events and congestive HF.  The JNC 7 and other guidelines do not routinely recommend the use of alpha blockers in the treatment of  arterial hypertension.

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