Adrenergic Blocking Drugs Flashcards
Alpha adrenergic
Alpha receptors of the adrenergic nerves that control the vascular system
Anti adrenergic
Blocks the neurotransmission of the sympathetic nervous system
Beta adrenergic
Beta receptors of the adrenergic nerves that primarily control the heart
Cardiac arrhythmia
Abnormal rhythm of the heart aka cardiac dysrhythmia
First dose effects
Marked adverse reaction with the first dose
Orthostatic hypotension
Decrease in blood pressure occurring after standing in one place for an extended period
Pheochromocytoma
Tumor of the adrenal medulla characterized by the hypersecretion of epinephrine and norepinephrine
Sympatholytic
Blocking the sympathetic nervous system
Alpha adrenergic blocking drugs MOA
Causes vasodilation by relaxing the smooth muscle of blood vessels
Alpha adrenergic blocking drugs uses
Hypertension during preoperative preparation, hypertension caused by pheochromocytoma, prevent or treat tissue damage caused by extravastation of the drug dopamine
Alpha adrenergic blocking drug adverse reactions
Weakness, orthostatic hypotension, cardiac arrhythmias, hypotension, and tachycardia
Alpha adrenergic blocking drugs contraindications
Coronary artery disease
Alpha adrenergic blocking drugs precautions
Pregnancy (cat C), lactation, after a recent myocardial infarction, and with renal failure or a Raynaud disease
Alpha adrenergic blocking drugs interactions
When phenylalanine in’s given with epinephrine, there is decreased vasoconstrictor and hypertensive action
Alpha/beta adrenergic blocking drugs MOA
Block stimulation of both alpha and beta adrenergic receptors, resulting in peripheral vasodilation