Test 2 Flashcards
What stimulates the sympathetic nervous system
Neurotransmitters
What is the sympathetic nervous system
Fight or flight
What are the Neurotransmitters
Catecholamines
Norepinephrine
Epinephrine
Dopamine
What halts the sympathetic nervous system
Enzymes re uptake pump liver metabolism
What are the two enzymes that halt the sympathetic nervous system ?
MAO
COMT
What are the receptors that stimulate sympathetic nervous system
Alpha 1 alpha 2 beta 1 beta 2
What does the alpha 1 do
Primarily smooth muscle contraction vasoconstriction
decrease motility of GI tract
What does the beta 1 do
Increase cardiac output
What does beta 2 do
Relax smooth muscles
Dilate arteries
What are the adrenergic agents (agonists)
Alpha 1 beta 1 beta 2
What does adrenergic mean
Working in sympathetic nervous system
What is the indication of alpha 1
Hypotension
Nasal congestion
What is the indication for beta 1
Cardiac arrest
Heart failure
Shock
What is the indication for beta 2
Asthma
Premature labor
What are the contradictions of the adrenergic agents
Known allergy and hypertension
What are the side effects of adrenergic agents
HA, restlessness, excitement, insomnia, euphoria, vasoconstriction, hypertension, tachycardia, palpations, dysthymias
What are the interactions of adrenergic agents
Adrenergic blocking agents
Anesthetics
TCA
depression
What do the adrenergic blocking agents do
Block receptors to stop adgernergic response
What are indications of alpha 1 blockers
Hypertension
BPH
What are indications of beta blockers
Angina Hypertension Dysthymias Migraines Glaucoma
What are the contradictions of alpha blockers
Drug allergy, peripheral vascular disease, CAD, renal or liver diseass
What are contradictions of beta blockers
Drug allergy heart failure heart block, bradycardia, severe pulmonary disease
What are the side effects of alpha blockers
Based on effects on vasculature
What are the side effects of beta blockers
May mask hypoglycemia
Angina or MI if withdrawn suddenly