Pharm: Module 8 Sympathetic/Parasympathetic Flashcards
describe sympathetic
adrenergic receptors energize fight or flight increased HR and RR alpha and beta receptors
describe parasympathetic
cholinergic receptors
stabilize
nicotinic/muscarinic receptors
enhance
agonist
block (opposite effect)
antagonist
describe alpha 1 adrenergic agonist receptors
increase cardiac contractility and vasoconstriction
dilates pupils, decreases salivary gland secretion
increase bladder and prostate contraction
describe alpha 2 adrenergic agonist receptors
inhibits norepinephrine release
promotes vasodilation and decreases BP
decreases GI motility and tone
describe beta 1 adrenergic agonist receptors
increase cardiac contractility and HR
increaser renin secretion and BP
describe beta 2 adrenergic agonist receptors
decrease GI tone and motility bronchodilation increase blood flow to skeletal muscles relaxes SM of uterus activates liver glycogenolysis(increase of BG)
directly stimulate receptor
direct acting
ie/ epinephrine
is epinephrine selective or nonselective
nonselective alpha 1 (increase in BP), beta 1 (increase HR), beta 2 (bronchodilation)
what are the cautions associated with epinephrine
cardiac dysrhythmias, hypertension, hyperthyroidism, diabetes, pregnancy
what is epinephrine used for
anaphylaxis, anaphylactic shock, bronchospasms, asystole, cardiac arrest, cardiogenic shock, asthma attack
side effects of epinephrine
palpitations, tachycardia, insomnia, hyperglycemia
drug interactions of epinephrine
beta blocker (decrease action), digoxin (dysrhythmias), and TCAS/MAOIS (intensify action)
nursing interventions for epinephrine
monitor BP, HR, urine output
avoid adrenergic nasal spray and cold meds