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NURA 221 ADRENERGIC TEST QUESTIONS WITH CORRECT ANSWERS
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NURA 221 ADRENERGIC TEST QUESTIONS WITH CORRECTANSWERS
Adrenergic stimulation gives a similar response to __________ and is therefore
referred to as_____ - ANSWER sympathetic nervous system activation;
sympathomimetic
what are the five main adrenergic receptors? - ANSWER alpha 1, alpha 2, beta 1,
beta 2, Dopaminergic
effects of alpha 1 receptor stimulation (2) - ANSWER 1. profuse, body-wide
vasoconstriction
2. Mydriasis
Primary uses for Alpha 1 stimulants (agonists) - ANSWER Hypotension
Homeostasis (?)
Nasal Decongestion (caused by vasoconsctrion of blood vessels)
Adjunct to local anaesthesia
stimulate mydriasis (for eye exams) or correct miosis
the primary location of alpha 1 receptors - ANSWER peripheral blood vessels
explain stimulating alpha 2 receptors (administering alpha 2 agaonist) causes/ -
ANSWER Peripheral alpha 2 receptor stimulation has minimal
consequences/action
Alpha 2 receptors stimulated within CNS lead to reduction of sympathetic outflow
to heart and vessels, theoretically blocking alpha 1 receptors and leading to
vasodilations within peripheral vessels
End result of alpha 2 receptor stimulation (agonist) - ANSWER hypotension
(potentiall severe, life threatening)
, Analgesia (pain relief
Where are Beta 1 receptors located? - ANSWER Heart
Beta 1 receptor activation causes? (2) - ANSWER increased HR, increased
concratility
Primary use for beta 1 activation? - ANSWER cardiac arrest
heart failure
shock
Atrioventricular block
primary location of Beta 2 receptors? - ANSWER smooth muscle (think bronchial
and uterine muscles)
effects of beta 2 activation? - ANSWER Dilation of bronchial smooth muscles
Relaxation of uterine muscle
Activation of glyogenolysis within the liver
Primar uses for Beta 2 agonists - ANSWER Asthma
Delay of preterm labor
what is a potential concern with prolonged beta 2 agonist therapy? - ANSWER may
cause very high blood sugar
epinephrine stimulates what receptors? - ANSWER alpha 1, alpha 2, beta 1, beta 2
What is the exception for epinephrine adrenergic activation? - ANSWER Does not
stimulate vasoconstriction in liver and smooth muscles, may actually vasodilate
there instead
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