ANS pt 2 - slides 18+ Flashcards

1
Q

what explains some of the adverse effects associated with non-selective beta blockers

A

unwanted blockade of beta 2 receptors instead of the targeted beta 1

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2
Q

what are two mixed-acting sympathomimetics that can be used to treat nasal congestion

A

ephedrine
pseudoephedrine

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3
Q

name an alpha 2 antagonist

A

yohimbine

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4
Q

what are beta 1 antagonists used to treat

A

hypertension
angina
arrhythmias

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5
Q

what is the action of alpha 1 antagonists

A

reduces vasoconstriction and peripheral resistance

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6
Q

name 4 uses of alpha 1 agonists

A

control superficial bleeding
reduces congestion
mydirasis
hypotensive emergencies

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7
Q

how do you treat toxicity of amphetamine

A

acidification of urine

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8
Q

what is a use of clonidine (alpha 2 agonist)

A

antihypertensive

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9
Q

what are the 3 kinds of indirect acting sympathomimetics

A

displacement drugs

inhibit reuptake of NE from synapse

Inhibit NE breakdown in neurons

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10
Q

adverse effects of beta 1 blockade

A

bradycardia
HF
hypotension

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11
Q

what are some adverse effects of amphetamine

A

insomina
irritability
psychosis
anorexia
tacchycardia
dependance
tolerance

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12
Q

name 7 uses for beta antagonists

A

angina
hypertension
HF
post MI
arrhythmias
stage fright/anxiety
migrane prophylaxis

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13
Q

what is the mechanism of adrenergic antagonists

A

generally reversible blockade of adrenergic receptors

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14
Q

what is an adverse effect of alpha 1 agonists

A

excessive inc in BP

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15
Q

what is a reversible non-selective alpha antagonist

A

phentolamine

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16
Q

what receptors can dopamine bind to

A

Dopamine receptors
alpha 1
beta 1
beta 2

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17
Q

what type of drug is propranolol

A

non-selective beta antagonist

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18
Q

what is the use of mirabegron

A

reduce urinary urgency/incontinence

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19
Q

what are 3 uses of amphetamine

A

stimulates CNS
treat ADD
decrease appetite

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20
Q

what kind of drug is yohimbine

A

alpha 2 antagonist

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21
Q

what receptors can adrenaline bind to

A

alpha and beta adrenergic receptors

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22
Q

what’s a example of a beta 1 agonist

A

dobutamine

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23
Q

name an alpha 1 agonist

A

phenylephrine

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24
Q

what is a use for dobutamine (beta 1 agonist)

A

treat acute heart failure

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25
what is the effect of salbutamol
dilates bronchi
26
how do displacement drugs work
stimulate release of stored NA from vesicles into the synapse
27
what is the use of alpha 1 antagonists
treats hypertension
28
adverse effects of beta 2 blockage
bronchoconstriction inhibition of hepatic glycogenolysis inhibition of hypoglycemia symptoms inhibiton of lipolysis inhibition of peripheral vasodilation of BVs
29
what receptors can noradrenaline bind to
alpha 1,2 beta 1
30
name 3 alpha 1 antagonists
prazosin terazosin doxazosin
31
what is the name for the NE-secreting tumour
pheochromocytoma
32
what is isoproterenol
non selective adrenergic agonist
33
what is the effect of dobutamine
inc HR inc force of contraction
34
what is a example of a alpha 2 agonist
clonidine
35
what are 3 adverse effects of salbutamol
palpitations termor hyperglycemia
36
name 2 uses of yohimbine
erectile dysfunction lipolytic agent (low evidence)
37
what kind of drug is phentolamine
reversible non-selective alpha antagonist
38
what is the non selective adrenergic agonist and what receptors does it work on
isoproterenol beta 1 and beta 2
39
name a non-selective beta antagonist
propranolol
40
what are the uses of non-selective alpha antagonists
treating NE secreting tumour
41
3 things should you be aware of before administering epi
arrhythmias hypertension diabetes
42
what two drugs inhibit reuptake of NE from synapse
cocaine tricyclic antidepressants
43
name 4 uses for epi
treat anaphylactic shock cardiac arrest control bleeding limits diffusion of medication by local vasoconstriction
44
prazosin terazosin doxazosin are what kind of drugs
alpha 1 antagonists
45
what kind of drug is phenylephrine
alpha 1 agonist (adrenergic)
46
what type of drug is mirabegron
beta 3 agonist
47
what type of drug is salbutamol
beta 2 agonist
48
what is a example of a beta 3 agonist
mirabegron
49
what is an irreversible non-selective alpha antagonist
phenoxybenzamine
50
what is the use of salbutamol
relieves asthma caused by bronchospasm
51
what is the action of yohimbine
can inc perfusion of certain tissues
52
what is an example of a beta 2 agonist
salbutamol
53
what is dobutamine
beta 1 agonist
54
what is the effect of alpha 2 agonists
less NA release - less sympathetic effects
55
name an adverse effect of alpha 1 antagonists
orthostatic hypotension +reflex inc in HR
56
what drugs inhibits NE breakdown in neurons
MAOIs
57
what kind of drug is phenoxybenzamine
an irreversible non-selective alpha antagonist
58
what does phenylephrine do (a1 agonist)
vasoconstriction - inc BP other a1 effects
59
what are 2 adverse effects of beta 1 agonists
arrhythmias tachycardia
60
what is a pheochromocytoma
NE-secreting tumour
61
how does clonidine work
presynaptic negative feedback that results in decreased NA release
62
what are some adverse effects of clonidine (and other alpha 2 agonists)
hypotension xerostomia sedation
63
what is the effect of miragbegron
relaxation of detrusor muscle
64
what are 3 beta 1 antagonists
metoprolol atenolol bisoprolol
65
what are some adverse effects of blockage of all 3 beta receptors
sedation lethargy erectile dysfunction nightmaress
66
what is clonidine
alpha 2 agonist
67
what are the 3 actions of beta 1 antagonists
dec HR and contractility dec renin secretion dec activation of renin-angiotensin-aldosterone system
68
what are some adverse effects of yohimbine
tachycardia hypertension hypoglycemia