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198 Cards in this Set

  • Front
  • Back
Cholinergic drugs act on receptors that are activated by
a) Norepinephrine
b) Acetylcholine
Acetylcholine
In the sympathetic nervous system AcH binds with _______________ receptors at the pre/post synaptic ganglion
Nicotinic
Pre-synaptic
In the adrenal medulla AcH binds at the pre/post synaptic and the receptor is muscarinic/nicotinic
Pre-synaptic
Nicotinic
The nicotinic receptor is an example of a(n)
a) ion channel
b) g-protein linked
c) steroid
d) enzyme
ion channel
In the parasympathetic nervous system (choose all that apply)
a) AcH binds to muscarinic receptors pre-synaptically
b) AcH binds to muscarinic receptors post-synaptically
c) Has AcH binding both pre-synaptically & post-synaptically
d) AcH binds only at the post-synaptic nicotinic receptor
AcH binds to muscarinic receptors post-synaptically
Has AcH binding both pre-synaptically & post-synaptically
Cholinergic drugs that are indirect acting (choose all that apply)
a) bind & activate the receptor
b) inhibit breakdown of AcH by cholinesterase
c) are also called anticholinesterase drugs
inhibit breakdown of AcH by cholinesterase
are also called anticholinesterase drugs
Clinical uses for cholinergic agonists include (choose all that apply)
a) reversal of neuromuscular blockade
b) management of dementia
c) Management of myastenia gravis
d) treatment of glaucoma
a) reversal of neuromuscular blockade
b) management of dementia
c) Management of myastenia gravis
d) treatment of glaucoma
Synthesis of acetylcholine is a
made possible by (choose all that apply)
a) Ca voltage channels once the reach threshold
b) A Na concentration gradient
c) Choline Acetyltransferase which catalyzes the reaction of choline with Acetyl CoA
d) a negative feedback process
b) A Na concentration gradient
c) Choline Acetyltransferase which catalyzes the reaction of choline with Acetyl CoA
d) a negative feedback process
Release of AcH is facilitated by (choose any that apply)
a) action potential at Ca voltage gated channel
b) Elevated intracellular Ca
c) Elevated intracellular Na
a) action potential at Ca voltage gated channel
b) Elevated intracellular Ca
When M1 or M3 receptors are activated
a) increase IP3 DAG
b) decrease IP3 DAG
c) increase cAMP
d) decrease cAMP
increase IP3 DAG
Cholinergic drugs act on receptors that are activated by
a) Norepinephrine
b) Acetylcholine
Acetylcholine
In the sympathetic nervous system AcH binds with _______________ receptors at the pre/post synaptic ganglion
Nicotinic
Pre-synaptic
In the adrenal medulla AcH binds at the pre/post synaptic and the receptor is muscarinic/nicotinic
Pre-synaptic
Nicotinic
The nicotinic receptor is an example of a(n)
a) ion channel
b) g-protein linked
c) steroid
d) enzyme
ion channel
In the parasympathetic nervous system (choose all that apply)
a) AcH binds to muscarinic receptors pre-synaptically
b) AcH binds to muscarinic receptors post-synaptically
c) Has AcH binding both pre-synaptically & post-synaptically
d) AcH binds only at the post-synaptic nicotinic receptor
AcH binds to muscarinic receptors post-synaptically
Has AcH binding both pre-synaptically & post-synaptically
Cholinergic drugs act on receptors that are activated by
a) Norepinephrine
b) Acetylcholine
Acetylcholine
In the sympathetic nervous system AcH binds with _______________ receptors at the pre/post synaptic ganglion
Nicotinic
Pre-synaptic
In the adrenal medulla AcH binds at the pre/post synaptic and the receptor is muscarinic/nicotinic
Pre-synaptic
Nicotinic
The nicotinic receptor is an example of a(n)
a) ion channel
b) g-protein linked
c) steroid
d) enzyme
ion channel
In the parasympathetic nervous system (choose all that apply)
a) AcH binds to muscarinic receptors pre-synaptically
b) AcH binds to muscarinic receptors post-synaptically
c) Has AcH binding both pre-synaptically & post-synaptically
d) AcH binds only at the post-synaptic nicotinic receptor
AcH binds to muscarinic receptors post-synaptically
Has AcH binding both pre-synaptically & post-synaptically
M1 receptors are found
a) CNS
b) bronchial/smooth
c) skeletal muscle
d) stomach
CNS (nerves)
stomach (parietal cells)
M2 receptors are found
a) Cardiac
b) bronchial/smooth
c) skeletal muscle
d) bladder
Cardiac
bronchial/smooth SPASM (MOSTLY)
skeletal muscle
M3 receptors are found
a) Cardiac
b) smooth muscle
c) skeletal muscle
d) bladder
smooth muscle
bladder (MOSTLY)
Cholinergic agonists cause
a) decreased HR & BP
b) bronchospasm
c) midrasis
d) miosis
e) increased GI motility
a) decreased HR & BP
b) bronchospasm
d) miosis
e) increased GI motility
T/F Muscarinic agonists release Nitric Oxide in the presence of endothelium and cause Vasodilation
TRUE, Nitric Oxide is an endothelial relaxing factor which causes VASODILATION in presence of endothelium
T/F When Muscarinic agonists cause release of Nitric Oxide in absence of endothelium there is Vasoconstriction
TRUE! In absence of endothelium Nitric Oxide causes VASOCONSTRICTION!!
Carbechol
a) a muscarinic/nicotinic cholinergic
b) used to treat glaucoma
c) causes miosis
d) used to treat urinary retention
a) a muscarinic/nicotinic cholinergic
b) used to treat glaucoma
c) causes miosis
Bethanechol
a) a muscarinic cholinergic
b) used to treat urinary/gi retention
c) can cause bradycardia
d) a beta blocker
a) a muscarinic cholinergic
b) used to treat urinary/gi retention
c) can cause bradycardia
Of the following which drug is NOT hydrolyzed by acetylcholinesterase
a) Carbechol
b) Bethanechol
c) Pilocarpine
d) Methacholine
MethaCHOLINE
Pilocarpine
a) used to treat glaucoma
b) can cause central cholinergic syndrome
c) causes miosis
d) crosses BBB
a) used to treat glaucoma
b) can cause central cholinergic syndrome
c) causes miosis
d) crosses BBB (tertiary amine)
Physostigmine
a) reversibly binds to AcHase
b) used to treat Central Anticholinergic Syndrome
c) Can treat delirium
d) is a irreversible bond at both muscarinic & nicotinic receptors
a) reversibly binds to AcHase
b) used to treat Central Anticholinergic Syndrome
c) Can treat delirium
Neostigmine
a) a quartenary ammonium
b) higher affinity for nicotinic than muscarinic receptor
c) causes tachycardia
d) causes bradycardia
quartenary ammonium
higher affinity for nicotinic than muscarinic receptor
causes bradycardia
Edrophonium
a) used to diagnose Myasthenia Gravis
b) used to treat Myasthenia Gravis
c) short acting
d) long acting
used to diagnose Myasthenia Gravis
(because it is short acting)
short acting ( 10-20 minutes)
Pyridostigmine
a) used to diagnose Myasthenia Gravis
b) used to treat Myasthenia Gravis
c) short acting
d) long acting
used to treat Myasthenia Gravis (because it is long acting)
long acting ( 3-6 hours)
Alzheimer's Disease
a) a deficit of cholinergic neurons
b) an over abundance of cholinergic neurons
c) treated with Donezepril
d) treated with Rivastigmine
a) a deficit of cholinergic neurons
c) treated with Donezepril
d) treated with Rivastigmine
Irreversible cholinergic inhibitors
a) organophospates
b) echothiopate
c) prevent breakdown of AcH
d) can be reversed with Atropine
a) organophospates
b) echothiopate
c) prevent breakdown of AcH
d) can be reversed with Atropine
T/F Bethanechol, Carbachol & Pilocarpine bind preferentially at muscarinic receptors
TRUE
T/F pilocarpine & Physostigmine are uncharged tertiary amines that can penetrate CNS
TRUE
Which of the following has the longest duration of action
a) neostigmine
b) physostigmine
c) echothiopate
d) Carbachol
echothiopate
Other names for cholinergic antagonists include
a) cholinergic blockers
b) anticholinesterase drugs
c) anticholinergic drugs
d) parasympatholitics
cholinergic blockers
anticholinergic drugs
parasympatholitics
Atropine, Scopolamine, & Ipratroium are all
a) nicotinic blockers
b) muscarinic blockers
c) ganglionic blockers
muscarinic blockers
Atropine
a) causes midrasis
b) miosis
c) bradycardia
d) increases salivation
causes midrasis
Which of the following drugs crosses the CNS
a) Atropine
b) Scopolamine
c) Glycopyrrolate
a) Atropine
b) Scopolamine
Anticholinergics side effects include
a) urinary retention
b) constipation
c) dry mouth
d) thin secretions
a) urinary retention
b) constipation
c) dry mouth
Which of the following has the most antisialagogue effect
a) atropine
b) glycopyrrolate
c) Scopolamine
Scopolamine
Which of the following causes the most sedation
a) atropine
b) glycopyrrolate
c) Scopolamine
Scopolamine
When treating urinary retention disorders you want a drug that has an affinity for which receptor
a) M1
b) M2
c) M3
d) M4
M3
Non-depolarizing muscle relaxants
a) competitively bind at nicotinic receptors
b) competitively bind at muscarinic receptors
c) can be overcome by increasing AcH at receptor site
competitively bind at nicotinic receptors
can be overcome by increasing AcH at receptor site
Examples of ganglionic blocking drugs
a) Buproprion
b) chantax
c) Oxytrol
d) Detrol
Buproprion
Chantax
T/F Ganlionic blocking drugs are nonspecific blockers of both parasympathetic and sympathetic ganglia
TRUE
Adrenergic agonists
a) sympathomimetic drugs
b) bind to alpha receptors
c) bind to beta receptors
a) sympathomimetic drugs
b) bind to alpha receptors
c) bind to beta receptors
The neurotransmitter found at adrenergic receptors
a) AcH
b) NE
c) Epi
NE
Epi
The second messenger associated with Beta adrenergic receptors
a) adenlyl-cyclase
b) phospholipase-C
c) guanlyl-cyclase
adenlyl-cyclase
The second messenger associated with Alpha 1 adrenergic receptors
a) adenlyl-cyclase
b) phospholipase-C
c) guanlyl-cyclase
phospholipase-C
Alpha 1 receptors
a) found on vascular smooth muscle
b) cause vasodilation
c) cause vasoconstriction
d) found post-synaptically
e) found pre-synaptically
found on vascular smooth muscle
cause vasoconstriction
found post-synaptically
Activation of Alpha 1 receptors
a) decreases production of cAMP
b) inhibits release of norepinephrine from neuron
c) increase production of DAG & IP3
d) causes an increase in intracellular calcium
e) found on post synaptic membrane of effector organ
a) decreases production of cAMP
c) increase production of DAG & IP3
d) causes an increase in intracellular calcium
e) found on post synaptic membrane of effector organ
END RESULT CONSTRICTION OF SMOOTH MUSCLE
Alpha receptors
a) more responsive to epinephrine
b) more responsive to isuprel
more responsive to epinephrine
>norepinephrine>isuprel
Dopamine receptors
a) found in peripheral mesenteric vascular beds
b) found in renal vascular beds
c) found in CNS
d) all of the above
a) found in peripheral mesenteric vascular beds
b) found in renal vascular beds
c) found in CNS
T/F Alpha 2 receptors use feedback inhibition and decrease adenyl-cyclase activity
TRUE
Activation of the dopaminergic receptor
a) causes vasodilation
b) causes vasoconstriction
c) increases GFR
d) decreases GFR
causes vasodilation
increases GFR
T/F Dopamine receptors are found in CNS effecting movement, affect, and nausea centers
TRUE
The precursor to endogenous catecholamines is ________________
Tyrosine
DOPA Dopamine Norepi
T/F Alpha 2 receptor drugs can cause sedating effects
True, such as clonidine, because of the release of opiods
Beta 1 receptors ( choose all that apply)
a) cause tachycardia
b) vasodilation
c) increased renin release
d) bronchodilation
e) increased myocardial contractility
cause tachycardia
increased renin release
increased myocardial contractility
Beta 2 receptors (choose all that apply)
a) cause vasodilation
b) bronchodilation
c) vasodilate vasculature in skeletal muscles
d) decrease K, Ca, Mg, increase glucose r/t glycogen metabolism
e) relaxed uterine smooth muscle
cause vasodilation
bronchodilation
vasodilate vasculature in skeletal muscles
relaxed uterine smooth muscle
decrease K, Ca, Mg, increase glucose r/t glycogen metabolism
T/F Beta arrestin turns g-protein coupled receptors off to decrease # of receptors
True, causes the receptor to migrate to pits in cell membrane to be recycled
D1 receptors (choose all that apply)
a) renal dilators
b) splanchnic dilators
c) modulate CNS
renal dilators
splanchnic dilators
D2 receptors
a) renal dilator
b) splanchnic dilator
c) modulate neurotransmitters in CNS
modulate neurotransmitters in CNS
Prolonged exposure to catechols
a) decreases number (downregulated)
b) increases number (upregulated)
decreases number (downregulated)
Lack of exposure to catechols
a) decreases number (downregulated)
b) increases number (upregulated)
increases number (upregulated)
The fundamental underlying mechanism for increasing contractility is
a) an increase in intracellular Calcium influx
b) an increase in Na moving out of cell through slow Na channels
an increase in intracellular Calcium influx
Beta 1 stimulation increases/decreases renin production
increases
Alpha 2 stimulation
increases/decreases renin production
decreases
Which receptor causes an increase in platelet aggregation
a) Alpha 1
b) Alpha 2
c) Beta 1
d) Beta 2
Alpha 2 Epinephrine, this is a good drug for pt coming of coronary bypass pump
T/F Catecholamines are polar and do not readily penetrate the CNS
TRUE
Which of the following drugs are considered catecholamines
a) epinephrine
b) isoproterenol
c) ephedrine
d) phenylephrine
epinephrine
isoproterenol
Direct acting adrenergic agonists
a) block uptake of norephinephrine
b) cause the release of norephinephrine
c) produce sympathetic effects
produce sympathetic effects
Indirect acting adrenergic agonists
a) block uptake of norephinephrine
b) cause the release of norephinephrine
c) produce sympathetic effects
cause the release of norephinephrine
T/F Catecholamines are polar and do not readily penetrate the CNS
TRUE
Which of the following drugs are considered catecholamines
a) epinephrine
b) isoproterenol
c) ephedrine
d) phenylephrine
epinephrine
isoproterenol
Direct acting adrenergic agonists
a) block uptake of norephinephrine
b) cause the release of norephinephrine
c) produce sympathetic effects
produce sympathetic effects
Indirect acting agonists
a) block uptake of norephinephrine
b) cause the release of norephinephrine
c) produce sympathetic effects
cause the release of norephinephrine
Examples of direct acting adrenergic agonists are
a) Ephedrine
b) Dobutamine
c) Norepinephrine
d) Cocaine
e) Phenylephrine
Dobutamine
Norepinephrine
Phenylephrine
Examples of indirect acting adrenergic agonists
a) Amphetamine
b) Dobutamine
c) Norepinephrine
d) Cocaine
e) Phenylephrine
Amphetamine
Cocaine
Which of the following is a mixed direct/indirect adrenergic agonist
a) Ephedrine
b) Dobutamine
c) Norepinephrine
d) Cocaine
e) Phenylephrine
Ephedrine
What are the two types of cholinergic receptors?
nicotinic, muscarinic
Muscarinic receptors are found
a) pre-ganglionically in the PSNS neurons, but post-ganglionically in the SNS neurons
b) post-ganglionically in the PSNS neurons, and not found in the SNS neurons
c) post synaptically in the somatic neurons, and not found in the PSNS neurons
post-ganglionically in the PSNS neurons, and not found in the SNS neurons
You have just given a cholinergic, muscarinic agonist
a) the sphincter of the iris will contract and cause miosis
b) the sphincter of the iris will contract and cause mydriasis
c) the sphincter of the iris will relax and cause miosis
d) the sphincter of the iris will relax and cause mydriasis
the sphincter of the iris will contract and cause miosis
T/F Cholinergic agonists will cause dilation of both arterial & venous dilation in low doses
True
M1 receptors are found
a) in the heart, smooth muscle
b) in the lungs (bronchospasm)
c) in the bladder, glands
d) in the nerves, parietal cells
in the nerves, parietal cells
M3 receptors are found
a) in the heart, smooth muscle
b) in the lungs (bronchospasm)
c) in the bladder, glands
d) in the nerves, parietal cells
in the bladder, glands
When an M1 receptor is stimulated what 2nd messenger(s) are activated and is there an increase or decrease in the 2nd
messenger
a) ↑ IP3, DAG
b) ↓ IP3, DAG
c) ↓ cAMP
d) ↑ cAMP
↑ IP3, DAG
When an M2 receptor is stimulated what 2nd messenger(s) are activated and is there an increase or decrease in the 2nd
messenger
a) ↑ IP3, DAG
b) ↓ IP3, DAG
c) ↓ cAMP
d) ↑ cAMP
↓ cAMP
. When an M3 receptor is stimulated what 2nd messenger(s) are activated and is there an increase or decrease in the 2nd
messenger
a) ↑ IP3, DAG
b) ↓ IP3, DAG
c) ↓ cAMP
d) ↑ cAMP
↑ IP3, DAG
. The effect that cholinergic agonists has on the bladder & sphincter
a) contraction of detrusor muscle
b) relaxation of detrusor muscle
c) contraction of sphincter
d) relaxation of sphincter
contraction of detrusor muscle

relaxation of sphincter
. T/F GI motility is increased with cholinergic agonists
True
Nicotinic receptors are ___________receptors
Muscarinic receptors are ___________ receptors
ion channel

g-protein
. Bethanechol, Carbachol, and Pilocarpine
a) direct acting cholinergic agonists
b) indirect acting cholinergic agonists
c) act on muscarinic receptors
d) act on nicotinic receptors
direct acting cholinergic agonists

act on muscarinic receptors
Direct acting cholinergic drugs act by
a) increasing AcH by inhibiting hydrolysis of AcH
b) decreasing AcH by increasing hydrolysis of AcH
c) mimic effects of AcH by binding directly to the cholinergic receptor
mimic effects of AcH by binding directly to the cholinergic receptor
. Bethanechol (choose all that apply)
a) structurally related to AcH
b) hydrolyzed by acetylcholinesterase
c) lacks nicotinic actions
d) acts on the smooth musculature of bladder & gi tract
structurally related to AcH

lacks nicotinic actions

acts on the smooth musculature of bladder & gi tract
. Indirect acting cholinergic drugs act by
a) increasing AcH by inhibiting hydrolysis of AcH
b) decreasing AcH by increasing hydrolysis of AcH
c) mimic effects of AcH by binding directly to the cholinergic receptor
increasing AcH by inhibiting hydrolysis of AcH
. Physostigmine (choose all that apply)
a) direct acting cholinergic agonist
b) indirect acting cholinergic agonist
c) effects both muscarinic & nicotinic receptors
d) enters the CNS
indirect acting cholinergic agonist

effects both muscarinic & nicotinic receptors

enters the CNS
. Physostigmine used to treat (choose all that apply)
a) central cholinergic syndrome
b) central anticholinergic syndrome
c) atonic bladder or bowel
d) glaucoma
central anticholinergic syndrome

atonic bladder or bowel

glaucoma
T/F Physostigmine reversibly binds to acetylcholinesterase and inhibits its action
True
Which of the following drugs would be used to diagnose Myasthenia Gravis, and why?
a) Pyridostigmine
b) Neostigmine
c) Edrophonium
Edrophonium, because it is short acting vs pyridostigmine and neostigmine
Alzheimer’s Disease increased/decreased cholinergic receptors in CNS
decreased
Which of the following drugs would be used to treat Alzheimer’s Disease (choose all that apply)
a) Donezepril
b) Captopril
c) Rivastigmine
d) Glantamine
Donezepril
Rivastigmine
Glantamine
How are irreversible cholinesterase inhibitors treated?
with atropine
Match the dose of Atropine with the expected effect

0.03mg ..............................↓gi/bladder
0.8 -1mg ............................ bradycardia
2-3mg .................................tachycardia, mydrasis, bronchodilation
4-5mg .................................dry mouth, ↓ bronchial secretions
0.03 bradycardia

0.8-1mg tachycardia, mydriasis, bronchodilation

2-3mg dry mouth, ↓bronchial secretions

4-5mg ↓ gi/bladder
. Adverse effects of cholinergic antagonists include (choose all that apply)
a) CNS toxicity
b) constipation
c) urinary retention
d) bronchospasm
CNS toxicity
constipation
urinary retention
Your pt is on an Epi drip at 1mcg/kg/min, you give 1mg of Propanolol and continue the drip you would expect
a) HR to decrease, contractility to decrease, BP to decrease
b) HR to increase, contractility to decrease, BP to increase
c) HR to decrease, contractility to decrease, BP to increase
HR to decrease, contractility to decrease, BP to increase
Prior to giving Isuprel your pt was α-blocked what would the BP do? increase/decrease/stay the same
stay the same (because Isuprel is strictly a beta drug)
Prior to giving some Epi your pt was α-blocked what would the BP do? increase/decrease/stay the same
decrease
Prior to starting your pt on a levo drip he was α-blocked what would the BP do? increase/decrease/stay the same
decrease (levophed is both alpha and beta)
Clonidine (choose all that apply)
a) α1 agonist
b) α2 agonist
c) exerts its effect both peripherally & centrally
d) inhibits sympathetic tone
e) inhibits NE release
α2 agonist
exerts its effect both peripherally & centrally
inhibits sympathetic tone
inhibits NE release
Drugs used to treat bronchospasms
a) β2-blockers
b) β2 agonists
β2 agonists
Albuterol, Metaproterenol short acting/ medium acting/ long acting
medium acting
. What is the problem with using short acting/ medium acting adrenergics for bronchospasm?
(think receptors) using short acting causes up & down regulation of
receptors, and so are not effective in long term treatment
Match the receptor type with its location in the body (may be more than one answer for some)
α1 ........................lungs
β2........................ Smooth vascular
α2 ........................ heart
β3.......................CNS
D1 ....................... Renal
D2...................... adipose tissue
β1...................... Nerve endings
...........................Splanchnic
...........................uterine
Smooth vascular α1 β2
Lungs β2
Heart β1
CNS α2
Renal D1
vascular skeletal β2
Nerve endings D2
Splanchnic D1
Uterine β2
Adipose tissue β3
The 2nd messenger for α1 receptor
a) adenyl cyclase
b) phospholipase C
phospholipase C
α1 receptors
a) vasoconstriction
b) vasodilation
c) ↑ peripheral resistance
d) mydriasis
e) miosis
vasoconstriction
↑ peripheral resistance
mydriasis
α2 receptors
a) inhibit NE release
b) inhibit insulin release
c) tachycardia
d) sedation
e) ↓ renin release
inhibit NE release
inhibit insulin release
sedation
↓ renin release
β1 receptors
a) tachycardia
b) vasodilation
c) ↑ renin release
d) metabolism changes ( ↑ glucose, ↓ K, Ca, Mg)
tachycardia
↑ renin release
β2 receptors
a) vasodilation
b) bronchodilation
c) increased muscle/liver glycogenolysis
d) relax uterine muscle
vasodilation
bronchodilation
increased muscle/liver glycogenolysis
relax uterine muscle
What cholinergic antagonist is also a ganglionic blocker & is used to treat HTN
Trimethaphan
Aldomet (Methyldopa)
a) a dopaminergic drug
b) α2 agonist
c) converted to methylnorepinephrine & diminishes adrenergic outflow in the CNS
d) ↓ peripheral resistance & ↓ BP
α2 agonist
converted to methylnorepinephrine & diminishes adrenergic outflow in the CNS
↓ peripheral resistance & ↓ BP
. Aldomet
a) ↓ CO
b) does not ↓ CO
c) good drug for renal pts
d) side effects of sedation, drowsiness
does not ↓ CO
good drug for renal pts
side effects of sedation, drowsiness
. Hydralazine
a) direct vasodilation
b) indirect vasodilation
c) causes reflex tachycardia
d) ↑ renin release → Na & H2O retention
e) used in combination with β-blockers (propanolol)
direct vasodilation
causes reflex tachycardia
↑ renin release → Na & H2O retention
used in combination with β-blockers (propanolol)
T/F Hydralazine increases myocardial contractility, HR, and MVO2
True
α-blockers
a) arterial/venous dilation
b) prevent HTN when exposed to catecholamines
c) ↑ HR, renin, ADH
d) reverse vasoconstriction caused by Epinephrine
arterial/venous dilation
prevent HTN when exposed to catecholamines
↑ HR, renin, ADH
reverse vasoconstriction caused by Epinephrine
T/F Angiotensin Blockers will allow renin release, but not Na & H2O retention
True
Which Ca Channel blockers are more active in the heart vs vascular smooth muscle
a) Nifedipine
b) Diltiazem
c) Nicardipine
d) Verapamil
Diltiazem

Verapamil
Which Ca Channel blockers are more active in the vascular smooth muscle vs heart
a) Nifedipine
b) Diltiazem
c) Nicardipine
d) Verapamil
Nifedipine
Nicardipine
Your pt has SVT which Ca Channel blockers would you use
a) Nifedipine
b) Diltiazem
c) Nicardipine
d) Verapamil
Diltiazem

Verapamil
ACE Inhibitors
a) ↓ SNS output
b) ↓ aldosterone
c) ↑ aldosterone
d) ↑ bradykinin
↓ SNS output
↓ aldosterone
↑ bradykinin
Which Ca Channel blockers have some effect on coronary vasodilation
a) Diltiazem
b) Nicardipine
c) Nifedipine
d) Verapamil
Diltiazem
Nifedipine
Verapamil
T/F Dihydropyridines cause reflex sympathetic activation & edema
True
Nicardipine
a) has a ceiling effect
b) can be rapidly titrated in HTN emergency
c) can not be rapidly titrated d/t long ½ life
d) good drug for Neuro-anesthesia (only minimal ↑ CBF)
e) causes coronary vasodilation
has a ceiling effect
can not be rapidly titrated d/t long ½ life
good drug for Neuro-anesthesia (only minimal ↑ CBF)
causes coronary vasodilation
β-blockers ↓ BP by
a) ↓ stress related to HTN
b) ↓ renin production
c) ↑ aldosterone
d) block β adrenoreceptors on heart
↓ stress related to HTN
↓ renin production
block β adrenoreceptors on heart
The administration of Nitrates
a) ↑ cGMP
b) ↓ cGMP
c) ↑ Nitric Oxide
d) ↑ dephosphorylation of light chain myosin
e) ↓ dephosphorylation of light chain myosin
↑ cGMP
↑ Nitric Oxide
↑ dephosphorylation of light chain myosin
Molecule is made up of Fe, Cyanide (CN), Nitric Oxide
a) Nitroglycerin
b) Nitroprusside
Nitroprusside
You are administering a nitrate to your patient and notice a ↓ LOC and upon drawing some labs see that he is in metabolic acidosis. This drug is rapidly
metabolized by RBC’s the drug is
a) Nitroprusside
b) Nitroglycerin
Nitroprusside
How is cyanide toxicity from Nitroprusside treated
a) Vit B 12
b) Thiosulfate
Vit B 12
Systemic effects of Nitroprusside
a) ↑ cerebral blood flow
b) inhibits platelet aggregation
c) ↑ platelet aggregation
d) blocks hypoxic pulmonary vasoconstriction reflex
↑ cerebral blood flow
inhibits platelet aggregation
blocks hypoxic pulmonary vasoconstriction reflex
Vasodilators work by
a) ↑ LV afterload
b) ↓ LV afterload
c) venous decompression
d) venous pooling
e) improving RV function thru pulmonary vasodilation
↓ LV afterload
venous decompression
improving RV function thru pulmonary vasodilation
How does Vit B12 work when used for cyanide poisoning?
displacing the drug from the receptor
Nitroprusside or Nitroglycerin which one dilates coronary’s and can be used for vasospasm in the uterus?
Nitroglycerin
T/F Nitroglycerin exerts it’s effect on smooth muscle relaxation by release of endothelial Nitric Oxide
True
Nitroglycerin
a) ↓ cGMP
b) ↓ preload
c) ↑ preload
d) dilates lg coronary arteries
e) ↓ LVEDP
↓ preload
dilates lg coronary arteries
↓ LVEDP

cGMP would increase because cGMP vasodilates
Your pt has Torsades de Pointe what would you treat it with?
Mg or Phenytoin or propanolol or lidocaine
Trimethaphan
a) blocks SNS ganglia only
b) blocks SNS & PSNS ganglia
c) ↓ BP by ↓ preload (CO & SVR)
d) reflex tachy
e) binds to nicotinic receptors
f) can be used to ↓ intraoperative bleeding
blocks SNS & PSNS ganglia

↓ BP by ↓ preload (CO & SVR)

binds to nicotinic receptors

can be used to ↓ intraoperative bleeding
What vasodilator causes lupus like syndrome (Steven-Johnson’s) and may be a problem in slow acetylators
a) Nitroprusside
b) Hydralazine
c) Fenoldopam
d) Nicardipine
Hydralazine
T/F Enalaprit (Vasotec) causes ↑ renin release and ↑ bradykinin
True
. Fenoldopam
a) α agonist
b) D1 agonist
c) renal artery dilation
d) natiuretic
D1 agonist
renal artery dilation
natiuretic
Brain Natiuretic Peptide, pulmonary vasodilator, used to treat CHF, Pulmonary Edema
a) Diazoxide
b) Nesiritide
c) Phentolamine
d) Enalaprit
Nesiritide
Side effects of vasodilators include
a) reflex tachy
b) Na & H2O retention
c) ↓ aldosterone
d) HOTN
reflex tachy
Na & H2O retention
HOTN
Which drug could be used to treat dig toxicity
a) Amiodorone
b) Phenytoin
c) Quinidine
d) Flecinide
Phenytoin
Nitric Oxide causes vasodilation in
a) all alveoli
b) only ventilated alveoli
only ventilated alveoli
Nitric Oxide
a) ↓ PA pressures
b) endothelial-derived relaxing factor
c) only approved in PPH (neonates)
d) cause pulmonary edema
↓ PA pressures

endothelial-derived relaxing factor

only approved in PPH (neonates)

cause pulmonary edema
50% of people don’t respond to Nitric Oxide therapy but may if what drugs are added to the therapy?
Nitroprusside or Nitroglycerin
T/F Nitric Oxide inhalation therapy is beneficial in ARDS, RV failure after cardiac surgery & sickle cell crisis
True
Nitric Oxide is delivered in parts/million, if delivered at a rate 20 parts/million what could result?
Methemoglobinemia d/t free radicals
T/F Rebound Pulmonary HTN can occur after withdrawing Nitric Oxide therapy
True, need to withdraw slowly
Which of the following drugs produces CYP itself
a) Phenytoin
b) Amiodorone
c) Procainamide
d) Quinidine
Phenytoin
Which anti-dysrrhythmic drug could be a problem in pts who are slow acetylators
a) Phenytoin
b) Amiodorone
c) Procainamide
d) Quinidine
Procainamide
Which of the following anti-dysrrhythmic drugs are considered “membrane stabilizers”
a) Procainamide
b) Propanolol
c) Propafenone
d) Lidocaine
Procainamide
Propanolol
Propafenone
Lidocaine
Which of the following drugs is both a class II & class III anti-dysrrhythmic drug
a) Amiodorone
b) Sotolol
d) Mexilitine
e) Adenosine
Sotolol
Class IA anti-dysrrhythmics
a) prolong the action potential
b) have no effect on the action potential
c) slows phase 0 depolarization
d) suppresses phase 4 depolarization
prolong the action potential

slows phase 0 depolarization
Class IB anti-dysrrhythmics
a) decrease the duration of the action potential
b) have no effect on the action potential
c) shorten phase 3 repolarization
d) prolong phase 3 repolarization
decrease the duration of the action potential

shorten phase 3 repolarization
Class IC anti-dysrrhythmics
a) decrease the duration of the action potential
b) have no effect on the action potential
c) slow phase 0 depolarization
d) supress phase 4 depolarization
have no effect on the action potential
slow phase 0 depolarization
Class I drugs
a) Na channel blockers
b) Ca channel blockers
c) β-blockers
d) K channel blockers
Na channel blockers
Class II drugs
a) Na channel blockers
b) Ca channel blockers
c) β-blockers
d) K channel blockers
β-blockers
Class III drugs
a) Na channel blockers
b) Ca channel blockers
c) β-blockers
d) K channel blockers
K channel blockers
Class IV drugs
a) Na channel blockers
b) Ca channel blockers
c) β-blockers
d) K channel blockers
Ca channel blockers
Procainamide, Quinidine, Disopyramide all
a) Class IA drugs
b) Class II drugs
c) Class IB drugs
d) Class IV drugs
Class IA drugs
Lidocaine, Mexiletine
a) Class IA drugs
b) Class II drugs
c) Class IB drugs
d) Class IV drugs
Class IB drugs
Flecainide
a) Class IC drugs
b) Class III drugs
c) Class IB drugs
d) Class IV drugs
Class IC drugs
Esmolol, Propanolol, Sotolol
a) Class IA drugs
b) Class II drugs
c) Class IB drugs
d) Class IV drugs
Class II drugs
Amiodorone, Sotolol
a) Class III drugs
b) Class II drugs
c) Class IB drugs
d) Class IV drugs
Class III drugs
Diltiazem, Verapamil
a) Class IA drugs
b) Class II drugs
c) Class IB drugs
d) Class IV drugs
Class IV drugs
Which drug crosses all four anti-arrhythmic classes
a) Procainamide
b) Amiodorone
c) Disopyramide
d) Sotolol
Amiodorone
Propafenone, Procainamide, Amiodorone which drug has the following adverse effects
- Hyper &/or Hypo thyroidism
- dig toxicity
- blue skin coloring
- inhibits CYP
- pulmonary alveolitis
Amiodorone
Increased levels of Flecainide can be seen when given in combination with (choose all that apply)
a) digoxin
b) amiodorone
c) propanolol
d) Phenytoin
digoxin
amiodorone
propanolol
Which of the following prostanoids are vasoconstrictors
a) TXA2
b) PGE1
c) PGE2
d) PGI2
e) PGF2α
TXA2

PGE2

PGF2α
Which of the following prostanoids are vasodilators
a) TXA2
b) PGE1
c) PGE2
d) PGI2
e) PGF2α
PGE1

PGI2
Hemabate
a) PGF2α
b) PGE1
c) used for post partum hemorrhage
d) should not be used in a pt with asthma
PGF2α

used for post partum hemorrhage

should not be used in a pt with asthma
Alprostadil
a) will close the PDA
b) will keep the PDA open
c) PGE1
d) PGE2
will keep the PDA open

PGE1
Epoprostanol (Flolan)
a) treat Pulm HTN
b) PGI2
c) PGF2α
d) requires continuous infusion d/t short ½ life
treat Pulm HTN
PGI2
requires continuous infusion d/t short ½ life
Iloprost
a) PGI2
b) PGI1
c) ↓ plt aggregation
d) ↑ plt aggregation
PGI2

↓ plt aggregation
Thromboxane
a) PGI2
b) TXA2
c) ↑ plt aggregation
d) ↓ plt aggregation
TXA2

↑ plt aggregation
Misoprostol (Cytotec)
a) PGE1
b) PGI2
c) ↑ gi motility
d) proton pump inhibitor
PGE1

↑ gi motility

proton pump inhibitor
Digoxin
a) increases Na+/K+ exchange
b) decreases Na+/K+ exchange
c) increases intracellular Ca++
d) decreases intracellular Ca++
decreases Na+/K+ exchange

increases intracellular Ca++
Digoixin
a) ↑ protein binding
b) narrow therapeutic window
c) ↑ duration of action potential
d) ↓ duration of action potential
e) ↑ PSNS activity on SA node
f) increased conduction on rest of heart
↑ protein binding

narrow therapeutic window

↓ duration of action potential

↑ PSNS activity on SA node (which slows heart rate)

increased conduction on rest of heart
Hypokalemia/Hyperkalemia causes dig toxicity
Hypokalemia
Hypercalcemia/Hypocalcemia causes dig toxicity
Hypercalcemia
Spironolactone
a) aldosterone antagonist
b) K+ sparing
c) loop diuretic
d) aldosterone agonist
aldosterone antagonist

K+ sparing
Angiotensin Inhibitors
a) Captopril
b) Losartan
c) ↓ aldosterone
d) ↓ angiotensin II
e) ↑ bradykinin
Losartan
↓ aldosterone
↓ angiotensin II
↑ bradykinin
Bipyridines
a) Milrinone
b) Eplerone
c) phosphodiesterase inhibitors
d) ↑cGMP
e) ↑ cAMP
Milrinone
phosphodiesterase inhibitors
↑cGMP (vasodilation)
↑ cAMP (contraction)