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PDA I Exam 4 Fall 2008
Noradrenergic Transmission II
91
Health Care
Professional
12/03/2008

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Term
Increasing the bulkiness of the substituents on the N-atom on catecholamines:
Definition
Makes the drug a better B-agonist
Term
If a drug is not susceptible to uptake 1 or MAO, it will likely have:
Definition
A longer duration of action
Term
Removal of one or both hydroxyl groups on catecholamines (Epi, NE, etc):
Definition
Abolishes affinity for receptors
Term
Hydroxyl groups on catecholamines are:
Definition
Substrates for uptake 1
Term
Modification of the benzene ring in catecholamines:
Definition
Makes better B-antagonists
Term
Sympathomimetic drugs:
Definition
Mimic the actions of Epi and NE
Term
Using this type of drug can cause adverse events in patients with HTN and asthma.
Definition
Non-selective beta blockers
Term
This type of sympathomimetic drug mechanism of action mimics noradrenergic effects by binding to adrenoreceptors.
Definition
Direct
Term
This type of sympathomimetic drug mechanism of action may either facilitate neurotransmitter release OR block neuronal reuptake.
Definition
Indirect
Term
Indirect enzyme inhibitors, like MAOIs and tyramine are factors that:
Definition
Enhance adrenergic effects
Term
Phenylephrine is a(n):
Definition
alpha-1 selective agonist
Term
Methoxamine is a(n):
Definition
alpha-1 selective agonist
Term
Clonidine is a(n):
Definition
alpha-2 selective agonist
Term
Isoproterenol is a:
Definition
Non-selective beta agonist
Term
Dobutamine is a:
Definition
Beta-1 selective agonist
Term
Terbutaline is a:
Definition
Beta-2 selective agonist
Term
Phenylephrine is used clinically for:
Definition
Nasal congestion, pupil dilation, arrhythmia
Term
Methoxamine is used clinically for:
Definition
Treating hypertension during surgery
Term
Clonidine is used clinically to treat:
Definition
HTN
Term
Isoproterenol is used clnically as:
Definition
A bronchodilator
Term
Dobutamine is used clinically to treat:
Definition
Congestive heart failure
Term
Terbutaline is used as:
Definition
A bronchodilator
Term
Adrenergic receptor agonists cause these actions on the cardiovascular system:
Definition
Increased heart rate (Chronotropic effects), increase contractility (Inotropic effects), and compensatory reflexes
Term
An example of compensatory reflexes would be:
Definition
Drugs that cause vasoconstriction cause reflex slowing of the heart
Term
Alpha-1 agonists will cause this in vascular smooth muscle:
Definition
Vasocontraction
Term
Alpha-1 agonists increase or decrease arterial resistance?
Definition
Increase
Term
Alpha-1 agonists cause increase or decrease in BP?
Definition
Increase
Term
Beta-2 agonists cause this in vascular smooth muscle:
Definition
Vasorelaxation
Term
Beta-2 agonists cause increase or decrease in arterial resistance?
Definition
Decrease
Term
Beta-2 agonists cause increased or decreased BP?
Definition
Decreased
Term
Control of BP is mediated by:
Definition
Baroreceptors in the aortic arch and carotid sinus
Term
Epinephrine has this effect on the heart:
Definition
Increases contractility and heart rate
Term
Beta-1 receptors on myocardial cells cause:
Definition
Increase in contractility
Term
Beta-1 receptors in the pacemaker cells of the SA node cause:
Definition
Increase heart rate
Term
Adrenergic activation of beta-2 receptors causes:
Definition
Vasodilation
Term
Adrenergic activation of alpha-1 receptors causes:
Definition
Vasoconstriction
Term
Bronchodilation is caused by activation of these receptors:
Definition
Beta-2 receptors
Term
Decreased gastrointestinal contractions are caused by activation of this receptor:
Definition
Beta-2
Term
Relaxation of the detrusor muscle of the urinary bladder is caused by activation of this receptor:
Definition
Beta-2
Term
Contraction of the sphincter muscle of the urinary bladder is caused by the activation of this type of receptor:
Definition
Alpha-1
Term
Contraction of the radial dilator muscle of the iris is caused by activation of this type of receptor:
Definition
Alpha-1
Term
Inhibition of insulin secretion from insulin-secreting beta-cells is caused by:
Definition
Activation of alpha-2 receptors
Term
Glucagon secretion from glucagon-secreting alpha-cells is caused by:
Definition
Activation of beta-2 receptors
Term
Gluconeogenesis and glycogenolysis in the liver are caused by:
Definition
Activation of beta-2 receptors
Term
Lipolysis in adipocytes is caused by:
Definition
Activation of beta-3 receptors
Term
This causes increased circulating glucose, lactic acid, free fatty acids:
Definition
Epinephrine
Term
In summary, sympathetic effects on metabolism causes:
Definition
Increase blood glucose and lipid levels, decrease insulin levels, increase glucagon levels
Term
This drug can be used to treat severe allergic reactions, including anaphylaxis:
Definition
Epinephrine
Term
This drug can be used to treat cardiac arrest and bradycardia:
Definition
Epinephrine
Term
This drug can be used to prevent surgical bleeding along a surgical incision:
Definition
Epinephrine
Term
This drug can be used to prevent surgical bleeding along a surgical incision:
Definition
Epinephrine
Term
This drug is used to treat acute hypotension and cardiogenic shock:
Definition
Norepinephrine
Term
This drug is clinically used to treat septic shock:
Definition
Norepinephrine
Term
This drug is clinically used to treat upper GI bleeding:
Definition
Norepinephrine
Term
Phenylephrine is_______ for ______ receptors.
Definition
Selective; alpha-1
Term
Phenylephrine is an alpha-1 ________.
Definition
Agonist
Term
Phenylephrine is clinically used to treat:
Definition
Nasal and sinus congestion
Term
Phenylephrine has this effect on the eyes:
Definition
Mydriasis
Term
Phenylephrine is used to treat these cardiovascular events:
Definition
Hypotension or shock
Term
Phenylephrine causes this in vascular smooth muscle tissue:
Definition
Vasoconstriction
Term
Clonidine is ______ for _______ receptors.
Definition
Selective; alpha-2
Term
Clonidine is a selective alpha-2 _____.
Definition
Agonist
Term
Clonidine causes:
Definition
Hypotension, bradycardia, and sedation
Term
Clonidine is clinically used to treat this cardiovascular disease:
Definition
HTN
Term
Dobutamine is a ______ _______.
Definition
Selective; beta-1 agonist
Term
Dobutamine causes these effects on the heart:
Definition
Increase heart rate, increase contractility
Term
Dobutamine is clinically used to treat:
Definition
Congestive heart failure, cardiogenic shock, septic shock
Term
Albuterol and terbutaline affect this receptor:
Definition
Beta-1 receptors
Term
Albuterol is a beta-2:
Definition
Agonist
Term
Terbutaline is a beta-2:
Definition
Agonist
Term
Albuterol and terbutaline are clinically used to treat:
Definition
Asthma
Term
Albuterol can be used to treat this electrolyte imbalance:
Definition
Hyperkalemia
Term
Terbutaline is clinically used during pregnancy to:
Definition
Inhibit uterine contractions in premature labor
Term
Eating wine and cheese while taking an MAOI causes an adverse event due to the interaction of the MAOI and this molecule:
Definition
Tyramine
Term
Tyramine-MAOI adverse events cause:
Definition
Hypertensive crisis
Term
Why does ephedrine cause side effects?
Definition
It is lipid soluble --- crosses the BBB
Term
Ephedrine stimulates the release of:
Definition
Norepinephrine
Term
Why does ephedrine have a long duration of action?
Definition
It is not a substrate for COMT or MAO
Term
Ephedrine is clinically used to treat:
Definition
Asthma, orthostatic hypotension, nasal congestion,and depression
Term
Pseudoephedrine is clinically used to treat:
Definition
Nasal congestion
Term
Pseudoephedrine indirectly stimulates the release of:
Definition
Norepinephrine
Term
Pseudoephedrine acts directly on ____ receptors, and to a lesser extent ____ receptors.
Definition
Alpha; beta
Term
Phenylpropanolamine is clinically used to treat:
Definition
Nasal congestion
Term
Phenylpropanolamine indirectly stimulates the release of:
Definition
Norepinephrine
Term
Phenylpropanolamine acts directly on ____ receptors, and to a lesser extent on _____ receptors.
Definition
Alpha; beta
Term
What is the mechanism of action of amphetamine?
Definition
Stimulates the release of NE and blocks uptake 1.
Term
Amphetamine causes a euphoric experience because:
Definition
It crosses the BBB and stimulates the release of dopamine
Term
Amphetamine is clinically used to treat:
Definition
ADHD, narcolepsy, and obesity
Term
Cocaine is clinically used as:
Definition
A local anesthetic; opthalmic anasthetic
Term
Cocaine causes:
Definition
Tachycardia; HTN
Term
Cocaine stimulates the release and _____ of norepinephrine.
Definition
Uptake
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