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Which of the following sympathomimetics is preferable for the treatment of chronic orthostatic hypotension?
Epinephrine Norepinephrine Ephedrine Salmeterol
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Indicate the sympathomimetic drug, which is used in a hypotensive emergency:
Xylometazoline Ephedrine Terbutaline Phenylephrine
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Indicate the sympathomimetic agent, which is combined with a local anesthetic to prolong the duration of infiltration nerve block:
Epinephrine Xylometazoline Isoproterenol Dobutamine
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Which of the following sympathomimetics is related to short-acting topical decongestant agents?
Xylometazoline Terbutaline Phenylephrine Norepinephrine
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Indicate the long-acting topical decongestant agents:
Epinephrine Norepinephrine Phenylephrine Xylometazoline
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Which of the following topical decongestant agents is an alfa2-selective agonist?
Phenylephrine Xylometazoline Ephedrine Epinephrine
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Indicate the sympathomimetic, which may be useful in the emergency management of cardiac arrest:
Methoxamine Phenylephrine Epinephrine Xylometazoline
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Which of the following sympathomimetics is used in the therapy of bronchial asthma?
Formoterol Norepinephrine Methoxamine Dobutamine
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Indicate the agent of choice in the emergency therapy of anaphylactic shock:
Methoxamine Terbutaline Norepinephrine Epinephrine
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Which of the following sympathomimetics is an effective mydriatic?
Salmeterol Phenylephrine Dobutamine Norepinephrine
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The adverse effects of sympathomimetics include all of the following EXCEPT:
Drug-induced parkinsonism Cerebral hemorrhage or pulmonary edema Myocardial infarction Ventricular arrhythmias
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Indicate the irreversible alfa receptor antagonist:
Tolazoline Labetalol Prazosin Phenoxybenzamine
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Which of the following drugs is an nonselective beta receptor antagonist?
Metoprolol Atenolol Propranolol Acebutolol
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Indicate the beta1-selective antagonist:
Propranolol Metoprolol Carvedilol Sotalol
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Which of the following agents is a beta2–selective antagonist?
Tolazolin Pindolol Ergotamin Butoxamine
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Indicate the beta adrenoreceptor antagonist, which has partial beta–agonist activity:
Propranolol Metoprolol Pindolol Betaxolol
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Which of the following drugs is a reversible nonselective alfa, beta antagonist?
Labetalol Phentolamine Metoprolol Propranolol
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Indicate the indirect-acting adrenoreceptor blocking drug:
Tolazoline Reserpine Carvedilol Prazosin
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The principal mechanism of action of adrenoreceptor antagonists is:
Reversible or irreversible interaction with adrenoreceptors Depletion of the storage of catecholamines Blockade of the amine reuptake pumps Nonselective MAO inhibition
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Characteristics of alfa-receptor antagonists include all of the following EXCEPT:
They cause a fall in peripheral resistance and blood pressure They cause epinephrine reversal (convert a pressor response to a depressor response) Bronchospasm They may cause postural hypotension and reflex tachycardia
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