|
Related Questions |
View Answer |
|
Epinephrine produces all of the following effects EXCEPT:
Positive inotropic and chronotropic actions on the heart (beta1 receptor) Increase peripheral resistance (alfa receptor) Predominance of alfa effects at low concentration Skeletal muscle blood vessel dilatation (beta2 receptor)
|
View Answer
|
|
Epinephrine produces all of the following effects EXCEPT:
Decrease in oxygen consumption Bronchodilation Hyperglycemia Mydriasis
|
View Answer
|
|
Epinephrine is used in the treatment of all of the following disorders EXCEPT:
Bronchospasm Anaphylactic shock Cardiac arrhythmias Open-angle glaucoma
|
View Answer
|
|
Compared with epinephrine, norepinephrine produces all of the following effects EXCEPT:
Similar effects on beta1 receptors in the heart and similar potency at an alfa receptor Decrease the mean pressure below normal before returning to the control value Significant tissue necrosis if injected subcutaneously Increase both diastolic and systolic blood pressure
|
View Answer
|
|
Norepinephrine produces:
Vasoconstriction Vasodilatation Bronchodilation Decresed potassium concentration in the plasma
|
View Answer
|
|
Which of the following direct-acting drugs is a relatively pure alfa agonist, an effective mydriatic and decongestant and can be used to raise blood pressure?
Epinephrine Norepinephrine Phenylephrine Ephedrine
|
View Answer
|
|
Characteristics of methoxamine include all of the following EXCEPT:
It is a direct-acting alfa1-receptor agonist It increases heart rate, contractility and cardiac output It causes reflex bradycardia It increases total peripheral resistance
|
View Answer
|
|
Which of the following agents is an alfa2-selective agonist with ability to promote constriction of the nasal mucosa?
Xylometazoline Phenylephrine Methoxamine Epinephrine
|
View Answer
|
|
Indicate the sympathomimetic, which may cause hypotension, presumably because of a clonidine-like effect:
Methoxamine Phenylephrine Xylometazoline Isoproterenol
|
View Answer
|
|
Isoproterenol produces all of the following effects EXCEPT:
Increase in cardiac output Fall in diastolic and mean arterial pressure Bronchoconstriction Tachycardia
|
View Answer
|
|
Characteristics of dobutamine include all of the following EXCEPT:
It is a relatively beta1-selective synthetic catecholamine It is used to treat bronchospasm It increases atrioventricular conduction It causes minimal changes in heart rate and systolic pressure
|
View Answer
|
|
Characteristics of salmeterol include all of the following EXCEPT:
It is a potent selective beta2 agonist It causes uterine relaxation It stimulates heart rate, contractility and cardiac output It is used in the therapy of asthma
|
View Answer
|
|
Characteristics of ephedrine include all of the following EXCEPT:
It acts primarily through the release of stored cathecholamines It is a mild CNS stimulant It causes tachyphylaxis with repeated administration It decreases arterial pressure
|
View Answer
|
|
Ephedrine causes:
Miosis Bronchodilation Hypotension Bradycardia
|
View Answer
|
|
Compared with epinephrine, ephedrine produces all of the following features EXCEPT:
It is a direct-acting sympathomimetic It has oral activity It is resistant to MAO and has much longer duration of action Its effects are similar, but it is less potent
|
View Answer
|
|
Which of the following sympathomimetics is preferable for the treatment of chronic orthostatic hypotension?
Epinephrine Norepinephrine Ephedrine Salmeterol
|
View Answer
|
|
Indicate the sympathomimetic drug, which is used in a hypotensive emergency:
Xylometazoline Ephedrine Terbutaline Phenylephrine
|
View Answer
|
|
Indicate the sympathomimetic agent, which is combined with a local anesthetic to prolong the duration of infiltration nerve block:
Epinephrine Xylometazoline Isoproterenol Dobutamine
|
View Answer
|
|
Which of the following sympathomimetics is related to short-acting topical decongestant agents?
Xylometazoline Terbutaline Phenylephrine Norepinephrine
|
View Answer
|
|
Indicate the long-acting topical decongestant agents:
Epinephrine Norepinephrine Phenylephrine Xylometazoline
|
View Answer
|