Similar questions:
Phentolamine mesylate (OraVerse) is a drug used to reverse soft tissue anesthesia and the associated functional deficits resulting from a local dental anesthetic containing a vasoconstrictor. Which statement best describes its mechansim of action?
Causes vasodilation and increased blood flow in iniection areaAnesthetics set 2
Phentolamine rnesylate (OraVerse) is an
alpha1-adrenergic receptor blocker.Anesthetics set 2
After pretreatment with phentolamine, intravenous administration of epinephrine should result in
a. Relaxation of bronchial smooth muscle
b. Positive chronotropic and inotropic effects
c. Splanchnic vasoconstriction
d. Dilation of skeletal muscle vascular beds
e. Secretion of a mucoid viscous saliva
a, b and d
Adrenergics
Administration of which of the following drugs would produce vasoconstriction of the gingival vessels?
a. Levonordefrin
b. Phentolamine
c. Epinephrine
d. Propranolol
e. Phenylephrine
(a), (c) and (e)
Adrenergics
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