The nurse is caring for a patient who needs education on his medication therapy for allergic rhinitis. The patient is to take clemastine (Tavist) daily
In providing educational interventions regarding this medication, what is the most important instruction on the action of the medication? A) It blocks the effects of histamine.
B) It is used to treat atrial and ventricular dysrhythmias.
C) It competitively inhibits the rate-limiting enzyme in the liver.
D) It leads to bronchodilation and relaxes smooth muscle in the bronchi.
A
Feedback:
Clemastine blocks the effects of histamine at the histamine-1 receptor sites, decreasing the allergic response. It is prescribed to treat allergic rhinitis. Antiarrhythmic medications are used to treat atrial and ventricular dysrhythmias. Beta-hydroxy-beta-methylglutaryl coenzyme A reductase inhibitors are used to lower blood cholesterol by competitively inhibiting the rate-limiting enzyme in the liver. Beta-adrenergic agents lead to bronchodilation and stimulate beta2-adrenergic receptors in the smooth muscle of the bronchi and bronchioles.
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