Question

a 48-year-old client is experiencing a severe anaphylactic reaction to an injection of contrast media. which pharmacologic agent is of greatest use in this situation? dopamine. loratadine. nitroprusside. epinephrine. multiple choice - single answer to answer this item, choose a single answer.

Explanation:

Anaphylactic reactions are severe allergic responses. Epinephrine (adrenaline) is the first - line drug for anaphylaxis as it counteracts the effects of histamine release, like bronchoconstriction, vasodilation, and hypotension. Dopamine is mainly for treating low blood pressure and poor cardiac output in non - anaphylactic scenarios. Loratadine is an anti - histamine, but it's not the first - line or most effective in severe anaphylaxis. Nitroprusside is used for hypertensive emergencies, not anaphylaxis.

Answer:

D. Epinephrine.