Ontario Paramedic Practice Exam

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When should epinephrine be administered to a patient during anaphylaxis treatment?

Only if the patient has a history of allergies

At the start of an anaphylactic reaction

Epinephrine should be administered at the onset of an anaphylactic reaction due to its immediate effectiveness in counteracting the severe symptoms associated with anaphylaxis. This medication works quickly to constrict blood vessels, dilate airways, and stabilize the patient's condition, which can rapidly deteriorate during an allergic reaction. The administration of epinephrine is a critical first step and is paramount in preventing the progression of symptoms that could lead to life-threatening situations.

Timing is crucial in anaphylaxis management; the sooner epinephrine is given, the better the outcomes for the patient. Delaying its administration can lead to severe complications, such as airway obstruction or cardiovascular collapse. The other choices suggest actions that do not align with the best practice for treating anaphylaxis, highlighting the importance of immediate intervention when symptoms commence.

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After diphenhydramine is given

When the patient exhibits no symptoms

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