Which action should be taken if a patient is exhibiting signs of anaphylactic shock?

In cases of anaphylactic shock, immediate action is crucial as this condition can rapidly deteriorate and become life-threatening. Providing oxygen and assessing the airway is essential for a patient exhibiting signs of anaphylaxis. Anaphylaxis can lead to swelling of the airway, difficulty breathing, and potentially airway obstruction. Ensuring that the airway is clear and that the patient is receiving adequate oxygen is a priority in this emergency situation.

Administering oral antihistamines, waiting for EMS, or offering reassurance may cause detrimental delays in addressing the critical symptoms of anaphylactic shock. Oral antihistamines take too long to act, EMS may not arrive in time to avert serious consequences, and reassurance does not address the need for immediate airway management and oxygenation. Thus, the best course of action is to provide oxygen and assess the airway to stabilize the patient and prepare for further treatment, such as epinephrine administration if indicated.