In case of a patient allergic reaction, what is the first step a nurse should take?

• A. Administer antihistamines
• B. Call the doctor
• C. Stop the administration of the suspected allergen
• D. Monitor the patient's vital signs

Answer: (C)

In the event of an allergic reaction, the immediate priority is to prevent further exposure to the allergen responsible for the reaction. Stopping the administration of the suspected allergen is crucial because it halts the ongoing introduction of substances that could exacerbate the patient's symptoms. This action is foundational to managing an allergic reaction effectively.

Once the allergen is stopped, the healthcare team can then proceed with additional interventions such as administering medications like antihistamines or corticosteroids, as well as closely monitoring the patient's vital signs for any signs of deterioration. In some cases, notifying the doctor may also be necessary, especially if the patient's condition warrants it. However, the immediate and critical step is to remove the source of the allergen to prevent further harm to the patient.