Which of the following is NOT one of the four main principles of first aid?

The identification of the option pertaining to "administer medication" as not being one of the four main principles of first aid is accurate. In first aid, the primary focus is on immediate care and assistance to stabilize a patient rather than providing treatments such as medication, which typically require professional medical training and oversight. The principles of first aid emphasize actions that can be taken by a bystander or first responder on the scene to address injuries and illnesses until professional help arrives.

The four main principles of first aid generally include promoting recovery, preventing further harm, and calling for professional help. Each of these plays a crucial role in ensuring the well-being of the injured or ill person. Promoting recovery involves creating a condition that allows for healing, such as calming the patient and ensuring they're in a safe environment. Preventing further harm includes actions such as protecting the affected area and removing any potential hazards. Calling for professional help is vital because medical professionals have the necessary resources and knowledge to provide comprehensive care.

Thus, by focusing on foundational supportive actions instead of administering medication, which should be left to trained healthcare providers, first aiders can effectively manage the situation until further medical assistance is available.