What is the first step to take when managing a suspected head injury?

Keeping the patient still is crucial when managing a suspected head injury because any movement can potentially worsen the injury or cause further damage to the brain or spinal cord. This initial step helps to prevent exacerbation of the injury and allows for a clearer assessment of the patient's condition.

In cases of head injury, immobilization minimizes the risk of complications and protects the patient from additional harm. Maintaining stillness can also help in preventing additional stress on any dislocated or fractured areas around the head and neck, which could lead to more severe outcomes.

While assessing for other injuries is important, it should be done with caution to avoid causing movement. Administering medication is not appropriate in the initial management of head injuries before receiving medical advice or in a pre-hospital setting due to the risk of complications. Performing CPR is only necessary if the patient is unresponsive and not breathing, which is not automatically the case with all suspected head injuries. Thus, prioritizing the patient's stability and safety through stillness is vital in the initial care process.