When managing a patient with a GCS score of 10, what is the first action?

When managing a patient with a Glasgow Coma Scale (GCS) score of 10, the priority is to ensure adequate oxygenation and circulation. A GCS score of 10 indicates that the patient is somewhat responsive but is at risk for deteriorating neurological status.

The first action should be to secure the airway and provide adequate oxygenation. Offering oxygen is crucial because compromised consciousness may lead to ineffective breathing or airway obstruction. Administering oxygen, therefore, is a critical step to ensure that the patient's brain and body receive sufficient oxygen – especially since low oxygen levels can exacerbate neurological issues.

Using a defibrillator, while essential in certain cardiac emergencies, does not directly address issues of consciousness and oxygenation in a patient with a reduced GCS. Starting CPR would only be necessary if the patient were in cardiac arrest, which is not indicated by a GCS of 10. Sedation is contraindicated in a scenario with decreased consciousness, as it may further depress the patient's respiratory drive or mask underlying neurological issues.

In summary, the first action is to provide oxygen because it directly addresses the critical needs of a patient with a GCS score of 10, focusing on preventing further complications related to brain function and oxygen supply.