What is the first action to take for an adult patient with a blood glucose level under 60 mg/dL who can protect their airway?

The first action to take for an adult patient with a blood glucose level under 60 mg/dL who is able to protect their airway is to administer oral glucose if they can swallow. This approach is appropriate because administering oral glucose provides a quick and effective way to raise the patient's blood sugar levels without the need for invasive procedures.

When a patient is conscious and able to swallow, oral glucose is safe and convenient. It allows the patient to absorb glucose through the gastrointestinal tract, which can raise their blood glucose level relatively quickly. This method also avoids the risks associated with intravenous access and the potential complications that come with administering dextrose in a more invasive manner.

In contrast, other options like administering IV dextrose are more appropriate for patients who are unable to swallow or those who are unconscious or have an unclear airway protection. Calling for advanced medical support may be necessary after providing immediate care but should not be the first action if the patient can safely take oral glucose. Evaluating blood pressure, while important in overall patient assessment, does not directly address the immediate concern of low blood glucose in this situation.