What nursing intervention should be implemented for a patient exhibiting severe headache and altered mobility?

Maintaining a calm environment is crucial for a patient experiencing a severe headache, as stress and noise can exacerbate discomfort and tension. A tranquil setting helps to reduce anxiety and can aid in pain management, allowing the patient to relax and potentially mitigate the severity of their headache. Furthermore, if the patient has altered mobility, a calm environment can also ensure safety and support for any movements they may need to make, reducing the risk of physical strain or injury.

The other options, while relevant to patient care, do not directly address the immediate needs of someone suffering from a severe headache and altered mobility. Regular meals might not be as pertinent in the context of managing a headache, and counting the respiratory rate is more applicable in situations with respiratory distress rather than a headache. Monitoring vital signs every hour is important in a general assessment but might not be as effective as creating a soothing environment in this specific scenario focused on alleviating headache symptoms.