During a 30-minute safety check, which symptom would require the patient care technician to wake the patient for further evaluation?

The symptom that necessitates waking the patient for further evaluation is the lack of response to verbal questions. This could indicate a serious underlying issue such as altered consciousness, neurological impairment, or an adverse reaction to treatment. It is critical to assess the patient’s responsiveness, as a decreased level of consciousness can pose immediate risks, including the potential for respiratory failure or other complications.

In contrast, a patient sleeping soundly might simply be in a restful state, while a mild headache can often be attributed to minor causes and may not require immediate intervention. Additionally, feeling cold can be uncomfortable, but it does not necessarily indicate a medical emergency. Therefore, the absence of responsiveness is the most concerning symptom and warrants further evaluation to ensure the patient's safety.