Final answer:
The nurse should assess for dyspnea, diaphoresis, and palpitations as associated symptoms.
Step-by-step explanation:
Based on the patient's description of chest pain as 'squeezing, crushing' and their rating it as a 12 on a scale of 10, along with the pain starting while resting and feeling nauseous, the nurse should assess for the associated symptoms of dyspnea (shortness of breath), diaphoresis (profuse sweating), and palpitations (irregular heartbeat).