Final answer:
The nurse should advise the patient with asthma to avoid extremely cold temperatures to prevent bronchoconstriction and potential asthma attacks.
Step-by-step explanation:
The nurse should instruct a patient newly diagnosed with asthma to avoid extremely cold temperatures, as it may cause bronchoconstriction. When airways are exposed to cold air, they can tighten and lead to an asthma attack, which is characterized by difficulty breathing, coughing, wheezing, and chest tightness. Other triggers that can cause asthma exacerbation include air pollution, allergens, airway infections, and exercise. It is important for those with asthma to understand their triggers and avoid them to help control their asthma symptoms and prevent attacks.