A patient asks the nurse how an allergy can develop to a medication that has been taken before without problems. Which of the following is the most appropriate for the nurse to respond? 1. “It probably is due to your age, because as we age, the body becomes more sensitive to environmental stimuli, which leads to hypersensitivities.” 2. “What have you eaten in the last 24 hours? Most medications are altered by food, thereby producing different effects in the body.” 3. “Viral illnesses and exposure to various chemicals and environmental substances can alter the immune system and its response to previously benign stimuli.” 4. “Patients who have autoimmune disorders such as lupus or arthritis tend to develop sensitivities to common medications.”
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