Final answer:
The nurse evaluates that the patient understands the principles of foot care if the patient makes the statement: 'I should look at the condition of my feet every day.'
Step-by-step explanation:
The nurse evaluates that the patient understands the principles of foot care if the patient makes the following statement: 'I should look at the condition of my feet every day.' This statement shows that the patient understands the importance of daily foot inspection to identify any abnormalities or signs of infection. It is crucial for diabetic patients to regularly assess their feet for cuts, sores, blisters, redness, or swelling to prevent complications.