This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Photosensitive disorders, Subject name: Dental
[{'content': "A 45 year old farmer has itchyerythematous papular lesions on face, neck, 'V' area of chest, dorsmn of hands and forearms for 3 years.The lesions are more severe in summers and improve by 75% in winters. The most appropriate test to diagnos(.e.titil:) condition would be - \nSelect and explain. \nA. Skin biopsy, B. Estimation of IgE levels in blood, C. photo Patch Test, D. Intraderrnal prick test", 'role': 'user'}, {'content': 'Answer: C \nExplanation: The photo-patch test is conducted to examine the influence of rays when a chemical substance is placed on the skin. Twenty- four to 48 hours after a material that is suspected of causing pho- tosensitive disease is pasted on the skin, the site is exposed to UV rays. Ref Harrison20th edition pg 1234', 'role': 'assistant'}]