This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Dermatitis, Subject name: Dental
[{'content': 'Erythroderma % of skin involved is - \nSelect and explain. \nA. >90%, B. <30%, C. 30-60%, D. 60-70%', 'role': 'user'}, {'content': 'Answer: A \nExplanation: ERYTHRODERMA:-Erythema and scaling involving more than 90% of the body surface area. When scaling is the predominant feature-exfoliative dermatitis. Etiology:-1. Pre existing skin disease-psoriasis,lichen planus,contact dermatitis,seborrheic dermatitis,crusted scabies.2. Drugs- Allopurinol,Dapsone,Gold,Nifedipine,Sulpha drugs,isoniazid etc.3. Malignancy-lymphoma,leukemia.4. Idiopathic. Clinical features-Widespread erythema and scaling involving more than 90% of body surface.Fever with chills.Diffuse hair loss and nail dystrophy.Nail shedding. Treatment: Fluid and electrolyte balance.Replenishment of protein and iron.Treatment of underlying cause iadvl Textbook of dermatology page 490', 'role': 'assistant'}]