Given the task definition and input, reply with output. In this task, you are given a question and answer options for that question. Using this information, you have to classify each text into different topics: medicine, nursery, psychology, chemistry, pharmacology, biology.

Question: A 78-year-old man who underwent cardiac catheterization with revascularization of the right coronary artery 3 weeks ago and consulted for nausea and vomiting of 3 days of evolution. It presents arterial pressure of 185/85 mm Hg and purple lesions on the toes of both feet. In the analytical, urea 230 mg / dL and creatinine 5.8 mg / dL were observed. What is the most likely diagnosis?
Options: <0> Malignant arterial hypertension. <1> Acute tubular necrosis by contrast. <2> Rapidly progressive renal failure. <3> Renal atheroembolic disease. <4> Bilateral renal artery stenosis.
medicine