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: Reactions that use copper (I) salts as reagents to replace the nitrogen in the diazonium salts are called reactions of: 
 Options:  <0> Sandmeyer <1> Chichibabin <2> Peterson. <3> Gabriel. <4> Diels-Alder.
chemistry

Question: In which of the following anxiety disorders is considered that there is no pharmacological treatment of choice? 
 Options:  <0> Obsessive-compulsive disorder <1> Panic disorder (anguish disorder). <2> Social phobia. <3> Specific phobia. <4> Post-traumatic stress disorder.
psychology

Question: A 32-year-old man with no history of interest or cardiovascular risk factors. Clinic of dyspnea when climbing a floor of stairs of 1 month of evolution. Consultation due to sudden syncope preceded by exertion. Family history of death not explained abruptly in his brother. On physical examination, a more audible rumen systolic murmur with aortic focus is highlighted. The electrocardiogram performed in the consultation shows a sinus rhythm with a compatible pattern of left ventricular hypertrophy. An echocardiogram was performed to document an important asymmetric hypertrophy of the interventricular septum with a subvalvular dynamic gradient of 70 mmHg with moderate secondary mitral regurgitation and preserved left ventricular ejection fraction. Which therapeutic option is the LESS indicated? 
 Options:  <0> Beta-blockers. <1> Digoxin <2> Calcium-non-dihydropyridine antagonists. <3> Implantable automatic defibrillator. <4> Surgical septal myomectomy of Morrow.

medicine

