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: One of the components of injectable formulations are preservatives. This category includes different excipients with different mechanisms of action. Which of the following is used as a chelating agent ?: 
 Options:  <0> Butylhydroxyanisole. <1> Ethylenediaminetetraacetic acid. <2> Ascorbic acid. <3> Propyl gelate <4> Tocopherol.
pharmacology

Question: For the care of the nipple cracks during lactation it is recommended: 
 Options:  <0> Washed with water and neutral pH soap after each feeding. <1> Spread a few drops of milk and let air dry after the tetada. <2> The use of healing ointments. <3> 70º alcohol applied through sterile gauze between shots. <4> Apply cold between shots.
nursery

Question: A 62-year-old man with type 2 diabetes mellitus of 10 years of evolution performs treatment with metformin and sitagliptin. Does little physical exercise and performs a proper diet. In the last 6 months he has lost weight and has more asthenia. Their glycemic controls have deteriorated, going from basal glycemia of 110-140 mg / dl to glycemias of 170-200 mg / dl, as well as their glycosylated hemoglobin, which has gone from 7.1 to 8.5%. The most appropriate therapeutic measure to perform is: 
 Options:  <0> Increase the intake of protein and long chain carbohydrates in the diet to improve asthenia and weight loss. <1> Associate a dose of basal insulin with the treatment. <2> Associate acarbose treatment. <3> Replace sitagliptin with pioglitazone. <4> Replace metformin with glimepiride.

medicine