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: Acetylsalicylic acid is a compound whose pKa is 3.5. What percentage of a dose of this product can be absorbed in the stomach fasting (pH 1.5)? 
 Options:  <0> Less than 10% <1> Between 10% and 20%. <2> More than 90% <3> Between 20% and 40%. <4> 50%
pharmacology

Question: Young person who goes to the emergency room for second degree flame burn of 10% of the body surface, affecting the right arm in an extensive and circular way. There is no arterial pulse in the hand measured by Doppler. What is the treatment of choice? 
 Options:  <0> Cures with occlusive silver sulfadiacin and evaluation of depth per week. <1> Lymphatic drainage and assess a vascular by-pass. <2> Escarotomy or emergency decompression incisions. <3> Expectant behavior <4> Amputation of the extremity.
medicine

Question: Indicate which of the following clinical manifestations are NOT specific to dehydration in the infant: 
 Options:  <0> Weightloss. <1> Fontanelle sunk. <2> Dry mucous membranes <3> Hypotension <4> Bradycardia

nursery