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.

Q: 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.

A: medicine
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Q: Question: The kidneys secrete the hormone:
Options: <0> Calcitriol. <1> Renina <2> Angiotensin II. <3> Aldosterone <4> Calcitonin

A: biology
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Q: Question: Which of these species is a free radical?
Options: <0> The molecule NO. <1> The O2 molecule. <2> The N2O molecule. <3> The OH- anion. <4> The ClO- anion.

A:
chemistry
****