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: Which of the following statements about the steady-state infusion of a drug is true? 
 Options:  <0> The concentration reached in steady state of equilibrium depends exclusively on the clearance. <1> The time necessary to reach the steady state of equilibrium depends on the volume of distribution. <2> The concentration reached in a steady state depends exclusively on the elimination half-life. <3> The concentration achieved in the steady state equilibrium depends on the clearance and the infusion rate. <4> The time required to reach the steady state of equilibrium depends on the clearance.
pharmacology

Question: A 24-year-old student who, after three weeks of a cold in the upper respiratory tract, visited the doctor for a sensation of numbness in his hands and loss of limb strength in recent days. The picture was preceded by low back pain. In the exploration, it stands out, decrease of asymmetric muscular force in upper and lower extremities, loss of osteotendinous reflexes. In this patient the most likely diagnosis is: 
 Options:  <0> Myasthenia gravis. <1> First outbreak of multiple sclerosis. <2> Acute inflammatory demyelinating polyradiculopathy. <3> Dermatomyositis <4> Amyotrophic Lateral Sclerosis.
medicine

Question: It has a single nucleus in central position: 
 Options:  <0> Skeletal muscle fiber. <1> Cardiac muscle fiber. <2> Osteoclast <3> Thrombocyte <4> Erythrocyte

biology