In this task, you are given a multiple-choice question about healthcare. Answer the question based on your information and classify your answers into '1', '2', '3', and '4'.

Question: What dose should you administer orally every 12 hours of a drug whose plasma clearance is equal to 1 L / h if you want to reach an average concentration of 10mg / L equilibrium? Assume complete bioavailability (F = 1):
Options: <1> 120 mg. <2> 12 mg. <3> 200 mg. <4> 10 mg. <5> With this information it is not possible to estimate the dose necessary to reach this equilibrium concentration.
1

Question: If after establishing the confidence interval with respect to a difference between two independent means, we find that the zero value is not in the interval:
Options: <1> We can not make any decision regarding the null hypothesis of equality of means. <2> We can not reject the null hypothesis of equality between population means. <3> We must reject the null hypothesis of equality between population means. <4> We accept the null hypothesis of equality between the population means. <5> We reject the alternative hypothesis of equality between population means.
3

Question: A 26-year-old woman with no previous psychiatric history, she went to the ER brought by her parents, who explained that she had been overactive, nervous, insomniac for a few days. They explain that he obsessively reviews the house's electrical installation in search of video cameras and microphones. In the interview, she tells us that she is being watched by the Police because she is a galactic correspondent with special powers. Which of the following options should NOT be considered as a differential diagnosis?
Options: <1> Obsessive compulsive disorder <2> Schizophrenia. <3> Manic episode. <4> Psychosis due to the consumption of toxic substances. <5> Brain tumor.
1