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'.

Q: Question: In the pharmacological treatment of hallucinations and delusions, what is the correct answer? 
 Options:  <1> Between 30-50% of people with psychosis treated with antipsychotics continue to experience difficulties derived from clinical symptoms. <2> Antipsychotics act on the positive symptoms of psychosis, but mainly eliminate the negative symptoms. <3> The extrapyramidal side effects they cause are intractable. <4> When an antipsychotic does not improve symptoms, changing the treatment is not advisable. <5> It is advisable not to combine it with psychological treatment until the psychotic symptoms have disappeared.

A: 1
****
Q: Question: When you value the oncological patient, in which Functional Pattern of M. Gordon is included the Barthel Index ?: 
 Options:  <1> Cognitive-Perceptual. <2> Activity-Exercise. <3> Perception-Health Management. <4> Nutritional-Metabolic. <5> Self-perception-Self-concept

A: 2
****
Q: Question: In suppression ion chromatography: 
 Options:  <1> A single column is used and the conductivity of the mobile phase is kept very low. <2> The eluent must be able to be removed selectively after separation and prior to the conductometric measurement. <3> The eluent incorporates a regenerating solution of strong acid flowing in the same direction as the mobile phase. <4> Weak exchangers are used from polystyrene polymers. <5> A mobile phase with ionic conductivity gradient is used.

A:
2
****