TASK DEFINITION: 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'.
PROBLEM: Question: When comparing the characteristics of pragmatic or confirmatory clinical studies with explanatory or exploratory clinical studies, which of the following is an advantage of the former?
Options: <1> Information about subgroups of patients representative of the usual clinical practice. <2> Very homogeneous sample, with little variability. <3> Greater capacity to detect differences in the effectiveness of interventions. <4> Greater internal validity <5> Smaller sample size

SOLUTION: 1

PROBLEM: Question: Of the following reaction mechanisms, in which there is an inversion of the configuration from the reactant to the product of the reaction ?:
Options: <1> Bimolecular nucleophilic substitution (SN2). <2> Unimolecular elimination (E1). <3> Unimolecular nucleophilic substitution (SN1). <4> Addition Markovnikov. <5> Addition anti-Markovnikov.

SOLUTION: 1

PROBLEM: Question: In the nursing consultation the Pfeiffer test is being applied to F. P. of 80 years. From this instrument it has been described that:
Options: <1> Unlike other cognitive assessment scales, it only values memory and orientation. <2> It is very sensitive to detect small changes in the evolution of cognitive deterioration. <3> The alteration of the test is sufficient to establish the diagnosis of dementia. <4> It is the most comprehensive and complete of all cognitive assessment scales. <5> It does not detect very mild cognitive impairments.

SOLUTION:
5