title: [Clinical advantages of routine analyses].
abstract: The results of a retrospective study of the clinical usefulness of routine laboratory workup are considered in a group of 324 new patients, seen in an outpatient medical service during 12 months. From a total of 3 564 laboratory determinations, 294 were abnormal (8.2%), and of this group, 59 were unexpected findings that led to 15 new diagnosis, of clinical significance. Even with this low yield of usefulness, it is felt, in concordance with the literature, that is difficult to condemn its use at the present time. Brief considerations are given in favor and against its use.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001774:Blood Chemical Analysis; D003933:Diagnosis; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D007388:Internal Medicine; D008297:Male; D008800:Mexico; D008875:Middle Aged; D010808:Physical Examination; D014556:Urine / Q000032:analysis*
vernacular_title: Beneficio clínico de los examenes de rutina.