has patient 25869 had pco2 tests in 2105?
select count(*)>0 from labevents where labevents.itemid in ( select d_labitems.itemid from d_labitems where d_labitems.label = 'pco2' ) and labevents.hadm_id in ( select admissions.hadm_id from admissions where admissions.subject_id = 25869 ) and strftime('%y',labevents.charttime) = '2105'