did there exist any organism found in the first peripheral blood lymphocytes microbiology test of patient 2957 during this hospital visit?
select count(*)>0 from microbiologyevents where microbiologyevents.hadm_id in ( select admissions.hadm_id from admissions where admissions.subject_id = 2957 and admissions.dischtime is null ) and microbiologyevents.spec_type_desc = 'peripheral blood lymphocytes' and microbiologyevents.org_name is not null order by microbiologyevents.charttime asc limit 1