were there any organisms found in the last throat culture microbiological test of patient 4469?
select count(*)>0 from microbiologyevents where microbiologyevents.hadm_id in ( select admissions.hadm_id from admissions where admissions.subject_id = 4469 ) and microbiologyevents.spec_type_desc = 'throat culture' and microbiologyevents.org_name is not null order by microbiologyevents.charttime desc limit 1