in 04/this year, was there any microbiology test result for the sputum of patient 79348?
select count(*)>0 from microbiologyevents where microbiologyevents.hadm_id in ( select admissions.hadm_id from admissions where admissions.subject_id = 79348 ) and microbiologyevents.spec_type_desc = 'sputum' and datetime(microbiologyevents.charttime,'start of year') = datetime(current_time,'start of year','-0 year') and strftime('%m',microbiologyevents.charttime) = '04'