instruction: has there been any microbiological test done to patient 031-3355's blood, venipuncture in 12/2105?
response: SELECT COUNT(*) FROM microlab WHERE microlab.patientunitstayid IN (SELECT patient.patientunitstayid FROM patient WHERE patient.patienthealthsystemstayid IN (SELECT patient.patienthealthsystemstayid FROM patient WHERE patient.uniquepid = '031-3355')) AND microlab.culturesite = 'blood, venipuncture' AND STRFTIME('%y-%m', microlab.culturetakentime) = '2105-12'