instruction: when has patient 022-187132 received a prescription for furosemide (lasix) inj 40 mg first on this hospital encounter?
response: SELECT medication.drugstarttime FROM medication WHERE medication.patientunitstayid IN (SELECT patient.patientunitstayid FROM patient WHERE patient.patienthealthsystemstayid IN (SELECT patient.patienthealthsystemstayid FROM patient WHERE patient.uniquepid = '022-187132' AND patient.hospitaldischargetime IS NULL)) AND medication.drugname = 'furosemide (lasix) inj 40 mg' ORDER BY medication.drugstarttime LIMIT 1