instruction: how many hours have elapsed since patient 005-48105 last received ace inhibitor on their current hospital visit?
response: SELECT 24 * (STRFTIME('%j', CURRENT_TIME()) - STRFTIME('%j', treatment.treatmenttime)) FROM treatment WHERE treatment.patientunitstayid IN (SELECT patient.patientunitstayid FROM patient WHERE patient.patienthealthsystemstayid IN (SELECT patient.patienthealthsystemstayid FROM patient WHERE patient.uniquepid = '005-48105' AND patient.hospitaldischargetime IS NULL)) AND treatment.treatmentname = 'ace inhibitor' ORDER BY treatment.treatmenttime DESC LIMIT 1