instruction: how many days have passed since patient 96833 received a laboratory test of hemoglobin for the last time during their current hospital visit?
response: SELECT 1 * (STRFTIME('%j', CURRENT_TIME()) - STRFTIME('%j', labevents.charttime)) FROM labevents WHERE labevents.itemid IN (SELECT d_labitems.itemid FROM d_labitems WHERE d_labitems.label = 'hemoglobin') AND labevents.hadm_id IN (SELECT admissions.hadm_id FROM admissions WHERE admissions.subject_id = 96833 AND admissions.dischtime IS NULL) ORDER BY labevents.charttime DESC LIMIT 1