instruction: what was the name of the first lab test patient 51177 had received since 03/2105?
response: SELECT d_labitems.label FROM d_labitems WHERE d_labitems.itemid IN (SELECT labevents.itemid FROM labevents WHERE labevents.hadm_id IN (SELECT admissions.hadm_id FROM admissions WHERE admissions.subject_id = 51177) AND STRFTIME('%y-%m', labevents.charttime) >= '2105-03' ORDER BY labevents.charttime LIMIT 1)