By contrast , post-OGTT glucose levels were significantly higher during IV-I : Glucose during IV-I versus off insulin at 120 min was 203.9 15.1 vs. 151.6 10.2 mg/dL , respectively ( P < 0.05 ) ; 49 % of OGTTs became transiently diabetic ( > 200 mg/dL at 120 min ) when receiving IV-I .