Table 1.

Blood glucose and ketone measurements for MRS time course (n = 8) and fMRI bolus (n = 30) studies

MRS time course study
Glucose bolusKetone ester bolus
PREPOST 10 minPOST 80 minPREPOST 10 minPOST 80 min
Blood glucose, mg/dL (mmol/L)91 ± 13 (5.1 ± 0.7)95 ± 14 (5.3 ± 0.8)89 ± 12 (4.9 ± 0.7)89 ± 6 (4.9 ± 0.3)82 ± 9 (4.6 ± 0.5)67 ± 7 (3.7 ± 0.4)
Blood βHb, mmol/L0.2 ± 0.10.2 ± 0.20.2 ± 0.10.1 ± 0.10.4 ± 0.43.6 ± 0.7
Bolus study
Glucose bolusKetone ester bolus
PREPOST 10 minPOST 50 minPREPOST 10 minPOST 50 min
Blood glucose, mg/dL (mmol/L)95 ± 12 (5.3 ± 0.7)101 ± 16 (5.6 ± 0.9)90 ± 13 (5.0 ± 0.7)92 ± 11 (5.1 ± 0.6)91 ± 12 (5.1 ± 0.7)74 ± 12 (4.1 ± 0.7)
Blood βHb, mmol/L0.2 ± 0.10.2 ± 0.10.1 ± 0.10.1 ± 0.11.4 ± 1.23.5 ± 1.1
  • The Abbott Precision Xtra Glucose & Ketone Monitoring System was used for all fingerstick blood measurements. PRE = prebolus; POST = postbolus.