Jeremy checks his blood glucose:

  • Before meals
  • Before exercise and hourly during and afterwards
  • Before bed
  • Whenever he feels his blood glucose may be too low (hypoglycemia, <80 mg/dL) or too high (hyperglycemia, >300 mg/dL)

Jeremy has a continuous glucose monitor (Dexcom) that includes a waterproof sensor and transmitter attached to his body and replaced weekly, and a (non-waterproof) wireless receiver that looks like an MP3 player. The Dexcom has audible low and high blood glucose alarms, which can be switched to vibrate mode. He still needs to test himself with a finger prick and conventional glucose meter twice daily to calibrate the Dexcom and whenever he needs to correct high blood glucose with insulin. He should wash his hands before testing. He can test himself, but he does need access to his lancet device and lancets, glucose meter and test strips, which he keeps together in a bag that should stay safe and accessible. If there is the possibility of low blood glucose he should never be left alone.