This story from Diabetes in Control Disasters Averted series describes why it is a good idea to check a finger prick sample of blood if there is a discrepancy between your recorded results and how you feel.
EHS_AD(“t”, “l”, “300×250”);
Patient states her alarm had gone off, but she did not hear it. She performed a fingerstick because she didn’t feel like she was low. It was 149. (UK 8.2) (See report.) The CGM recalibrated. She did not treat because she did not need to.
She was always taught to check a fingerstick before treating. She was glad she was taught that. Had she not checked she may have had to deal with a high glucose level later.
- Technology helps, but it needs human input.
- CGM’s accuracy may have proved to be accurate enough to treat from, but experience tells us each person responds differently, and accuracy can vary from person to person.
- If symptoms don’t match readings, perform a fingerstick.
- My recommendation is to continue to perform a fingerstick before treating, even though some say one does not have to.