what would you tell week-1 you about CGM
what would you tell week-1 you about CGM. I am not trying to be the "source?" guy. I would just like a source. Panicked over a first-day sensor reading and rebuilt my week around it. It was the sensor. Brought the whole CGM export to my appointment rather than one number. Entirely different conversation. Assumed the…
The three numbers, and what each one can and cannot tell you.
A1c is an average over about three months, weighted to the recent weeks. It cannot show variability and it lags change. Continuous monitoring shows the shape — excursions, overnight, time in range — and is where improvement usually becomes visible first. Fingersticks are point measurements, useful for sanity-checking a sensor and for specific questions.
Most of the frustrated posts here come from expecting one of the three to answer a question that belongs to another. And all three are inputs to a conversation with whoever manages your care, which is not this board.
Is that a first-day sensor reading?
Time in range told me far more than the average did. Two quarters with the same A1c looked completely different on the sensor.
Yes — the person managing your diabetes is the one to talk to, and this board is explicit about that.
That A1c change is inside the assay’s variability and the interval you measured over is too short.
Small fix — insulin secretion in this class is glucose-dependent, which is precisely why the risk you describe comes from the other agent.