ButDoISay

My Life on the Medtronic MiniMed 670G Insulin Pump and More.

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Category: CGM Sensors

Upper Thigh Sensor Insertion Sites Seem to Take Longer to Stabilize

I have noticed that when I am using the outer side of my upper thigh as my sensor site, it takes such a long time for the sensor to stabilize and enter Auto-Mode for the Medtronic MiniMed 670G.

During my pump training, I was told that Medtronic now officially recognizes the outer side of the upper thigh as a good insertion site for the Guardian sensor. This was not the case for the enlite sensor.

However after stabilizing, from my experience, this site gives the some of the best and consistent sensor readings.

TIP: To shorten the time it will take the sensor to stabilize and enter Auto Mode, you can insert the new sensor and leave it in place a couple hours prior to replacing the current sensor.

Kicked Out of Auto Mode….Again!

Guardian Sensor Stability and Auto Mode

I have been trying to get back to Auto Mode for the better part of the day today.

As you can see my readings in manual mode were not so bad and I would say those were stable sensor readings. I am not sure what reading variance the Auto Mode algorithm considers acceptable to enter Auto Mode.

Variance does not look too shabby but Auto Mode did not like it.

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How Do Guardian/Enlite CGM Sensors Work?

Continuous Glucose Monitor

Continuous Glucose Monitoring (CGM) sensors are finicky, expensive and we all know of how much of a process it is for Medtronic to replace faulty sensors. For me, changing Medtronic CGM sensors is a ritual I do not look forward for many reasons. Getting my sensor inserted and working correctly seems to be a hit-or-miss proposition.

But the delicate nature of sensors is due to the fact they are miniature electrodes that are affected by small changes in the environment around them including small movements or presence of interfering chemical substances.

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