Why CGM and Meter readings may differ

By Type1Lou Latest Reply 2014-06-13 11:33:15 -0500
Started 2014-06-12 17:35:28 -0500

Here's a link to a Medtronic video explaining why a CGM (Continuous Glucose Monitor) sensor reading may differ from a blood glucose meter reading. http://www.loop-blog.com/blog/Why-Sensor-Gluc... I found it enlightening.

8 replies

Trudie Ann
Trudie Ann 2014-06-13 09:12:11 -0500 Report

Thanks for the post. I know there were some earlier questions about this so I hope they read this and watch the video. It is very informative.

neverlowbg 2014-06-12 23:26:02 -0500 Report

That is one reason I thru my cgm in the drawer and medtronic gave me a meter that talks to my pump cgm are good if you test like your supposed to with them and they give your endo a look at 24 hr coverage for a week I'll do it once a year but not daily even with insurance there expensive and they kinda hurt to insert them

Type1Lou 2014-06-13 10:36:21 -0500 Report

I haven't used a CGM but think it would help resolve some issues I have with Dawn Phenomenon and high fastings. Also,a CGM would have alerted me to a low I had last night. I woke up and tested at 1 am; found out I was at 44! The cost of CGM's is what is stopping me from using them and upgrading to Medtronic's 530G Minimed pump with Enlite since Medicare doesn't cover the CGM's. I'll check with my endo to see if he has access to temporary/loaner CGM's.

neverlowbg 2014-06-13 11:33:15 -0500 Report

Hope your endo has a loaner you can use for a week if your having lows at night and eating properly I'm shure you do your basal rate may need to be reduced at night hours mine had to be increased at night but decreased during day my endo saw that with the cgm I wore for a week and now my numbers are great she will probably make me wear one once a yr for a week she said just to get a good picture of how pump is working or if my numbers bg start getting out of wack I'll have to wear it so she can figure out what's going on but I have the 530 with the USB bg meter from Bayer that tells pump my bg every time I test and once a week at a reservoir change I download that to her and she can see that when she needs to as it charts bg readings basal rate carbs I input and bolus and she can make changes if need be from that charting from pump I am old school but I love the new school pump I might try some new school other things out them I won't be called a dinosaur lol

Glucerna 2014-06-12 18:02:06 -0500 Report

Thanks for sharing this. People often wonder why they still have to use a glucometer when they're wearing a CGM, and this video gives a great explanation. ~Lynn @Glucerna

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