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@pooja-m

My CGM and meter showed completely different numbers

I had a situation where my CGM showed a glucose reading around 65, but when I checked with my glucometer it showed around 100.

That difference made me unsure about which number I should trust and whether I should take action based on the CGM alert.

For people who use both CGMs and finger-stick meters, how do you handle situations where the numbers do not match? Is there a usual reason this happens, like timing differences or sensor issues?

I'm trying to understand how experienced CGM users approach these situations without getting confused.

163281 views
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@anandreddy

This happened to me when I first started using a CGM. I expected both devices to show the exact same number, so seeing a difference was confusing at first.

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@renusingh

Same here. I had to learn that the two devices are not always measuring the same thing at the exact same moment.

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@karanjoshi

I usually look at the situation around the number too. If the reading seems unexpected compared with how I feel, I don't ignore that difference.

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@jyotisingh

That makes sense. The number by itself doesn't always tell the whole story.

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nidhisharma
@nidhisharma

The first time I saw a big gap between my CGM and meter, I thought the sensor was broken. Later I learned there can be normal reasons for differences.

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swathireddy
@swathireddy

I had the same reaction. It is stressful when you are new to CGM because you don't know what is normal.

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@rakesh04

The trend arrows helped me understand that one number is only a snapshot.

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@swati76

I think this is one of the biggest adjustments with CGM. People expect it to replace every finger-stick check, but there are situations where you may need to look closer.

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@prakash37

Exactly. Learning when to question a reading is part of becoming comfortable with the technology.

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@ritika32

I keep both devices because they serve different purposes for me. The CGM helps me see patterns, while the meter is useful when I need another check.

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@harshvardhan

This is how I think about it too. They are tools that give different pieces of information.

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@anjali-r

I had to stop comparing every single reading and focus more on patterns over time. That reduced a lot of the stress for me.

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@mohit09

The mental side is real. Constantly checking and comparing numbers can become overwhelming.

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@atulshah

I think everyone using CGMs eventually has this question. The technology is helpful, but understanding its limitations is just as important.

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@arjun28

The biggest lesson for me was not making decisions based on a single confusing moment. I learned to look at the overall situation and follow my diabetes plan.

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PM
@pooja-m

This is helpful. I was assuming one device must be wrong, but it sounds like there are several reasons they may not match.

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