What blood sugar levels are considered dangerous?
by Kevin harrigan
(England)
QUESTION: What blood sugar levels are considered harmful both high and low? I have recently started monitoring and my readings are just numbers, I do not know what they mean eg. 9.6' 11.2 etc.
Thanks
Kevin
ANSWER: Hi Kevin,
First, let me tell you that you are measuring your blood sugar levels in mmol/L that can easily
convert in mg/dL. Actually, there are 2 systems of measuring blood glucose (mmol/L - Europe-standard; mg/dL - USA-standard).
Second, what I can see from your
blood sugar readings, they are really high (quiet dangerous I'd say). The normal levels should be 4 - up to 6 (your measurement-standard).
You should also consult the pamphlet provided by the company when you purchased the
glucose meter for reference. However, I could tell that your levels (up to 11) are really high.
With regards to dangerous blood sugar levels, they are considered as follows:
- dangerously high - higher than 15
- dangerously low - lower than 3
However, keep in mind that although you might not have such blood sugar levels; if you have persistent high blood glucose at extreme levels, that will cause you very harmful damages, and is considered dangerous.
Another thing, keep in mind that different people do react differently to blood sugar levels oscillations.
For example, if a blood sugar reading of 4 does not cause me anything; it will cause hypoglycemia (sometimes severe) to another person.
Or, if a blood glucose reading of 11 does not cause you (for example) anything, it will damage my kidneys or liver.
So, interpretation depends on individual effects. However, it is good to keep blood sugar levels as normal as possible (within 4 - 8).
All the best!
Dr.Alba