How high can your blood sugar level be?

Question

My friend has recently become a diabetic and I was wondering how high could a person's blood sugar be?

My dad has had in the 20's before - is there any higher?

My friend has Type 1 Diabetes.

Answer 1

hi, firstly no disrespect to anyone who has answered this question but if a person had a blood glucose of 300(in the UK anywhere else i dont know there values) then they would be in a diabetic coma or dead. the normal blood glucose levelbefore a meal should be between 4 and 6 mmol and 2 hours after a meal it should be around 10. some peple do run on blood glucose of higher but this is when they can have prems with their diabetes and would be classed as poorly controlled. anyone with a blood glucose over 20 would be entering a area where they can become very unwell and may need further medical help.

just to ad on in american they use a different value it is 90-130mg/dl which is equivalent to 4-6 mmol/l

Answer 2

1

Answer 3

I've had well into the 30s and know someone who claims to have had 42! I always think it's funny how a difference of 2 or 3 mmol/l can have a hudge effect if your blood sugar is low but much less if it's high (eg. a difference between 3 and 6 is a v big difference in how you feel, but there's not much difference between 30 and 33!). Anyway, I wouldn't recomend your friend trys it out - not something you'd want to put yourself through if you can avoid it! lol! xx

Answer 4

In the Uk blood sugars should be under 5 from a fasting blood tst , if they go to 7 then this is to be treated by diet control , over this and u need to have treatment in the form of pills or injection , most type 2 diabetes fall into this pattern , but type 1 is different , and is usualy insulin dependant , medical help is needed in both types and regular monitoring , ie blood tests, urine tests and sight , and podiatrist are included .

Answer 5

Why do Americans keep answering UK questions? Blood sugar levels should be around 4-6 millimols. 10 is quite high and would indicate diabetes in an undiagnosed diabetic. 20 is high. It can go higher, but becomes quite dangerous.

Answer 6

People that do not have diabetes usually have blood sugars between 70 and 110. However, people with diabetes have a goal fasting (before eating) blood sugar of 90-130. Once blood sugars get above about 300 or 400 (although depending on the patient they may reach 1000), a person is at risk for a life-threatening condition called "diabetic ketoacidosis." This condition occurs most often in younger patients and Type 1 Diabetes, but can occur in Type 2 as well. It is often caused by missed insulin doses, excessive intake of sugars/carbohydrates (like sodas, sweets), and infections (like urinary tract infections, pneumonia, etc.). Signs of this condition are high blood sugars, excessive thirst and urination, nausea/vomiting, confusion, rapid heartbeat, and eventually coma. This is a medical emergency, and should be treated as one. Additionally, a blood sugar of 20, is not safe either. The body needs a certain amount of circulating sugars to "feed" your muscles, liver, and fat. At a blood sugar of 20, a person may experience nausea/vomiting, chills, sweating, confusion and eventually coma. This can also be an emergency situation in which the person should be given foods with sugar in them immediately (ie: soda, juice, candy), and a doctor should be notified.

Answer 7

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Answer 8

Yes, I had a glucose level of 33 at one time.. I was surprised I didn't put myself in a coma. It was actually too high for the meter to register.. most meters will go up to 30.

My grandmother, when she was first diagnosed had a glucose level of 99.5 (No joke), and the when we got her to the ER, they told us that had we waited 5 minutes longer she would have died. She was, however, in a coma for nearly a month. The doctors were so stunned to see a person with that level of glucose, that she has been immortalized in the Diabetes Education classes given at the hospital.

As for the other posters, not all of us are American, we Canadians and British use the mmol/l or mmol/L method and you use the mg/dl.

So, for instance, my sugar reading of 33 would be 594.

Hope this helps.

Answer 9

Just a comment to all the Americans who keep saying that a level of 20 is low Canadian and American ways of measuring blood glucose is totally different
a normal blood glucose for the way it's measured in Canada is a level between 4-8

Answer 10

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