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Get Fit Check > Diabetes > What should I do if my blood sugar level exceeds 400 mg/dl (22 mmol/l)?
Diabetes

What should I do if my blood sugar level exceeds 400 mg/dl (22 mmol/l)?

April 17, 2025 8 Min Read
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Table of Contents

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  • What is taken into account extreme hyperglycemia?
  • What causes hyperglycemia?
  • What ought to I do if my blood sugar stage is above 400 mg/dl?
    • Check your blood sugar once more
    • Ketone Check
    • In case you have an insulin dependency, take insulin
    • I drink a glass of water
    • 20 minutes on foot
    • In case your blood sugar ranges do not drop after just a few hours, name your physician.
  • What’s the quickest technique to defeat excessive blood sugar?
  • What if I can not decrease my blood sugar stage?

In case your blood glucose stage exceeds 400 mg/dL, it’s thought-about extreme hyperglycemia and requires fast warning.

This text explains what to do in case your blood sugar stage is above 400 mg/dl.

What is taken into account extreme hyperglycemia?

Most individuals with diabetes start to really feel symptomatic of hyperglycemia between 180-200 mg/dL. In case you have an insulin dependence, blood glucose ranges above 200 mg/dL must be handled with insulin.

In case your blood glucose stage exceeds 250 mg/dL (13.89 mmol/L), you need to have a ketone urine take a look at to rule out diabetic ketosidosis (DKA). DKA is a harmful complication of diabetes and might be deadly if not handled instantly.

In case you are experiencing blood glucose ranges above 250 mg/dL for a number of hours together with delicate, reasonable or excessive ketones, search fast medical consideration.

Individuals with diabetes are prone to changing into diabetic coma if their blood sugar ranges attain 600 mg/dL or extra in ketones. Excessive blood sugar ranges normally require fast medical session in a hospital setting.

What causes hyperglycemia?

Hyperglycemia ranges are a direct results of not having sufficient insulin within the physique (cells).

A number of components can contribute dangerously to hyperglycemia ranges:

  • Insulin administration missed: You could skip it, otherwise you is probably not taking sufficient insulin, or your blood sugar ranges could rise.
  • Malfunctioning tools: A malfunction of the insulin pump or steady glucose monitor (CGM) could end in lacking early warning indicators or not being ingested.
  • Sickness or an infection: The physique’s response to sickness can elevate blood sugar ranges.
  • Dietary selection: Consumes massive quantities of carbohydrates with out correct insulin coating.
  • stress: Emotional or bodily stress may cause hormonal adjustments that enhance blood sugar ranges.
  • Dose interactions: Sure medication and steroids can have an effect on blood glucose management.

What ought to I do if my blood sugar stage is above 400 mg/dl?

In case your blood sugar stage is above 400 mg/dL, there are a number of fast steps to shortly decrease your blood sugar stage.

Check your blood sugar once more

Typically, the continual glucose monitoring (CGM) system and blood glucose meter readings could also be incorrect.

Wash your fingers and take a look at your blood sugar once more earlier than making any drastic measurements (in the event you’re studying excessive CGM, take a look at your blood sugar manually).

Typically sugar or one other substance is misreading first. So it is at all times finest to double verify to verify your blood sugar ranges are literally excessive.

Ketone Check

Ketones are a kind of chemical that the liver produces to interrupt down fats for vitality when the physique lacks insulin to make use of glucose for vitality.

Your physique resorts to doing this after prolonging your excessive blood sugar ranges, and utilizing ketones is extraordinarily harmful.

You possibly can take a look at ketones with easy residence urine or blood exams.

In case you have ketones, this normally signifies that it’s good to take further insulin to decrease your blood sugar ranges (most individuals who develop ketones have sort 1, insulin-dependent diabetes).

In case you have ketones, discuss to your physician about how insulin correction components will change.

In case you have an insulin dependency, take insulin

For those who retest your blood glucose, take a look at your ketones (whether or not you’ve or not), and take a look at for insulin dependence, the subsequent factor you do in case your blood glucose is above 400 mg/dL is to take insulin instantly.

You may wish to take fast-acting insulins like Humanlog, Novolog, Fiasp, Lyumjev, and long-acting insulins like Lantus and Levemir. This could begin to make your blood sugar ranges quicker.

In case you are utilizing an insulin pump and assume that the insulin pump could also be malfunctioning, strive changing the insulin pump website after a handbook corrective injection of insulin.

Malfunction of the insulin pump website can shortly result in hyperglycemia ranges, particularly if it happens in a single day throughout sleep.

It is because insulin pumps use solely short-acting insulin, so while you cease working, your physique will shortly run out of insulin onboard, not like when you’ve a number of day by day injections utilizing long-acting insulin.

I drink a glass of water

Hyperglycemia ranges can result in dehydration and should contribute to diabetic ketoacidosis (DKA). In case your blood sugar stage is excessive, chances are you’ll urinate greater than ordinary. This makes ingesting water much more vital.

For these causes, it’s good to preserve hydration.

Do not resort to ingesting soda or juice. It is simply going to boost your blood sugar stage. Follow water and food regimen drinks.

20 minutes on foot

After hydrating with insulin, you may assist jump-start your blood sugar by taking gentle train for 20 minutes.

In case you have ketones, train isn’t beneficial as hyperglycemic ranges with ketones trigger dehydration. Train can worsen. This might result in even increased blood sugar ranges.

In case your blood sugar ranges do not drop after just a few hours, name your physician.

In case you have tried the entire above methods however nonetheless have not dropped after just a few hours, name your physician (particularly in the event you’re delicate, reasonable, or excessive ketones or diseases).

Your physician can advise on extra methods to make use of. They could even advocate going to the hospital for intravenous fluid and insulin to stop dehydration and the event of DKA.

What’s the quickest technique to defeat excessive blood sugar?

In case you are insulin-dependent, the quickest technique to decrease your blood sugar ranges is to take insulin.

For those who’re not insulin habit, sustaining hydration and train with water is the quickest technique to shortly defeat blood sugar ranges.

What if I can not decrease my blood sugar stage?

In case you are unable to decrease your blood sugar ranges, name your physician or 911 and search emergency medical consideration instantly. Hyperglycemia ranges are broken and may shortly become DKA.

In case your blood sugar ranges are excessive for a number of hours and you’ve got delicate, reasonable, or excessive ketones, you need to search medical consideration.

The indicators and signs to notice are:

  • nausea
  • vomiting
  • confusion
  • shortness of breath
  • Physique ache
  • Fruity scented breath
  • Abdomen ache

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