Diabetic ketoacidosis (DKA) is a serious condition that can happen in people with diabetes. It's where a lack of insulin causes harmful substances called ketones to build up in the blood. It can be life threatening and needs urgent treatment in hospital.

Symptoms of diabetic ketoacidosis (DKA) include:

• feeling thirsty
• needing to pee more often
• stomach pain, feeling sick or being sick
• diarrhoea
• breathing more deeply than usual
• breath that smells fruity (like pear drop sweets or nail polish remover)
• feeling tired, sleepy or confused
• blurred vision

The symptoms usually develop over 24 hours, but it can be faster.

DKA usually affects people with type 1 diabetes, but it can also happen in people with type 2 diabetes who need insulin.

It can happen when people first develop type 1 diabetes and have not yet been diagnosed, particularly children.

Checking your blood glucose and ketones

If you have diabetes and have any of the symptoms of DKA, check your blood glucose. If it's high, test for ketones if you can.

If you use a meter to test for ketones in your blood:

• under 0.6mmol/L is normal
• 0.6 to 1.5mmol/L is slightly high – test again in 2 hours
• 1.6 to 3mmol/L means you're at risk of DKA and should speak to your diabetes care team for advice
• over 3mmol/L is high and means you may have DKA and should call 999 or go to A&E

If you use strips to test for ketones in your pee, over 2+ is high. This means you may have DKA and should call 999 or go to A&E.

Important

These ketone levels are a guide. Normal blood ketone levels can be different for different people. Your diabetes care team will advise you on what levels to look for.

Call 999 or go to A&E if:

Call your diabetes care team now or get help from NHS 111 if:

If you have diabetic ketoacidosis (DKA) you'll need to be admitted to hospital for urgent treatment.

You'll be given insulin, fluids and nutrients through a drip into your vein.

You'll be monitored for complications, as DKA can sometimes affect your brain, heart or lungs.

Once your ketones are at a safe level and you can eat and drink normally you'll be able to go home.

The doctors will talk to you about what caused DKA and give you advice on how to reduce the risk of it happening again.

If you have diabetes, it's important to be aware of the symptoms of diabetic ketoacidosis (DKA) and how to reduce the risk of getting it.

Causes of DKA can include being unwell, having an injury or surgery, having your period, or not taking enough insulin.

Testing for ketones will help you know when you need to take action, such as increasing your insulin dose.

You can get kit to test for ketones free from the NHS, or buy it from a pharmacy. You can use:

• a ketone meter to test your blood
• some types of blood glucose monitor that also test for ketones
• strips to test your pee