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Devices and technology

Blood ketone testing

Blood ketone testing measures ketones in a finger-prick blood sample. Rising ketones are an early warning sign of diabetic ketoacidosis (DKA), especially for people who use insulin.

Also called
ketone test, ketone meter, ketones, blood ketones, beta-ketone, urine ketones
Formerly called

What it means

NDSS guidance for people living with type 1 diabetes: below 0.6 mmol/L is normal (provided there are no symptoms) and sick day plans should be followed. From 0.6 to 1.5 mmol/L, start your sick day action plan and check glucose and ketones every 2 to 4 hours. From 1.5 to 3.0 mmol/L there is a serious risk of DKA, so contact your doctor or diabetes team straight away if levels are not falling. At 3.0 mmol/L or above, go to an emergency department or call 000.

People taking SGLT2 inhibitor medicines can develop ketoacidosis with near-normal glucose, so ketone testing when unwell matters for them too. Blood ketone strips are subsidised through the NDSS.

At PDC Health Hub
PDC Health Hub has a range of blood ketone meters available and can assist with setup and use.

Sources and clinical review

Clinically reviewed by
Jeffery Au
Last reviewed:
November 5, 2026
Next review due:
November 1, 2027

Questions about what this means for you?

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