Dextrose 10% IV

How it works

It supplies glucose directly to the circulation, rapidly raising blood glucose concentration and providing a metabolic substrate for the brain and other tissues.

Prescribing in practice

• Confirm hypoglycaemia and re-check capillary or laboratory glucose after administration, as recurrence is common and ongoing infusion or feeding may be required.
• It is hyperosmolar relative to plasma and can cause thrombophlebitis and extravasation injury, so secure venous access and inspect the cannula site.
• In suspected alcohol dependence or malnutrition, give thiamine to reduce the risk of precipitating Wernicke's encephalopathy.

Monitoring

Monitor blood glucose closely after administration, together with the infusion site, fluid balance and electrolytes during prolonged use.

Counselling the patient

• We are giving you sugar directly into a vein to correct a low blood sugar.
• Tell us if you feel pain or burning at the drip site.
• Once you are stable we will look at why the blood sugar fell and how to prevent it.

Evidence & guidelines

Intravenous glucose for hypoglycaemia is standard practice supported by UK resuscitation and diabetes emergency guidance.