Recognising a diabetic emergency
- Simon Francis
- Nov 15, 2024
- 2 min read
Recognising a diabetic emergency involves identifying symptoms of either low blood sugar (hypoglycemia) or high blood sugar (hyperglycemia). Here’s what to look for and how to respond:
1. Hypoglycemia (Low Blood Sugar)
This occurs when a person’s blood sugar level drops too low, typically below 4 mmol/L.
Common Symptoms:
Shaking or trembling.
Sweating.
Pale skin.
Hunger.
Confusion, difficulty concentrating, or slurred speech.
Irritability or unusual behavior (may mimic drunkenness).
Dizziness or feeling faint.
Rapid heartbeat.
Loss of consciousness or seizures (in severe cases).
What to Do:
Conscious Patient:
Give them a sugary drink (e.g., cola, fruit juice) or fast-acting sugar like glucose tablets, sweets, or a teaspoon of sugar.
Follow up with a slower-releasing carbohydrate, such as a sandwich or a piece of fruit.
Unconscious Patient:
Do not give them anything by mouth.
Place them in the recovery position and call 999 immediately.
Inform paramedics that it’s a suspected diabetic emergency.
2. Hyperglycemia (High Blood Sugar)
This occurs when blood sugar levels are too high, often above 11 mmol/L, over a prolonged period.
Common Symptoms:
Excessive thirst.
Frequent urination.
Dry mouth.
Tiredness or weakness.
Blurred vision.
Nausea or vomiting.
Fruity-smelling breath (a sign of diabetic ketoacidosis, a serious condition).
What to Do:
Encourage them to take insulin or medication if they have it and know how to manage their condition.
Ensure they stay hydrated with sugar-free fluids (e.g., water).
Seek medical advice promptly if symptoms worsen or don’t improve, especially if there are signs of diabetic ketoacidosis (e.g., fruity breath, vomiting, or confusion).
Recognising a diabetic emergency- When to Call 999
The person is unconscious or having seizures.
Symptoms persist despite treatment (e.g., continued confusion or inability to swallow sugar for hypoglycemia).
They exhibit severe signs of hyperglycemia, such as rapid breathing, confusion, or vomiting.

Comments