DM Hypoglycaemia W1 Flashcards
What is the object of insulin therapy?
Eliminate symptoms of hyperglycaemia without producing hypoglycaemia
Problems with insulin
Activation of the immune response as insulin can provoke an immune response in the body with the production of antibodies which potentially in long-term can activate the insulin
The injection site as it can cause lipohypertrophy and bruising/redness/scarring and this can be caused by technique
Weight gain is also a problem because insulin itself causes the patient to be hungry
Biggest risk is hypoglycaemia
What is hypoglycaemia?
A blood glucose level of less than 4mmol/L
(four is the floor)
Signs and symptoms when you get to less than 3mol/L
Mild
Mild: palpitations, tremor, hunger and sweating, numbness and tingling, blurred vision, fatigue, headache - these are adrenergically mediated and if on a beta blocker then they may not experience these symptoms so do not rely on these symptoms to guess if someone is having a hypo
Signs and symptoms when you get to less than 3mol/L
Moderate
Moderate: behaviour changes i.e. restlessness, agitation, irritability, drowsiness (but rousable), confusion, slurred speech - if untreated can lead to severe
Signs and symptoms when you get to less than 3mol/L
Severe
Severe: very agitated/aggressive, unconscious, unresponsive, seizure, coma
Treatment of mild
15 to 20 g rapid absorbed sugar
The person is aware and can treat themselves
For example, 2 teaspoons of sugar
Treatment of moderate
1.5 to 2 tubes of glucose gel
Aroused but need help
Treatment of severe
IM glucagon or IV glucose
Lack of consciousness
Causes of hypo
- Incorrect dosing of insulin at night time
- Delayed/missed meals
- Alcohol (inhibits glucogenesis)
- More exercise than usual
- Heat/stress