Last Modified: 4:05pm 18/03/2021

How to Recognise


A low blood sugar level triggers the release of  adrenaline, the “fight-or-flight” hormone. Adrenaline is what can cause the early symptoms of hypoglycaemia:

Early Symptoms Include:

  • hunger
  • tremor or trembling
  • sweating
  • shaking
  • a pale face
  • heart palpitations
  • rapid or irregular heart rate
  • dizziness and weakness
  • blurred vision
  • confusion

Severe hypoglycaemia may involve:

  • weakness and tiredness
  • poor concentration
  • irritability and nervousness
  • confusion
  • irrational or argumentative behaviour and personality changes
  • tingling in the mouth
  • coordination problems

More information below about hypoglycaemia to help you understand your patients’ condition.