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Hyperglycaemic, hyperosmolar, non-ketotic (HHNK) syndrome
Hyperglycaemic, hyperosmolar non-ketotic (HHNK) syndrome is an uncommon complication of untreated diabetes
mellitus. It is an emergency and the prognosis for recovery is poor.
HHNK syndrome is characterized by extremely high blood glucose levels. The brain may be affected
resulting in the diabetic dog lapsing into a coma.
Diagnosis
Before HHNK syndrome develops, typical clinical signs of diabetes mellitus are seen. The diabetic dog then
becomes progressively weaker, stops eating, and lethargic and drinks less. The dog becomes severely
dehydrated,
depressed and eventually lapses into a coma.
Treatment
Your veterinary surgeon will administer intravenous
fluids and attempt to lower the blood glucose levels.
Prognosis
The prognosis for full recovery is extremely poor. Thankfully, this condition is very rare.