Hyperglycemic Hyperosmolar Nonketotic Syndrome (HHNS)
Hyperglycemic hyperosmolar nonketotic syndrome (HHNS) can occur when blood glucose levels exceed 600 mg/dl (33.3 mmol/l), but ketosis (ketone bodies in the blood) is not present. With such high blood sugars, the body becomes severely dehydrated. HHNS occurs most often in the elderly and people who are on medications that raise blood glucose levels. Impaired kidney function is also a risk factor.
HHNS is a life-threatening condition. If you experience any of the following symptoms of the syndrome, seek emergency medical care immediately:
- Excessive thirst and dehydration
- Nausea and vomiting
- Disorientation and confusion
- Sudden hypotension, or low blood pressure (as evidenced by faintness)
- Visual problems
- Extreme, unexplained fatigue
- In advanced cases, coma, seizure, and/or hemiplegia (paralysis on one side of the body)
Treatment for HHNS involves administering intravenous fluids (i.e., saline and sometimes electrolyte solutions) to restore fluid balance. Insulin therapy may also be required.
Reviewed by Francine Kaufman, MD. 4/08
As a Type A personality with a perfectionist streak, diabetes management is something that easily gets under my skin. If I can’t do something perfect, then I’d much rather just not do it at all. Which is why burnout creeps up on me super fast. A few days of pesky numbers and I am ready to throw all things diabetes out the window and watch it get hit by an 18-wheeler. So attempting to get my A1c into the lowest possible range ever has proven incredibly tasking for my perfectionist...