Nocturnal hypoglycemia
Nocturnal hypoglycemia refers to low blood sugar levels at night in a person with diabetes. Blood sugar levels can drop below a safe range at night if a person eats too little food after taking his or her usual nighttime insulin dose or takes more insulin than prescribed in the evening.
Signs of low blood sugar at night include:
- Restlessness, unusual noises, talking, or nightmares
- Waking up feeling tired or having a headache.
- Having damp clothing and bed linens in the morning (night sweats).
- Having a high blood sugar level in the morning.
Testing blood sugar levels about 2 a.m. to 3 a.m. for a few consecutive nights may help a person determine whether low blood sugar is causing the symptoms.
Nocturnal hypoglycemia may be prevented by decreasing the evening insulin dose or by adding more food to the bedtime snack.
| Author | Jeannette Curtis |
| Author | Caroline Rea, RN, BS, MS |
| Editor | Kathleen M. Ariss, MS |
| Editor | Susan Van Houten, RN, BSN, MBA |
| Associate Editor | Tracy Landauer |
| Associate Editor | Pat Truman |
| Primary Medical Reviewer | Patrice Burgess, MD - Family Medicine |
| Primary Medical Reviewer | Adam Husney, MD - Family Medicine |
| Primary Medical Reviewer | Kathleen Romito, MD - Family Medicine |
| Last Updated | May 25, 2007 |
WebMD Medical Reference from Healthwise
Last Updated:
May 25, 2007
This information is not intended to replace the advice of a doctor.
Healthwise disclaims any liability for the decisions you make based on this
information.
@ 1995-2007, Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.