Hyperglycemia, also known as high blood sugar, is common in people who have diabetes. It occurs when too much sugar (glucose) is in the blood and the body has too little insulin or if the body can’t use insulin properly to regulate blood sugar levels.
People with diabetes can experience hyperglycemia episodes frequently.
Hyperglycemia usually doesn’t cause symptoms until blood sugar levels are high – above 180 to 200 milligrams per deciliter (mg/dL), or 10 to 11.1 millimoles per liter (mmol/L).
Symptoms for hyperglycemia develop slowly over several days or weeks. The longer sugar levels stay high, the more serious symptoms can become. However, some people who’ve had type 2 diabetes for a long time may not show any symptoms despite high blood sugar levels. Early symptoms of hyperglycemia include:
- Frequent urination
- Increased thirst
- Blurred vision
- Feeling weak or unusually tired
- Headache
Recognizing early symptoms of hyperglycemia can help identify and treat it right away.
If hyperglycemia isn’t treated, it can cause toxic acids called ketones, to build up in the blood and urine. This condition is called ketoacidosis. Symptoms include:
- Fruity-smelling breath
- Dry mouth
- Abdominal pain
- Nausea and vomiting
- Shortness of breath
- Confusion or disorientation
- Loss of consciousness
- Dehydration
- Rapid heartbeat
Hyperglycemia most often results from a lack of insulin. This happens due to insulin resistance and/or issues with the pancreas, the organ that makes insulin.
However, other hormones can contribute to the development of hyperglycemia as well. Excess of the stress hormone cortisol or the growth hormone can lead to high blood sugar.
Chronic hyperglycemia over the years can damage blood vessels and tissues in your body. This can lead to a variety of complications, including:
- Retinopathy
- Nephropathy
- Neuropathy
- Gastroparesis
- Heart disease
- Stroke
Hyperglycemia is diagnosed when a healthcare provider orders blood work to screen for the condition and diagnose diabetes. These tests may include:
- Fasting glucose tests.
- Glucose tolerance tests.
- A1c test.
Injected insulin is the main way to treat hyperglycemia episodes. Everyone requires different doses. Your healthcare provider will work with you to determine which dose is best to treat and prevent high blood sugar. Dietary changes and exercise plans can also help manage your blood sugar to prevent hyperglycemia.
If you’re experiencing symptoms of hyperglycemia, you can receive treatment from an endocrinologist at Flushing Hospital Medical Center’s Ambulatory Care Center. To schedule an appointment, please call (718) 670-5486.
All content of this newsletter is intended for general information purposes only and is not intended or implied to be a substitute for professional medical advice, diagnosis or treatment. Please consult a medical professional before adopting any of the suggestions on this page. You must never disregard professional medical advice or delay seeking medical treatment based upon any content of this newsletter. PROMPTLY CONSULT YOUR PHYSICIAN OR CALL 911 IF YOU BELIEVE YOU HAVE A MEDICAL EMERGENCY.