Does low blood sugar cause confusion?

Written by Luo Juan
Endocrinology
Updated on October 21, 2024
00:00
00:00

When hypoglycemia occurs, it is possible to experience confusion. This is because, under normal conditions, the glucose level in our brain tissue is only about 25% of that in our blood. After hypoglycemia occurs, the glucose concentration in our brain tissue will further decrease, leading to a state of sugar and oxygen deprivation in the brain. Severe cases can exhibit a range of neuropsychiatric symptoms such as behavioral changes and confusion, cognitive dysfunction, or even epileptic seizures. Some patients may also experience coma and permanent brain damage, typically seen in those with severe and prolonged hypoglycemia. Similarly, patients who repeatedly experience hypoglycemia often also suffer from brain atrophy. Therefore, confusion can occur during hypoglycemia.

Other Voices

doctor image
home-news-image
Written by Lin Xiang Dong
Endocrinology
30sec home-news-image

How is hypoglycemia treated?

The treatment for hypoglycemia is relatively simple; in most cases, it involves immediate consumption of sugar water to replenish energy, which can significantly alleviate the symptoms of hypoglycemia. If it is an occasional, single occurrence of hypoglycemia, normal status can be restored after replenishing energy. However, if hypoglycemia occurs repeatedly, it is necessary to seek timely medical treatment at a hospital to rule out some common diseases that cause hypoglycemia.

doctor image
home-news-image
Written by Lin Xiang Dong
Endocrinology
36sec home-news-image

What is hypoglycemia?

Hypoglycemia refers to a condition where the concentration of glucose in the bloodstream is too low, leading to insufficient energy supply in the body. This can excite the sympathetic nervous system or disrupt central nervous system functions, resulting in a range of clinical syndromes. Hypoglycemia is relatively common in our daily lives. Its symptoms often include palpitations, dizziness, trembling limbs, apathy, abnormal behavior, and in severe cases, even coma or sudden death. Therefore, timely diagnosis and treatment of hypoglycemia are very important.

doctor image
home-news-image
Written by Luo Juan
Endocrinology
57sec home-news-image

Does low blood sugar cause confusion?

When hypoglycemia occurs, it is possible to experience confusion. This is because, under normal conditions, the glucose level in our brain tissue is only about 25% of that in our blood. After hypoglycemia occurs, the glucose concentration in our brain tissue will further decrease, leading to a state of sugar and oxygen deprivation in the brain. Severe cases can exhibit a range of neuropsychiatric symptoms such as behavioral changes and confusion, cognitive dysfunction, or even epileptic seizures. Some patients may also experience coma and permanent brain damage, typically seen in those with severe and prolonged hypoglycemia. Similarly, patients who repeatedly experience hypoglycemia often also suffer from brain atrophy. Therefore, confusion can occur during hypoglycemia.

doctor image
home-news-image
Written by Li Hui Zhi
Endocrinology
1min 1sec home-news-image

How to Treat Hypoglycemia

If the patient is experiencing symptoms such as dizziness, palpitations, cold sweats, and feelings of hunger, but is mentally clear, it is suggested to promptly eat foods like candy or chocolate that can rapidly increase blood sugar levels. However, if the patient's hypoglycemia isn’t fully corrected and leads to unconsciousness, then it is critical to immediately call emergency services (dial 120). Upon their arrival, a micro blood sugar test should be conducted. Secondly, an injection of 50% glucose can be administered intravenously to correct the hypoglycemia. Thus, preventing hypoglycemia is very important.

doctor image
home-news-image
Written by Li Hui Zhi
Endocrinology
54sec home-news-image

How to alleviate hypoglycemia

In general, for hypoglycemia, if a diabetic's blood sugar falls below 3.9 or a non-diabetic's blood sugar falls below 2.8, it is considered hypoglycemia. In terms of treatment, if the patient is conscious and experiences symptoms such as dizziness, palpitations, cold sweat, and hunger, it is recommended to measure blood sugar immediately and then eat foods that quickly increase blood sugar levels, such as chocolate or candy. If hypoglycemia in a patient is not corrected in time, it can lead to coma. If the patient is comatose, it is advised to call emergency services immediately and administer a 50% glucose intravenous injection to correct the hypoglycemia.