Why is my blood sugar still high when I'm on insulin?

Insulin is the main drug for the treatment of diabetes. Correct understanding and use of insulin can better control blood sugar and improve the quality of life.

Insulin injection is determined according to blood sugar. When blood sugar is lower than 4.4mmol/L, you should eat a meal immediately after insulin injection, or inject insulin after meal. If you choose not to inject insulin, it will lead to an increase in blood sugar before the next meal, which directly affects the effect of insulin on blood sugar control.

Insulin injection time:

Short-acting insulin - injected 15 minutes before meals

Intermediate-acting insulin - independent of mealtime, takes effect 2-3 hours after injection

Long-acting insulin - fixed time injection morning and evening

Premixed insulin - fixed time injection, meal time

When people are sick, such as colds, fever, trauma, etc., it will stimulate the secretion of epinephrine, cortisol, and growth hormone, and the production and decomposition of liver glycogen will lead to increased blood sugar.

If you stop injecting insulin without authorization, it will lead to a spike in blood sugar and even ketoacidosis. Therefore, diabetic patients should adjust the dosage of insulin under the guidance of a doctor during the period of illness, and must not stop injecting insulin without authorization.

Too high or too low temperature can affect the therapeutic effect of insulin.

Unopened insulin - refrigerated storage at 2°C-~8°C. Remember not to freeze storage, it will destroy the pharmaceutical activity of insulin.

Unpacked Insulin - Protect from sunlight and store at room temperature. Remember to use it within 4 weeks.

If you want to adjust the insulin dose, you must understand a series of professional issues such as various insulin action targets, onset time, peak drug efficacy, drug efficacy duration, blood sugar control target value, etc., without professional medical knowledge and medication experience The accumulation of which is difficult to master the skills.

Some elderly diabetic patients adjust their insulin doses on their own based on their own experience in using insulin for many years and their one-sided knowledge of safe medication.

Therefore, in the event of abnormal blood sugar, it is necessary to follow the doctor's advice and adjust the insulin dose according to the doctor's professional advice.

The dosage of insulin is not fixed, it is adjusted according to the medical condition.

After a period of insulin treatment, the blood sugar level is basically stable, and a fixed injection volume can be maintained.

After the function of pancreatic islet B cells is gradually improved and recovered, the insulin dosage can be gradually reduced according to the blood sugar situation until the daily required fixed amount.

The daily required fixed amount is a fixed value set according to the blood sugar level, daily diet, daily activity, and emotional stress, and can be appropriately increased or decreased. For example, if you are more active today, you can reduce insulin dosage or increase food intake to avoid hypoglycemia.