In medical practice, there are many different tests. They are handed over so that the doctor can understand the general picture of the disease, or just to check the state of the human body. Most often, doctors prescribe blood tests, which include a general analysis, analysis of biochemistry, sugar, determination of Rh factor and blood group, and many others. For the result to be reliable, the study should be prepared in advance.
When do you need to donate blood for sugar
If the doctor gives direction to such a study, it is likely that there is a suspicion of the development of diabetes mellitus, because it is with him that the level of glucose in the body may increase. Without fail it is carried out in cases where:
- the patient complains of constant dry mouth and great thirst,
- dramatically reduced weight
- urination becomes frequent,
- the patient is quickly overworked.
In addition, this type of analysis is prescribed for people who are overweight, suffering from hypertension, and a study of this type is always carried out in early pregnancy.
From this video, you will learn how to prepare for a blood test.
Glucose in humans
Glucose is one of the most important substances by which the body is supplied with the necessary energy. However, the level of sugar has its norm. It allows you to prevent the development of the disease with a decrease or increase of this level.
A similar analysis is done for, to have maximum information about your health. And if there are deviations from the norm, then it is necessary to conduct a full examination of the patient, which will allow to understand the cause of the pathology and prescribe the necessary therapy.
In a healthy person, the level of concentration of this substance is always at about the same level. However, in some situations there may be deviations. Usually such cases include:
- adolescence in children
- during menstruation in women
- with menopause,
- during pregnancy.
At other times, small fluctuations may be allowed, but they are quite insignificant. This usually happens after a meal.
Blood for sugar: how to prepare
This type of laboratory research is carried out by taking blood from a vein or a finger, and this should always happen on an empty stomach. It is very important to know how to donate blood for sugar and how to prepare for it.
On the eve of the test should not drink beverages that contain alcohol. This also applies to beer drinks. They must be eliminated due to the fact that in the first hours of concentration in the body, these substances can increase blood sugar levels. A little later he begins to fall., because the liver begins to fight alcohol intoxication. As a result, the result can often be erroneous.
Also, before you go to donate blood, you should not eat for eight hours. It is allowed only to drink plain water. In addition, you should refrain from drinking coffee.
Before the study it is not recommended to brush your teeth with the use of toothpaste, to chew the gum, because they contain a large amount of sugars, which can distort the result.
Methods for the determination of glucose in the body
Currently there are two waysWith which you can find out the level of sugar in the body. It:
- blood sampling in the laboratory on an empty stomach,
- carrying out the test at home with the help of a special device - a glucometer.
Using the meter is quite simple. To do this, pierce a finger and apply a drop of blood on a special test strip. It will need to be inserted into the device, after which the result will be displayed on the screen. With the help of the meter you can get a fairly accurate result. But for this you need to monitor the shelf life of test strips and not to apply them in violation of the integrity of the package.
Sometimes additional studies are prescribed, for which venous blood is taken. But at the same time, the indicators are usually overestimated, because it is more dense. This must be borne in mind. Such a study should also be carried out on an empty stomach..
It should be noted that it is possible to find out the blood sugar level not only in the laboratory, but also at home with the help of a glucometer. For the accuracy of the result it is necessary to follow all the prescriptions of the doctor.
Blood sugar norm
I must say that for different categories of persons the rate of sugar may differ. Basically it differs by age. For example:
- the norm in an adult when serving on an empty stomach is 3.88−6.38 mmol / l,
- in newborn babies, this figure may vary between 2.78 and 4.44 mmol / l,
- for children older than ten years, the values of 3.33–5.55 mmol / l are characteristic.
It should be noted that in different laboratories the result may vary slightly, but an error of a few tenths is not considered a violation. Therefore, for a more reliable result, it is recommended to check the result in several laboratories.
Why blood sugar can be increased
Usually, when glucose levels are elevated in humansThis indicates that the patient has diabetes. But, in addition to this, the result may be overestimated for other reasons:
- if the necessary rules are not followed before the procedure,
- in violation of the functioning of the endocrine system,
- for epilepsy diseases,
- food and toxic poisoning,
- pancreatic diseases.
When a doctor diagnoses such a disease, it is necessary to focus on your diet. You must adhere to a special therapeutic diet and do fitness or simply increase physical activity for the possibility of losing weight. In addition, you should learn to control the level of sugar in the body. It is impossible to eat fatty foods and flour products in case of illness. There are necessary in small portions and about six times a day.. A day can consume no more than 1800 kcal.
However, sugar can not only increase, but also decrease. Why can this happen? The first reason is malnutrition. In addition, it can occur with regular consumption of alcohol-containing beverages, soda water, flour products and sweets. Low sugar levels are called hypoglycemia; some diseases cause this deviation, such as:
- diseases of the digestive system,
- disruption of the liver and blood vessels,
- nervous disorders
After receiving the results with a lower index, you should consult a doctor for consultation. It is necessary to find out the cause and conduct a survey in order to prescribe treatment if necessary.
From this video you will learn the blood sugar levels.