First, we should reflect the real situation of patients at the first time. If we use different methods, the normal value is different, and the determination of the normal value is also summed up by a large number of normal people. When the body is on an empty stomach, the body is in a relatively basic metabolic state. Therefore, the patient's blood test is also blood collection, which is more reliable and can reflect the patient's real situation and provide more reliable evidence for the diagnosis of the disease.
Second, avoid blood-enriching foods with complex ingredients in food. People's intake will affect some components in the blood. Because after eating, food is chewed through the mouth, and after preliminary digestion, it will be absorbed into the body by the gastrointestinal tract, and then the blood will be transported to various tissues and organs of the body. Therefore, when people eat before blood, some food components enter the blood, which leads to the increase of some components in the blood, thus affecting the test results.
Third, the blood will become turbid after eating. After food is digested, the lactase produced by digestion will be absorbed into the blood. At this time, the blood has begun to be turbid, and the medicine calls it "fatty blood". Because the biochemical examination of blood is judged by the color change of the sample, it is difficult to observe the blood clearly, because the snow wool is turbid, especially when making blood lipids, fatty blood will affect the accuracy of the examination. So in order to ensure the accuracy of the examination, I hope everyone will take blood.
What are the items of fasting blood drawing?
Blood test is not true, not all items need to be empty, only some items need to be checked on an empty stomach, and the common items that need stomatal blood are:
1. Blood liver function test
2. Determine blood and renal function
3. Various blood chemical tests (such as blood sugar, cholesterol, blood lipids, triglycerides, serum enzymes, serum protein electrophoresis, etc.). ).
4. Immunological examination (such as antibody, antigen, rheumatism, etc. )
5. Measurement of blood variables (such as serum viscosity, platelet viscosity, plasma viscosity, etc. )
6. Blood sugar test
In addition to these blood tests, fasting is also needed, and other tests that need fasting include gastrointestinal endoscopy and abdominal ultrasound. Besides an empty stomach, there are three things to pay attention to.
Pay attention to hemostasis and hygiene.
After collection, use a sterile cotton swab to press the blood loss for 3-5 minutes, otherwise it is easy to bleed more than powder, and people with large platelets should also press it.
It is best to draw blood before 10 in the morning.
In the morning 10, the body is usually in a relatively calm and stable state. At this time, the blood test results are most sensitive to the current health status of the human body. After 10, the accuracy of blood test may be caused by fasting secretion, hormones and other reasons.
Loose clothing choices
Most of our blood collection parts are in our arms, so we must choose loose and sleeveless clothes before blood collection, which can facilitate blood collection and prevent blood diseases after blood collection.
Blood test is the most common basic item in daily physical examination, but it can reflect how many problems exist in our health and is only applicable to the preparation of blood test. They can get accurate test results and understand our health management.