1. People who have a history of fainting and blood need to explain in advance.
People who have a history of fainting and blood, please explain in advance to facilitate special arrangements.
2, fasting blood draw before 10 o'clock in the morning, the best time for
physical examination, fasting blood collection is 6:30-9:30 in the morning, and should not exceed 10:00 at the latest. If the fasting is more than 12 hours, although it is still fasting blood, due to the influence of the physiological endocrine hormones in the body, the blood glucose and other indicators can change, which cannot reflect the usual level, thus losing the significance of the test. Therefore, the longer the fasting time, the better, and the morning physical examination should be done sooner rather than later.
3. Pay attention to a reasonable diet during the first three days of the blood test.
Do not eat too greasy, high-protein foods and avoid alcohol in the first three days of the physical examination. It is best to fast after 8 o'clock in the evening to avoid affecting the second day's abdominal blood glucose and other indicators.
4. Clothes should not be too tight.
Try to wear loose cotton clothes. Do not wear clothes with too small or tight cuffs. Avoid sleeves that do not roll up when blood is drawn or sleeves are too tight after blood draw, which may cause angiohematoma in the arm. After the blood is drawn, follow the advice of the examiner and perform scientific treatment. Once the local congestion occurs due to improper compression hemostasis method, the patient should not be too nervous and should be handled under the guidance of the doctor. Normally, the bleeding will be stopped quickly.
5. Be relaxed when drawing blood.
Be relaxed when drawing blood to avoid vasoconstriction caused by fear, increase the difficulty of blood collection, and avoid syncope caused by neurovascular reflex.
6. Hemostasis Use three fingers to press
After the blood is drawn, because the platelets have not coagulated, the blood vessel needle eye is still bleeding, pressing with three fingers can stop the bleeding, but do not knead when pressing, gently rub the bleeding site Not only cannot stop the bleeding, on the contrary, it will accelerate the bleeding, and the effect will be counterproductive. The correct way is to only press and not rub.
7, press for 3-5 minutes
should straighten the forearm after blood sampling. Normally, it takes 3-5 minutes to stop bleeding after blood sampling. Patients with older age or platelet abnormalities should be relatively long. Some people think they are all right after just pressing for more than a minute after the blood is drawn. This approach is wrong.
8. Pay attention to adverse reactions after blood draw.
If you experience dizziness, vertigo, and weakness after blood draw, take a short rest, drink a small amount of sugar water, and replenish nutrition in time after the examination.
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