Abnormal results: (1) If the TT of the tested plasma is prolonged and can be corrected by toluidine blue, and the time of acutobin enzyme is normal, it indicates that there is heparin or heparin like substance in the tested plasma.(2) If FDP and abnormal fibrinogen exist in the tested plasma, TT prolongation cannot be corrected by toluidine blue, and the enzyme time of Agkistrodon acutus is also prolonged.People to be checked: people with anemia, easy bleeding and other symptoms.
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Before examination: (1) Don't eat too greasy and high protein food the day before blood drawing, and avoid heavy drinking.The alcohol content in the blood will directly affect the test results.(2) After 8:00 p.m. on the day before the physical examination, you should start fasting for 12 hours to avoid affecting the test results.(3) When drawing blood, you should relax and avoid the contraction of blood vessels caused by fear, which will increase the difficulty of blood collection.After examination: (1) After blood drawing, local pressing shall be carried out at the pinhole for 3-5 minutes to stop bleeding.Note: Do not rub to avoid subcutaneous hematoma.(2) The pressing time shall be sufficient.The clotting time varies from person to person. Some people need a slightly longer time to clot.Therefore, when the skin surface seems not bleeding, immediately stop pressing, which may cause blood to seep into the skin and cause bruising due to incomplete hemostasis.Therefore, the bleeding can be completely stopped only by pressing for a longer time.If there is bleeding tendency, the pressing time should be prolonged.(3) In case of needle fainting symptoms such as dizziness, dizziness, fatigue, etc. after blood drawing, immediately lie down and drink a small amount of sugared water, and then conduct physical examination after the symptoms are relieved.(4) If local congestion occurs, wet compress with warm towel 24 hours later to promote absorption.
Bleeding in the front of nasal cavity, accompanied by bleeding of skin membrane and mucosa, fever accompanied by bleeding, bloody or brown serous fluid spilled from nipple, repeated epistaxis
