unstable hemoglobin test

The unstable hemoglobin test is to check whether there is unstable hemoglobin in the body. It can be judged by thermal denaturation test and isopropanol test. Basic Information Specialist classification: growth and development examination classification: blood examination Applicable gender: whether men and women apply fasting: fasting Tips: Pay attention to rest and keep blood on an empty stomach. Normal value Abnormal results Thermal denaturation test precipitated hemoglobin greater than 5% isopropanol test for 40 minutes after the formation of a villous precipitate, suggesting the presence of unstable star hemoglobin, will have chronic hemolytic anemia. People who need to be examined have anemia symptoms. Clinical significance Abnormal results Thermal denaturation test precipitated hemoglobin greater than 5%, isopropyl alcohol test 40 minutes after the formation of a villous precipitate, suggesting the presence of unstable star hemoglobin, will have chronic hemolytic anemia. People who need to be examined have anemia symptoms. Precautions Taboo before the test: Do not wear clothes that are too small or too tight in cuffs to avoid the sleeves being too tight when blood is drawn or the sleeves are too tight after blood drawing, causing blood vessels in the arms. Avoid strenuous exercise. Do not take oxidizing agents before testing. Requirements for examination: Do not tamper with venous blood collection. It takes a long time to check and you need to wait patiently for the result. Inspection process Vascular blood collection was used for testing. Before venous blood collection, carefully check that the needle is securely installed and that there is air and moisture in the syringe. The needle used should be sharp, smooth, ventilated, and the syringe should not leak. Firstly, the skin was disinfected from the inside to the outside and clockwise from the selected venipuncture with a 30g/L iodine swab. After the iodine was volatilized, the iodized trace was wiped out in the same way with a 75% ethanol swab. Fix the lower end of the venipuncture site with the thumb of the left hand, hold the syringe syringe with the thumb and middle finger of the right hand, and fix the needle lower seat with the index finger, so that the bevel of the needle and the scale of the syringe are upward, and the needle is inclined along the vein to make the needle and the skin obliquely penetrate the skin at an angle of 30°. Then, through the vein wall, enter the venous cavity forward at an angle of 5°. After seeing the blood return, the needle will be probed into the spot to avoid the needle slipping out when the blood is collected; but it is not possible to use a deep puncture to avoid hematoma, and immediately remove the cuff. Needle plug can only be pumped out, can not be pushed in, so as to avoid injecting air into the vein to form a gas plug, causing serious consequences. Remove the syringe needle and slowly inject the blood into the anticoagulation tube along the tube wall to prevent hemolysis and foam. A blood sample was taken and subjected to a heat denaturation test, and an isopropanol test. Not suitable for the crowd Inappropriate crowd: None. Adverse reactions and risks 1. Infection: Pay attention to aseptic operation when collecting blood, avoid contamination of water and other parts at the blood collection site to avoid local infection. 2, bleeding: after the blood is given a full compression time, especially coagulopathy, bleeding tendency, to avoid local subcutaneous oozing, bruising and swelling.

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