What Is Factor IX Deficiency?

The test result was negative.

Plasma coagulation factor IX activity measurement is to measure the activity of plasma coagulation factor IX in humans, that is, anti-hemophilic globulin B (AHG B), which can diagnose hereditary hemophilia type B.

Name: Determination of plasma factor IX activity

category: blood

Normal value of plasma factor IX activity

The test result was negative.

Clinical significance of plasma coagulation factor IX activity

Abnormal result: The test result is positive, indicating that plasma coagulation factor IX is missing and may have hereditary type B hemophilia. This type of hemophilia is relatively rare compared to type A, affecting about 15,000 people's health, and the disease is mainly male. People to check: People with hemophilia.

Precautions for determination of plasma factor IX activity

Inappropriate: None. Contraindications before the test: Do not eat too greasy, high-protein food the day before the test, and avoid drinking a lot. The alcohol content in the blood directly affects the test results. After 8 pm the day before the physical examination, you should fast. Requirement during examination: Use venous blood examination. Relax when drawing blood to avoid contraction of blood vessels caused by fear and increase difficulty in collecting blood.

Plasma factor IX activity measurement process

Detection was performed using venous blood. Before venous blood collection, carefully check whether the needle is firmly installed and whether there is air and moisture in the syringe. The needle used should be sharp, smooth and ventilated, and the syringe should not leak. First use a 30g / L iodine tincture cotton swab to disinfect the skin clockwise from the inside to the outside of the selected venipuncture point. After the iodine tincture evaporates, use a 75% ethanol cotton swab to wipe the iodine traces in the same way. Use the left thumb to fix the lower end of the venipuncture point, the right thumb and middle finger to hold the syringe barrel, and the index finger to fix the lower seat of the needle so that the bevel of the needle and the scale of the syringe are upward. , Then penetrate the vein wall forward into the vein cavity at a 5 ° angle. After seeing the blood return, probe the needle a little bit in order to prevent the needle from slipping out during blood collection; however, do not use deep puncture to avoid hematoma, and at the same time remove the pressure vein band. The needle plug can only be withdrawn externally, and it cannot be pushed in, so as to prevent the injection of air into the vein to form an air plug, which will cause serious consequences. Remove the syringe needle and slowly inject blood into the anticoagulation tube along the wall of the test tube to prevent hemolysis and foam generation.