double-stranded enzyme assay

An antigen prepared by streptokinase (SK) and chain enzyme (SD) extracted from a culture of hemolytic streptococcus. Those with a negative sense of SK-SD test are likely to have low cellular immune function, or the subject may not be infected with the corresponding streptococci. In addition, uremic patients often responded to the SK-SD test at a lower rate than normal. Basic Information Specialist classification: inspection classification: immune examination Applicable gender: whether men and women apply fasting: fasting Analysis results: Below normal: Normal value: no Above normal: negative: Partially no redness and swelling were negative. Positive: Those with an induration diameter > 5 mm were positive. Tips: Obey the doctor's arrangements when checking. Normal value Partially no redness and swelling were negative, and those with induration diameter >5 mm were positive. Clinical significance Those with a negative sense of SK-SD test are likely to have low cellular immune function, or the subject may not be infected with the corresponding streptococci. In addition, uremic patients often responded to the SK-SD test at a lower rate than normal. Positive results may be diseases: uremia coma, uremia, scarlet fever, erysipelas precautions First, the precautions before blood draw 1, do not eat too greasy, high-protein food the day before the blood, to avoid heavy drinking. The alcohol content in the blood directly affects the test results. 2. After 8 pm on the day before the physical examination, fasting should be done to avoid affecting the detection of indicators such as blood glucose in the second sky. 3, should relax when taking blood, to avoid the contraction of blood vessels caused by fear, increase the difficulty of blood collection. Second, should pay attention after blood draw 1. After blood is drawn, local compression is required at the pinhole for 3-5 minutes to stop bleeding. Note: Do not rub, so as not to cause subcutaneous hematoma. 2, the pressing time should be sufficient. There is a difference in clotting time for each person, and some people need a little longer to clotting. Therefore, when the surface of the skin appears to be bleeding, the compression is stopped immediately, and the blood may be infiltrated into the skin due to incomplete hemostasis. Therefore, the compression time is longer to completely stop bleeding. If there is a tendency to bleed, the compression time should be extended. 3, after the blood draw symptoms of fainting such as: dizziness, vertigo, fatigue, etc. should immediately lie down, drink a small amount of syrup, and then undergo a physical examination after the symptoms are relieved. 4. If there is localized congestion, use a warm towel after 24 hours to promote absorption. Inspection process Take SK-SD1ml and dilute with normal saline to contain SK4u and SD1u per 0.1ml. Use a 1ml syringe to extract the appropriate amount of the above solution into the forearm and inject 0.1ml into the skin to form a local white vesicle. After 48h, observe the skin reaction. A value greater than 5 mm is positive. If the reaction is negative, you can use the second intensity, that is, every 10ml containing SK40u, SD10u for retesting, sometimes a positive result. Not suitable for the crowd There is no inappropriate crowd. Adverse reactions and risks It is a safe check and is harmless to the body.