typhus serology test

The clinical significance of the external Filipino reaction is an auxiliary diagnostic test for rickettsial disease, which belongs to a non-specific reaction. If the agglutination titer is greater than 40, combined with clinical manifestations, rickettsial infection can be considered. The increase is common in typhus, and the initial agglutination titer after double serum test is more than 4 times higher than the previous one. Basic Information Specialist classification: Infectious disease examination and classification: immunological examination Applicable gender: whether men and women apply fasting: fasting Tips: If you have a history of fainting blood, please explain in advance, and make special arrangements. Normal value The agglutination titer OX19 ≤ 1:80. OX2 ≤ 1:40. OXk ≤ l: 40. Clinical significance If the agglutination titer is greater than 40, combined with clinical manifestations, rickettsial infection can be considered. The increase is common in typhus, and the initial agglutination titer after double serum test is more than 4 times higher than the previous one. 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, after blood draw should pay attention to: 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 dizziness, such as: dizziness, vertigo, fatigue, etc. should immediately lie down, drink a small amount of sugar water, 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 The P. rickettsia specific DNA in the specimen is detected by DNA probe technique or PCR method. Not suitable for the crowd There are no taboos. Adverse reactions and risks There are no related complications and hazards.

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