Schistosoma antibody

Refers to specific antibodies produced by schistosomiasis after infection in the body. The detection methods include an intradermal test, a ring egg precipitation test, and a cerebral palpebral reaction test. Intradermal test as a screening test, the positive rate of schistosomiasis infection is above 95%. The cross-reaction between paragonimiasis and schistosomiasis is 7% to 15%. Children sometimes have false positives, and normal people also have 2% to 3% false positives. Therefore, positive patients should be further examined. Positive ring egg precipitation test is an indicator of the presence of live eggs in the host, and can also be used as a basis for observation of efficacy. The positive rate of patients is 97.3%. In the enzyme-linked immunosorbent assay, normal people have 2% to 3% false positives, and the detection rate of antibodies in the serum of the eggs in the feces is more than 97%. There is no obvious cross-reaction between different species of parasites. Basic Information Specialist classification: Infectious disease examination and classification: blood examination Applicable gender: whether men and women apply fasting: fasting Analysis results: Below normal: Normal value: no Above normal: negative: Intradermal test: negative. Ring egg sedimentation test: negative. Tail film reaction test: negative. Indirect hemagglutination test: less than 1:10; negative. Enzyme-linked immunosorbent assay: P/N less than 2.1. Positive: The positive rate of schistosomiasis infection is above 95%. The cross-reaction between paragonimiasis and schistosomiasis is 7% to 15%. Children sometimes have false positives, and normal people also have 2% to 3% false positives. Therefore, positive patients should be further examined. Tips: Very few patients can develop anaphylactic shock during skin tests. If they are not rescued in time, they may cause death. Therefore, you should be prepared for rescue, such as standing adrenaline hydrochloride, hydrocortisone, central stimulants and anti-allergic drugs. Normal value The intradermal test was negative. The ring egg sedimentation test was negative. The cerebral palpebral reaction test was negative. The indirect hemagglutination test was less than 1:10; negative. The enzyme-linked immunosorbent assay has a P/N of less than 2.1. Clinical significance Intradermal test as a screening test, the positive rate of schistosomiasis infection is above 95%. The cross-reaction between paragonimiasis and schistosomiasis is 7% to 15%. Children sometimes have false positives, and normal people also have 2% to 3% false positives. Therefore, positive patients should be further examined. Positive ring egg precipitation test is an indicator of the presence of live eggs in the host, and can also be used as a basis for observation of efficacy. The positive rate of patients is 97.3%. In the enzyme-linked immunosorbent assay, normal people have 2% to 3% false positives, and the detection rate of antibodies in the serum of the eggs in the feces is more than 97%. There is no obvious cross-reaction between different species of parasites. Positive results may be diseases: visceral schistosomiasis, schistosomiasis, vulva schistosomiasis precautions Very few patients can develop anaphylactic shock during skin test, often starting within a few seconds to 5 minutes after injection, first itchy skin, numbness of the limbs, followed by shortness of breath, chest tightness, cyanosis, rapid heartbeat, fine pulse, blood pressure drop, a large number Sweating, etc., if not rescued in time, can lead to death of the patient. Therefore, you should be prepared for rescue, such as standing adrenaline hydrochloride, hydrocortisone, central stimulants and anti-allergic drugs. Inspection process Inject the schistosomiasis antigen 0.03ml into the forearm flexion side of the subject by aseptically using a tuberculin syringe. The skin can also be imprinted on the forearm with a 0.5cm-diameter seal. The injected antigen fills the entire round area and is injected. The amount is equivalent to 0.03 ml. After 15 minutes, the results were observed and the maximum diameter of the papules was measured. Any positive or greater than 0.8 cm was a positive reaction. Not suitable for the crowd There are no special taboos. Adverse reactions and risks No relevant records.