pregnancy test

After conceiving, human chorionic gonadotropin (HCG) is secreted by placental trophoblast cells, peaking at 60 to 70 days, and then gradually decreasing and maintaining until delivery. The use of human chorionic gonadotropin in the urine of pregnant women for testing, providing pregnancy basis, and helping to diagnose certain diseases, such as hydatidiform mole, choriocarcinoma, testicular teratoma. Basic Information Specialist classification: maternity check check classification: urine / kidney function test Applicable gender: whether women are fasting: not fasting Analysis results: Below normal: Normal value: no Above normal: negative: normal. Positive: Rapid latex agglutination inhibition method is mainly used for the detection of 5-6 weeks of pregnancy, more than 90% of positive hydatidiform mole, epithelial cancer, ectopic pregnancy, etc. can also be positive; stillbirth and abortion can be changed from positive to negative after 1 to 2 weeks . Double antibody sandwich enzyme immunoassay is mainly used for the detection of early pregnancy. It can be positive in early pregnancy, and other clinical significance is the same as rapid latex agglutination inhibition method. Immunogold sol spot filtration is mainly used for early pregnancy (7-8 days of conception), and other clinical significance is the same as rapid latex agglutination inhibition. Tips: Put the urine in a dry and clean container for inspection. Women with more leucorrhea may take mid-stage urine. Among them, when the double antibody sandwich enzyme immunoassay is used, if the menopause is more than 40 days, the urine should be diluted 1:5 and then measured. Normal value Fast latex agglutination inhibition method (non-pregnant women). Double antibody sandwich enzyme immunoassay negative (non-pregnant women). Immunogold sol spot filtration method negative (non-pregnant women). Clinical significance Rapid latex agglutination inhibition method is mainly used for the detection of 5-6 weeks of pregnancy, more than 90% of positive hydatidiform mole, epithelial cancer, ectopic pregnancy, etc. can also be positive; stillbirth and abortion can be changed from positive to negative after 1 to 2 weeks . Double antibody sandwich enzyme immunoassay is mainly used for the detection of early pregnancy. It can be positive in early pregnancy, and other clinical significance is the same as rapid latex agglutination inhibition method. Immunogold sol spot filtration is mainly used for early pregnancy (7-8 days of conception), and other clinical significance is the same as rapid latex agglutination inhibition. Positive results may be diseases: early pregnancy, ectopic pregnancy considerations 1. Put the urine in a dry and clean container for inspection. Women with more leucorrhea may take mid-stage urine. Among them, when the double antibody sandwich enzyme immunoassay is used, if the menopause is more than 40 days, the urine should be diluted 1:5 and then measured. 2. In the urine of patients with hydatidiform mole, choriocarcinoma and testicular teratoma, the content of human chorionic gonadotropin is significantly higher than that of normal pregnant women. The urine can be highly diluted and then subjected to rapid latex agglutination inhibition test. . Still positive, can be used as a differential diagnosis. 3, in addition to normal pregnancy, expired abortion or incomplete abortion and placenta still retain, can also make a rapid latex agglutination inhibition method is positive. After artificial abortion, no placenta remains after curettage, can be negative reaction. In twin pregnancy or gestational toxicosis, the dilution of the original urine and then the rapid latex agglutination inhibition test is still positive, but the dilution is generally not very high. 4. When the patient's urine human chorionic gonadotropin content is low, the rapid latex agglutination inhibition test shows a positive reaction, and the urine human chorionic gonadotropin can be concentrated 30 times and 60 times. The sensitivity can be improved. Mainly used for the observation of postoperative hysterectomy or choriocarcinoma, to explain the complete treatment and recurrence. Inspection process 1. The subject is given a morning urine for inspection in a disposable urine cup. 2. Take a drop of the urine to be tested and drop it onto the black-coated glass reaction plate. 3, add a drop of anti-serum, mix well with the urine, shake the slide for 2 to 3 minutes, then add a drop of latex antigen, 20 ° C, if the temperature is low, can extend the time, report the results. 4. The amount of urine, antiserum and latex should be the same. 5, the reagents used must be the same batch number, different batches of reagents can not be used interactively. 6, the reagent should be stored in the refrigerator 2 ~ 8 ° C, can not be frozen, otherwise the HCG antigen on the latex is easy to release. 7. When the results of the naked eye observation are not obvious, the results can be observed by means of a microscope. If the result is not clear, it can be reviewed several days later. Not suitable for the crowd no. Adverse reactions and risks no.