pregnancy test

A pregnancy check is a method of confirming whether a woman is pregnant. Commonly used pregnancy tests include sputum test, latex agglutination inhibition test, and monoclonal antibody enzyme-labeled chorionic gonadotropin test. After 7 weeks of gestation, the obstetrician can confirm the pregnancy after examination. After 6 weeks of gestation, an immunological examination with the urine of a pregnant woman can also confirm pregnancy. Because the menstruation has stopped, even if it stops before the above time, pregnancy diagnosis cannot be made. The 7 weeks and 6 weeks mentioned here refer to the calculation from the 7th day of the last menstrual date. Basic Information Specialist classification: maternity check check classification: urine / kidney function test Applicable gender: whether women are fasting: fasting Analysis results: Below normal: Normal value: no Above normal: negative: Not pregnant. Positive: pregnancy. Tips: Before the inspection: pay attention to diet, drink less water the night before, do not urinate. Normal value The latex agglutination inhibition test is positive, and this method requires a reaction only 35 to 40 days after pregnancy. The monoclonal antibody is positive for the detection of chorionic gonadotropin, and this method can be used to determine the diagnosis 10 days after fertilization, that is, before menopause. Clinical significance Abnormal results: The result of the false positive test is positive, indicating that it is pregnant, but after a period of time, the menstrual cramps, the retest results are negative; False negatives due to the short pregnancy time, the test results are negative, should be checked after a while. People who need to be examined: Women who have two consecutive menstrual periods. Precautions Before the test: pay attention to diet, drink less water the night before the test, do not urinate. During the examination: Collect urine according to the doctor's instructions, preferably morning urine. Inspection process After collecting urine, add 1 drop of test urine on a black background slide with a clean pipette, add 1 drop of antiserum, stir well with a glass rod, and make the liquid surface diameter about 2.5 cm. Slowly shake continuously for 0.5~1min. Add 1 drop of latex antigen, mix well with a glass rod, and record the time. Shake slowly for 2 min continuously and observe the results. If there is obvious uniform agglomerated particles within 2min, it is negative; if agglutination occurs in 2~5min, it is suspicious; if 5ml does not appear agglomerated particles, it is positive. Not suitable for the crowd Inappropriate crowd: No. Adverse reactions and risks No related complications or hazards.

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