Urine human chorionic gonadotropin (HCG)

Urine pregnancy tests use laboratory methods to detect levels of human chorionic gonadotropin (HCG) in women's urine. Clinically used for the diagnosis of early pregnancy, can be used to assist in the diagnosis of ectopic pregnancy, estimated threatened abortion and prognosis, and can assist in the diagnosis and follow-up observation of certain malignant tumors and women after conception. Basic Information Specialist classification: gynecological examination classification: urine / kidney function test Applicable gender: whether women are fasting: fasting Analysis results: Below normal: Normal value: no Above normal: negative: 1. Normal person. 2. Complete abortion or stillbirth. 3. After pregnancy, HCG is below 2500U / L, and gradually decline, there is the possibility of miscarriage or stillbirth, when it is reduced to 600U / L, it is inevitable abortion, no need for miscarriage treatment. 4. 4 days after delivery or 13 days after the flow of people. Positive: 1. Pregnancy: HCG in urine can be detected positive 10 days after conception, HCG can reach 2500U/L or more after 35-40 days of conception, and peaks in 60-70 days, reaching 100,000-200,000 U/L. 2. Ectopic pregnancy: The urine pregnancy test has a positive rate of 60%. 3. Incomplete abortion: There is still placental tissue remaining in the uterus, and HCG is qualitatively positive. 4. Some tumors such as hydatidiform mole, choriocarcinoma, male testicular teratoma. 5. Certain endocrine and metabolic diseases: such as pituitary gland, hyperthyroidism, and menopausal syndrome. 6. Some gynecological diseases: such as ovarian cysts, endometrial hyperplasia, etc. 7. After taking chlorpromazine, phenothiazine and other drugs. Tips: For urine HCG laboratory, it is best to use morning urine and take middle urine. Normal value Normal human urine HCG was negative, <312U / L. (Note: The specific reference value depends on each laboratory.) Clinical significance Urine HCG concentration > 2500 U / L is pregnancy positive, seen in: 1. Pregnancy: HCG in urine can be detected positive 10 days after conception, HCG can reach 2500U/L or more after 35-40 days of conception, and peaks in 60-70 days, reaching 100,000-200,000 U/L. 2. Ectopic pregnancy: The urine pregnancy test has a positive rate of 60%. 3. Incomplete abortion: There is still placental tissue remaining in the uterus, and HCG is qualitatively positive. 4. Some tumors such as hydatidiform mole, choriocarcinoma, male testicular teratoma. 5. Certain endocrine and metabolic diseases: such as pituitary gland, hyperthyroidism, and menopausal syndrome. 6. Some gynecological diseases: such as ovarian cysts, endometrial hyperplasia, etc. 7. After taking chlorpromazine, phenothiazine and other drugs. Urine HCG negative, can be seen in: 1. Normal person. 2. Complete abortion or stillbirth. 3. After pregnancy, HCG is below 2500U / L, and gradually decline, there is the possibility of miscarriage or stillbirth, when it is reduced to 600U / L, it is inevitable abortion, no need for miscarriage treatment. 4. 4 days after delivery or 13 days after the flow of people. People who need to be examined: women who are menopausal or suspected of being pregnant. Positive results may be diseases: part of placenta residue, early pregnancy, ectopic pregnancy, early pregnancy reaction Inspection notes: 1 to collect the urine discharged for the first time in the morning (its HCG concentration is higher), and must be collected with a clean container with no other traces; 2 Do not drink water or drink before collecting urine, so as not to dilute the urine; 3 If the test cannot be done immediately, the urine sample should be kept in the refrigerator, but not more than 12 hours. Inspection process Inspection method: Collect the urine discharged for the first time in the morning (its HCG concentration is high), and must be collected and checked by a doctor with a clean, no trace. Take about 10 ml of urine and send it to the designated inspection window of the hospital. Not suitable for the crowd Generally no taboos. Adverse reactions and risks No.