Can nighttime urine test for pregnancy?

Many people choose to use the first urine in the morning to test whether they are pregnant or not. This is because after a night of settling, the body has not absorbed more water or any food, so the urine at this time is the purest. The test can be faster and more direct to check whether there is pregnancy or not. At the same time, the test can also be more accurate to avoid misdiagnosis.

Test Principle

This test is detected by early pregnancy test strips. When the male's sperm combines with the female's egg to form a fertilized egg which is implanted in the uterus, a new hormone is produced in the female's body, medically called human chorionic gonadotropin (hCG). Its physiological function is to maintain pregnancy. This hormone can be detected in urine through early pregnancy test strips 7 to 10 days after conception. This is the working principle of urine pregnancy test.

91;Project Name93;Urine Pregnancy Test

91;Alias ​​93;Pregnancy test

91;English abbreviation 93;HCG

91;reference value 93;negative

Clinical significance

1. A positive reaction will appear after 35 to 40 days of normal pregnancy, and the positive level will be strongest between 60 and 90 days of pregnancy, with a positive rate of over 98%. It may decrease or be negative after 120 days.

2. In addition to normal pregnancy, ectopic pregnancy, incomplete abortion, choriocarcinoma, malignant hydatidiform mole, teratoma, etc. may also show positive results.

91;Requirement 93;Urine test results can be used as a reference, and HCG levels in the blood should be tested when necessary.

Precautions

For urine pregnancy tests, be sure to use morning urine because morning urine is concentrated and has higher hormone levels. In order to increase the positive rate of the test, you should try to reduce your water intake the night before. It is best to get a container from the hospital laboratory in advance, because it contains preservatives and the urine is not easy to deteriorate. If conditions permit, any wide-mouth bottle can be used, but it needs to be washed and boiled for sterilization or rinsed with boiling water. After collecting about 10 ml of morning urine, send it to the hospital for testing immediately. If the time is delayed too long, it may affect the accuracy of the test. This should be paid more attention to in the summer. Now this experiment can be done at home. You can go to the drugstore to buy test strips. If you have any questions, you can ask your doctor or someone in the know. Make sure you are capable of doing it well (you can do it several times), and then do it at home.