Is morning urine necessary for pregnancy testing?

Pregnancy test refers to a method of testing when a woman's menstruation is delayed or her body shows signs of pregnancy. It can be tested using a pregnancy test stick. The pregnancy test stick first requires a woman's morning urine. Because the woman's body does not react as much during early pregnancy, morning urine is needed for testing. Morning urine is the time when the woman's hormones are the highest in the day, and the chance of detection during this period is relatively high.

Do I have to use morning urine for pregnancy test?

1. Try to use the first urine in the morning for testing, because the hormone level at this time is easiest to detect. If this is not possible, make sure the urine is in the bladder for at least four hours before testing.

2. Do not drink too much water to increase urine, as this will dilute hormone levels.

3. Read the instructions carefully before starting the test and follow each step accurately.

4. Some medications may affect the test results, so be sure to read the label instructions carefully.

5. In addition, if it is an ectopic pregnancy, the HCG level may be very low and therefore cannot be detected by a pregnancy test stick. To confirm the test results, be sure to see a doctor.

6. Usually, it is most accurate to use a pregnancy test stick when the menstruation is delayed for 7 to 10 days, because the pregnancy test stick mainly determines whether the woman is pregnant by detecting the HCG content in the urine of women of childbearing age. Since there are certain differences in the discharge of HCG in different women, using a pregnancy test stick for testing too early is likely to result in inaccurate test results. When the menstruation is delayed for 7 to 10 days, the concentration of HCG in women's urine is the highest, so the test results obtained are often the most accurate.

7. Under normal menstruation conditions, a general pregnancy test stick can be used on the first day of the menstruation. It can be used at any time of the day, but it will be more accurate to use it during the first urination after getting up in the morning because the HCG concentration is higher at that time.

8. In the case of irregular menstruation, using a pregnancy test stick is very unreliable. In this case, it is recommended to go to a regular hospital's gynecology department for a blood HCG or color Doppler ultrasound test.

What factors affect the accuracy of pregnancy test sticks?

The factors that affect the accuracy of pregnancy test sticks mainly include improper operation, too short a pregnancy period, taking medications that affect the results before the test, expired or damp test products, etc. These will cause inaccurate results of pregnancy test sticks.

In order to improve the accuracy of pregnancy test sticks, pay attention to the following points when using pregnancy test sticks:

1. Pay attention to the production date on the packaging box and do not use expired pregnancy test strips, because chemical agents will become ineffective over time or if stored improperly.

2. Read the instructions carefully before doing the self-test, and then follow the instructions carefully.

3. Pregnancy test sticks are generally more accurate if checked 7 days after the period is delayed. Because it is related to HCG in the body, it can only be clearly measured when HCG reaches a certain level, so it is best used 7 days after menstruation is delayed.

4. If the pregnancy has just begun, or there is a possibility of ectopic pregnancy, the HCG level in the body is generally low. The test sample needs to be left to stand for more than 3 minutes (usually only 1 minute), and it is necessary to carefully identify whether there is a weak positive, and the color band in the test area only appears faintly.

5. The best time to test pregnancy test stick is generally in the morning. The highest HCG value is generally found in the morning urine, so the result is relatively accurate. If you do the self-test at night, the accuracy will be affected to a certain extent.