What is the accuracy of a pregnancy test stick? What is the difference between a pregnancy test stick and a pregnancy test paper

What is a pregnancy test stick?

The pregnancy test kit is commonly known as a pregnancy test stick, pregnancy test tablet, or pregnancy test card. Testing principle: The so-called testing refers to the use of HCG in urine to check for hormones secreted by pregnant women; This hormone is present in urine and blood, and the general pregnancy test is determined by the binding of single and multiple HCG antibodies in the device to antigens in the urine.

High precision of pregnancy test rod

The accuracy of a legitimate brand pregnancy test stick is about 85% to 95%. First of all, we need to clarify some problems: ovulation is about the 14th day of the Menstrual cycle. Assuming that fertilization is successful at this time, it should take 6 or 7 days for Zygote to produce HCG at the earliest. The pregnancy test stick is judged by the CG of urine H test. And H. What CG truly begins to secrete in large quantities is that after implantation of the gestational egg, the syncytiotrophic cells begin to secrete a large amount of HCG. Pregnant egg implantation takes at least 11 days., At least 6 days, if you want to be more accurate, just wait for 11 days., At that time, it was quite accurate. You can speculate for yourself.

Method of using a pregnancy test stick

When using, tear the packaging aluminum foil bag along the gap and remove the pregnancy test rod.

Wear disposable plastic film gloves attached to the box, hold one end of the handle of the pregnancy test stick with your thumb, and tilt the end of the urine suction hole downwards. When observing the pregnancy test stick, pay attention to the downward direction, with the plum blossom pattern facing upwards.

Align the urine suction hole on the side of the pregnancy test rod to urinate, pass the urine through the suction hole, and maintain a urine reception time of 1-2 seconds (please avoid wetting the observation window! Otherwise, the pregnancy test rod will fail).

Then flip the pregnancy test rod, with the observation window facing upwards, and continue to hold the pregnancy test rod diagonally. When you see purple liquid climbing through the observation window, purple lines will appear in the observation window within 1 minute. After 1 minute, the pregnancy result can be determined, and the result of not being pregnant must be determined after 3 minutes. The result determined after 5 minutes is invalid! Urine samples are suitable for pregnancy testing at any time. If in the early stages of pregnancy, morning urination is the best option.

What is the reason why the pregnancy test rod cannot detect it?

Early testing time: The pregnancy test rod is determined by the CG of the urine H test. What truly begins to secrete a large amount of HCG is that after implantation of the gestational egg, the syncytiotrophic cells begin to secrete a large amount of HCG, which takes at least 11 days., To test pregnancy with a pregnancy test stick, it takes at least 6 days, and if the results are accurate, at least 11 days.

Ectopic pregnancy: refers to the abnormal pregnancy process of implanting pregnant eggs outside the uterine cavity. If a woman has Ectopic pregnancy, even if she is pregnant, even if she is pregnant, the level of HCG in her urine may be very low.