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Home pregnancy analysis
Pregnancy occurs as a result of the meeting of the sperm and the egg to form the fertilized egg, which begins with successive division processes that cause the formation of the embryo in the advanced stages, and it is worth noting that part of the fertilized egg cells forms what is known as the placenta , and this placenta secretes the pregnancy hormone known scientifically as a hormone Human chorionic gonadotropin, even before implantation of the fetus in the lining of the uterus, and when the fertilized egg implants in the lining of the uterus, the amount of this hormone rises in the body, which gives a signal to prevent the occurrence of menstruation, and it is worth noting that this hormone appears in As well as in the urine, as for the percentage of it in the blood; It has been found that it doubles every two or three days in the early stages of pregnancy , and in talking about pregnancy it must be explained that there is a group ofThe tests that can be used to detect his presence, including the home pregnancy test, which depends on the principle of its work on detecting or detecting the presence of the pregnancy hormone in the urine. [1]
Health Home Pregnancy Analysis
The results of the home pregnancy analysis are considered correct if the instructions attached to it are followed correctly and accurately, and despite studies proving that the results of this analysis are accurate if it was performed before the absence of a menstrual period or the first day of its absence, researchers recommend that it be conducted after a week of absence The menstrual cycle to obtain a highly accurate result, and in fact the accuracy of this test reaches 99%, and accordingly it can be said that the results of the home examination of pregnancy are correct in the case of following the instructions for using the analysis and waiting for a week after the absence of a menstrual period before conducting it, in addition to making sure of the absence of any Factors affecting its result, such as taking certain types of drugs, it has been shown that there are a group of drugs that may affect the results of the examination, including: Promethazine, which is used to treat allergies, and some drugs used in the treatment of Parkinson's disease Parkinson's disease), and sedatives , drugs used to aid sleep, and some diuretics that are used to treat many conditions, includingHeart failure , in addition to the possibility that some home pregnancy tests may be affected by taking anticonvulsant drugs used to control epilepsy, as well as drugs to treat infertility problems.
False results can be explained as follows: [2] [3]
- False positive results: It is intended that the result of the examination indicates the existence of pregnancy despite its absence, and such cases are attributed to a group of reasons, which can be summarized as follows:
- Perform the analysis after taking pregnancy aids that contain hCG.
- Performing the analysis after losing a fertilized egg immediately after implantation in the lining of the uterus, or experiencing an early miscarriage in general.
- Suffering from an ectopic pregnancy, or having menopause , or having problems at the level of the ovaries.
- False negative results: It is intended to obtain a negative result despite the presence of pregnancy, and the percentage of these results is high compared to the false positive results, and among the reasons that may lie behind obtaining false negative results are the following:
- Conducting a home pregnancy analysis early, that is, a week before the absence of a menstrual period , as such cases may not be the hormone of the human chorionic glands detectable in the urine, and therefore it is advised to wait for a week as mentioned above, and in the event that a woman wants to detect pregnancy before One week after the absence of a menstrual period, it is recommended to have a blood test done by a professional medical care provider.
- Monitor the result before the necessary time has passed; As there is a specific time for each test during which the result can be obtained, and it is therefore advisable to wait until the time mentioned for the analysis has passed and to follow the instructions for use with caution and caution.
- Perform the test at a time when the urine is diluted, as in such cases the test may not be able to detect the presence of the hormone in the urine, and therefore it is recommended to take a urine sample early in the morning upon waking up As the urine is at this time concentrated.
How to do a home pregnancy test
There are a number of home pregnancy tests that are sold in pharmacies and drugstores in general, and any of them can be obtained without the need for a prescription, and among the advantages of home pregnancy tests: the ease of conducting them, their low prices, and the speed of obtaining their results, although each test has special instructions for its use and it is worth the woman They are followed, except that it depends on one of three methods. The first is by placing the test stick in the cup in which the urine sample was collected. The second method is by placing the test stick in the urethra during urination, and the third and last method is similar to the first but requires the use of a dropper to transfer part of the urine. Urine to another container, and after that the woman should wait for several minutes, according to what is mentioned in the instructions, and then read the result; Where the result appears either in the form of a positive or negative sign, or in the word “Pregnant” or “Not Pregnant”. [4]
References
- ↑ "Home pregnancy tests" , www.babycentre.co.uk , Retrieved September 15, 2018. Edited.
- ↑ "How accurate are home pregnancy tests?" , www.nhs.uk , Retrieved September 15, 2018. Edited.
- ↑ "Home pregnancy tests: Can you trust the results?" , www.mayoclinic.org , Retrieved September 15, 2018. Edited.
- ↑ "Pregnancy Tests" , www.webmd.com , Retrieved September 15, 2018. Edited.
