Is there a test for pregnancy?
Is there a test for pregnancy?
Pregnancy tests - one of the most reliableWays to determine if a woman is waiting for a child. But, like any other method, it does not guarantee 100% accuracy. Pregnancy tests can give a false result if they have expired, if they are not carried out by instruction, but also in some other cases.
How does the pregnancy test work?
From the moment the egg is attached to theWomb, the woman's organism receives information about pregnancy and begins preparation for it. The work of many organs under the influence of hormones is being rebuilt, which are beginning to be developed more actively. The level of human chorionic gonadotropin, or hCG - hormone, which determines pregnancy, is constantly growing. Tests are based on the evaluation of the amount of this substance in the urine of a woman - if its level exceeds the norm for a non-pregnant woman, then the test shows a positive result, which indicates that the lady is most likely waiting for the baby. Pregnancy tests are convenient because they can be carried out at home, this does not require special equipment. They are reliable in comparison with other home methods of determining pregnancy. Tests from different manufacturers have a different sensitivity: when some can not yet determine pregnancy due to too early a period and a small amount of the hormone, others already show distinct red strips. Most tests guarantee an almost accurate result from the first day of the delay, but you need to understand that the hormone accumulates gradually, and in the urine its concentration is much lower than in the blood, therefore, the more time passes from the moment of conception, the more accurate the result will be. Doctors advise for accuracy to do the test 10 days after the delay.The pregnancy test should be done in the morning, when the concentration of various substances in urine is increased.
When is a false pregnancy test possible?
When buying a test, check its expiration date - ifIt has expired, it is impossible to hope for an exact result. The test can lie if you do not follow the instructions. Carefully read all the instructions on the package and carefully follow them. For reliability, use two or three tests of different firms. Pregnancy tests can show false-positive and false-negative results, with the second cases being much more frequent. A negative result in pregnancy is an indicator that there is still insufficient HCG in the urine so that the test can determine it. This happens if the conception occurred a few days before the estimated time of the onset of menstruation.If you drink a lot of water before the test, then the concentration of the hormone in the urine will drop, and the test can also show a negative result.Positive result in the absencepregnancy occurs very rarely and is associated with either poor-quality products or with health problems, when taking certain medications that cause an elevated level of hCG in the body. It can also be a sign of an ectopic pregnancy and a threat of miscarriage.
