The hCG test measures the amount of hCG in a woman's blood to determine if she is pregnant. Blood hCG is more sensitive and accurate than traditional urine hCG, with less error, and can be detected earlier. In order to test the accuracy of pregnancy as early as possible, general doctors recommend blood hCG pregnancy test. The blood "quantitative" test of hCG is more sensitive and accurate than the normal "qualitative" test of urine, with an accuracy of more than 99%.
When appear menstruation delay, or menstruation amount, character is not normal, must go to the hospital do blood hCG examination, B ultrasonic examination and urine detection and other corresponding examination, confirm whether is really pregnant, if really pregnant, determine is intrauterine pregnancy or ectopic pregnancy, and then do the corresponding treatment. Do not do without authorization, only with a few symptoms is pregnant. Also do not think as long as "return to menstruation", that is, did not get pregnant, sometimes abnormal pregnancy is likely to be in the period of menstruation vaginal bleeding, if mistaken for normal menstruation, will delay the diagnosis and treatment of some diseases.
After conception, an increase in hCG in the blood was detected from 9-11 days after fertilization, and increased rapidly during the first 8 weeks of gestation to maintain the pregnancy. After about 8 weeks of gestation, hCG is at a plateau and even gradually declines until it is relatively stable at about 20 weeks. Generally speaking, urine hCG detection such as early pregnancy test paper can usually be detected after one week of menopause, while blood hCG early pregnancy test can often be detected after one or two days of menopause, so as to confirm the time of pregnancy in advance, so as to make corresponding countermeasures for pregnancy earlier.