Scientific diagnosis method of threatened abortion

Threatened abortion is very harmful to women. Scientific diagnosis of threatened abortion is very important. It can help women understand their own conditions in time and help doctors make appropriate treatment plans based on the examination results. Women with threatened abortion must go to a regular hospital for examination and treatment to ensure their personal safety.

1. Urine pregnancy test or determination of β-subunit levels in the blood: Positive urine pregnancy test: 33 to 35 days after menopause, when the gestational sac can be seen by vaginal ultrasound, the subunit level in the blood is about 1800 milliunits/ml, and can reach 20,000 units/ml for a period of time. Values ​​below this generally indicate a poor prognosis.

2. Ultrasound examination: Through vaginal ultrasound examination, the gestational sac can be seen about 35 days after the last menstrual period, and the primitive heart tube pulsation of the fetus can be seen after 42 days; abdominal ultrasound examination shows the gestational sac 35 to 42 days after the last menstrual period, and the primitive heart tube pulsation of the fetus can be seen 49 days after the last menstrual period.

3. Determination of blood progesterone levels: Recent studies have found that the determination of blood progesterone levels is more accurate in judging the prognosis of pregnancy. If the blood progesterone level is lower than 5 ng/ml, whether it is an intrauterine pregnancy or an ectopic pregnancy, it generally indicates that the pregnancy has died. If the blood progesterone level is higher than 25 ng/ml, it indicates that the intrauterine pregnancy is alive; if it is between 5 and 25 ng/ml, reexamination and follow-up are required.

As the phenomenon of older mothers increases, the chance of threatened abortion is also getting higher and higher. There is no clear functional relationship between the two, but it can be seen in clinical cases that there is indeed a correlation. At present, what should be done is to do prenatal examinations during pregnancy. This is a respect for life and a responsibility for life.