At 20 weeks of pregnancy the ultrasound examination may be conducted during the second screening. With the help of this research it can be determined whether the size of the fetus corresponds to the gestational age, whether the state of the amniotic fluid and the placenta is normal. It is also possible to evaluate the internal organs of a baby and carefully examine its heart on this term.

Concerning analyzes at 20th week of pregnancy the future mother may have to pass:

– General blood count that will help to determine the development of anemia in time and to show the level of sugar,

– Urinalysis, that will inform a doctor about the work of the kidneys and the likelihood of hidden inflammation in the genitourinary system.

If a doctor has any suspicions about the state of the fetus by results of analyzes and ultrasound examination, a pregnant may be directed to biochemical analysis of blood from a vein – the triple test. Such an analysis is done to assess the level of human chorionic gonadotropin, alpha-fetoprotein and unconjugated estriol. Deviations of the obtained data may indicate to a risk of having a baby with developmental disabilities and chromosomal abnormalities.