What Tests Should Be Done During the 4th to 5th Month of Pregnancy?

Pregnancy Screening and Regular Check-ups

During the 4th to 5th month of pregnancy, a blood test for Down's syndrome screening is typically conducted on an empty stomach, with consideration given to the timing and content of previous examinations. For instance, some women may require a follow-up of thyroid hormones, blood routine tests, blood pressure monitoring, weight changes, and fetal heart conditions. If systematic prenatal check-ups have not been conducted previously, a B-ultrasound examination may also be necessary, along with checks on liver and kidney function, blood glucose, blood lipids, infectious disease screening, electrocardiogram, and urinalysis, among others.

Pregnant women who undergo regular prenatal check-ups will be guided by their doctors on various precautions and informed of the timing of the next examination, including whether fasting is required. By the 4th to 5th month of pregnancy, a perinatal healthcare booklet is usually established, outlining the intervals between examinations, precautions, and often the specific examination content.

Additionally, an appointment should be made for a 3D or 4D ultrasound scan between the 20th and 24th week of pregnancy for a comprehensive fetal anomaly scan. After the 24th week, a glucose tolerance test should be performed on an empty stomach. During each prenatal visit, doctors typically monitor weight, blood pressure, and fundal height. From the 28th week of pregnancy onwards, special attention should be paid to fetal movements, necessitating shorter intervals between examinations, with at least one check-up every two weeks.