What are the essential prenatal tests?
Blood tests, ultrasounds, genetic screening: an overview of the typical prenatal care schedule, trimester by trimester.
In the first trimester, the initial prenatal visit typically includes a full blood panel (blood type, immunity to certain infections, anemia) along with a dating ultrasound, ideally done between 11 and 14 weeks, which can also offer combined screening for Down syndrome and other chromosomal conditions.
In the second trimester, the detailed 'anatomy' ultrasound, usually done around 18 to 22 weeks, looks closely at your baby's organ development. This is also when gestational diabetes screening is typically offered, usually between 24 and 28 weeks.
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In the third trimester, monitoring becomes more frequent: blood pressure and protein checks to screen for preeclampsia, checking baby's position, and a Group B strep swab, usually done between 35 and 37 weeks.
The exact schedule varies based on your health history and local practice — some additional tests (non-invasive prenatal screening, amniocentesis) may be offered depending on age, family history, or earlier screening results. Your healthcare provider will tailor this follow-up to your situation.
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This information is general and does not replace advice from your healthcare professional (doctor, midwife, nurse, pharmacist). Every situation is unique: always check with them before making a decision. In an emergency, call 911 or your local emergency services.
