Why Prenatal Blood Tests Matter
Prenatal blood tests help monitor your health and your baby's development, screening for conditions that could affect the pregnancy if untreated.
First Trimester Tests
| Test | Purpose |
|---|
| Blood type & Rh factor | Identifies blood type and Rh compatibility risk |
| CBC | Checks for anaemia and infection |
| Rubella & Varicella immunity | Confirms immunity to these infections |
| Hepatitis B & C, HIV, Syphilis | Screens for infections that can affect the baby |
| Thyroid (TSH) | Untreated thyroid issues can affect pregnancy |
| First trimester screening (PAPP-A, hCG) | Assesses risk of chromosomal conditions |
Second Trimester Tests
| Test | Purpose |
|---|
| Glucose Challenge Test | Screens for gestational diabetes (24–28 weeks) |
| Quad screen | Assesses risk of chromosomal and neural tube conditions |
| CBC (repeat) | Monitors for anaemia as pregnancy progresses |
Third Trimester Tests
| Test | Purpose |
|---|
| Group B Strep culture | Screens for bacteria that can affect the baby during delivery (35–37 weeks) |
| CBC | Final check before delivery |
| Repeat infection screening | If risk factors are present |
Important: Your prenatal testing schedule may vary based on your individual risk factors and your doctor's recommendations.