Consultant Obstetrician
and Gynaecologist
Pregnancy is a remarkable journey, but it is also a time when careful medical attention is essential to protect both mother and baby. Antenatal care is not just about routine visits—it is about timely screening, early detection, and prevention of complications that may otherwise go unnoticed. It’s a well-known fact that patients with no antenatal care have increased morbidity and mortality.
One of the most important pillars of antenatal care is blood testing. These tests are not done arbitrarily; they provide critical information about a mother’s health. Early in pregnancy, blood tests help determine blood group and Rh status, screen for infections and thyroid abnormalities, and assess haemoglobin levels.
As pregnancy progresses, repeat tests may be necessary to monitor changes. For example, declining iron levels can indicate anaemia, while abnormal sugar levels may signal gestational diabetes. Without these tests, many conditions would remain silent until they become dangerous.
Equally important is the timing of ultrasounds. Ultrasound scans are not simply for viewing the baby—they serve very specific medical purposes at different stages. An early scan confirms the pregnancy location and estimates the due date. A mid-pregnancy scan, often around 18–22 weeks, carefully examines the baby’s anatomy to detect structural abnormalities. Later scans assess growth, amniotic fluid, and placental position. Missing or delaying these scans can mean missing vital opportunities for early intervention or planning.
Among the most common but underestimated issues in pregnancy is anaemia. Often referred to as a “silent” condition, anaemia occurs when there is a low level of haemoglobin in the blood, reducing the body’s ability to carry oxygen. Many women may feel only mild fatigue and dismiss it as a normal part of pregnancy. However, untreated anaemia can lead to serious complications, including premature delivery, low birth weight, and increased risk of bleeding during childbirth. Iron supplementation, a balanced diet, and regular blood monitoring are essential to prevent this condition from escalating.
Another condition that requires close attention is high blood pressure in pregnancy, also known as pregnancy-induced hypertension or preeclampsia.
In simple terms, this occurs when the force of blood against the blood vessel walls is consistently too high. Some women develop this condition for the first time during pregnancy. If left unchecked, it can progress to preeclampsia, a potentially life-threatening disorder affecting both mother and baby. Warning signs may include swelling, headaches, or visual disturbances, but in many cases, there are no obvious symptoms. This is why routine blood pressure and urine checks at every antenatal visit are critical—they allow for early detection and management.
Closely related to this is gestational diabetes, a form of diabetes that develops during pregnancy. It occurs when the body cannot effectively use insulin, leading to elevated blood sugar levels. Many women are surprised to learn they have it, as it often presents without symptoms. However, the risks are significant: larger-than-normal babies, difficult deliveries, increased risk of caesarean sections and a higher likelihood of developing type 2 diabetes later in life.
Screening typically takes place in the first, second and third trimesters with a glucose tolerance test.
The good news is that gestational diabetes can often be managed—and sometimes prevented—through lifestyle measures. A balanced diet rich in whole foods, regular physical activity (as advised by a doctor), and maintaining a healthy diet before and during pregnancy all play a role. In some cases, medication or insulin may be required, but early diagnosis makes management far more effective.
Ultimately, antenatal care is about vigilance and partnership between the patient and healthcare provider. Blood tests, ultrasounds, and routine monitoring are not mere formalities—they are lifesaving tools. Conditions like anaemia, hypertension, infections and gestational diabetes may develop quietly, but with proper screening, they can be identified early and managed successfully.
Every expectant mother deserves a safe pregnancy and a healthy baby. By understanding the purpose behind antenatal screening and attending regular check-ups, women can take an active role in safeguarding their health and that of their unborn child.
Dr Sherene Kalloo
MDW, MBBS, DGO, DM, FACOG
Specialist Obstetrician & Gynaecologist
