Common Tests And Screenings During Pregnancy
Common Tests And Screenings During Pregnancy

The Common Tests And Screenings During Pregnancy | 2024 Guide

Last Updated on November 11, 2023 by Jasmine KeLa

Unlock the secrets to a healthy pregnancy with our comprehensive guide on common tests and screenings during pregnancy. Our guide covers crucial blood tests, insightful ultrasounds, genetic screenings, and preventive measures against Group B Streptococcus. Empower yourself with knowledge for a journey of well-being and anticipation.


Pregnancy is an exciting and transformative time in a woman’s life. It is a period filled with anticipation, joy, and a range of physical and emotional changes. To ensure the health and well-being of both the mother and the baby, regular tests and screenings are a crucial part of prenatal care. These tests help detect any potential risks or complications early on, enabling healthcare providers to take appropriate measures for a healthy pregnancy and delivery. In this article, we will delve into the common tests and screenings that are typically carried out during pregnancy, their significance, and what they entail.

1. Blood Tests

Blood tests are an integral part of prenatal care as they provide valuable information about the mother’s overall health and help identify any potential risks or complications. Some of the common blood tests conducted during pregnancy include:

  • Complete Blood Count (CBC): This test measures the levels of red blood cells, white blood
    Common Tests And Screenings During Pregnancy
    Common Tests And Screenings During Pregnancy

    cells, and platelets in the blood. It helps detect conditions such as anemia or infections.

  • Blood Type and Rh Factor: Determining the mother’s blood type and Rh factor is crucial to identify any potential blood compatibility issues between the mother and the baby.
  • Glucose Screening: This test checks for gestational diabetes, a condition that affects blood sugar levels during pregnancy.
  • Sexually Transmitted Infections (STIs): Screening for STIs, such as syphilis, HIV, hepatitis B, and chlamydia, is important to prevent transmission to the baby during pregnancy or delivery.

2. Urine Tests

During prenatal visits, it is common to conduct urine tests to monitor the mother’s kidney function and identify any potential urinary tract infections. These tests also aid in identifying serious pregnancy complications like preeclampsia, which is characterized by high blood pressure and organ damage. Pregnancy-specific urine tests include:

  • Urinalysis: This test examines the urine for the presence of protein, glucose, or bacteria, which can indicate various health conditions.
  • Urine Culture: A urine culture is performed to identify any bacterial infections in the urinary tract, which can lead to complications if left untreated.

3. Ultrasound

Ultrasound is a non-invasive imaging technique that uses sound waves to create pictures of the developing fetus inside the womb. It is one of the most exciting and anticipated tests during pregnancy since it allows parents to catch a glimpse of their baby before birth. Ultrasounds are usually conducted at various stages of pregnancy in order to monitor the baby’s growth and development, determine the due date, and identify any potential abnormalities. Some common types of ultrasounds include

  • Transabdominal Ultrasound: This is the most common type of ultrasound where a transducer is moved over the abdomen to create images of the baby.
  • Transvaginal Ultrasound: In this type of ultrasound, a small transducer is inserted into the
    Common Tests And Screenings During Pregnancy
    Common Tests And Screenings During Pregnancy

    vagina to obtain clearer images, especially during early pregnancy.

  • Doppler Ultrasound: Doppler ultrasound uses sound waves to measure blood flow in the baby’s vessels, helping assess the baby’s well-being.

4. Genetic Screening

Genetic screening tests are performed to evaluate the likelihood of specific genetic disorders or birth defects in the baby. These tests are not mandatory and are generally provided to all pregnant women, regardless of their age or family background. Some of the commonly used genetic screening tests are:

  • Carrier Screening: Carrier screening tests are performed to identify if the parents carry any genetic mutations that could be passed on to the baby.
  • Non-Invasive Prenatal Testing (NIPT): NIPT is a blood test that screens for chromosomal abnormalities, such as Down syndrome, by analyzing the baby’s DNA in the mother’s blood.
  • Amniocentesis: Amniocentesis is an invasive procedure where a small amount of amniotic fluid is extracted to analyze the baby’s chromosomes and detect any genetic abnormalities.

5. Group B Streptococcus (GBS) Screening

Group B Streptococcus (GBS) is a type of bacteria that can be present in the vagina or rectum of healthy women. Although GBS usually does not cause any harm to adults, it can lead to serious infections in newborns. To prevent the transmission of GBS to the baby during delivery, pregnant women are screened for GBS between weeks 35 and 37 of pregnancy. If GBS is detected, antibiotics are given during labor to minimize the risk of infection in the baby.

6. Non-Stress Test (NST)

During the third trimester of pregnancy, doctors usually perform a non-stress test (NST) to evaluate the baby’s well-being. This test is simple and painless and measures the baby’s heart rate in response to its movements. The mother is connected to a fetal monitor that records the baby’s heart rate and any contractions. The purpose of the test is to determine if the baby is getting enough oxygen and to identify if any further monitoring or intervention is necessary.

7. Glucose Tolerance Test (GTT)

The Glucose Tolerance Test (GTT) is a diagnostic test conducted during pregnancy to detect gestational diabetes. This condition is characterized by high blood sugar levels. The test comprises of drinking a sugary solution and then having blood tests to measure blood sugar levels at specific intervals. If gestational diabetes is diagnosed, the healthcare provider may recommend dietary changes, exercise, and medication to manage blood sugar levels and reduce the risk of complications.

8. Cervical Length Measurement

In the second trimester of pregnancy, doctors perform a test called cervical length measurement to

Common Tests And Screenings During Pregnancy
Common Tests And Screenings During Pregnancy

evaluate whether there is a risk of preterm labor. This test involves using an ultrasound to measure the length of the cervix. If the cervix is shorter than normal, there may be an increased risk of preterm birth. In such cases, appropriate measures can be taken to prevent or manage preterm labor.


Tests and screenings during pregnancy are crucial in detecting potential complications early on. By doing so, healthcare providers can take timely measures to ensure a healthy pregnancy and delivery. These tests act as protectors of maternal and fetal health, providing valuable insights and reassurance throughout this remarkable phase of life.

Blood tests emerge as a cornerstone in prenatal care, offering a window into the mother’s overall health. A Complete Blood Count (CBC) unveils vital information about red and white blood cells, crucial for detecting conditions like anemia or infections. Determining the blood type and Rh factor is equally critical, guarding against potential compatibility issues. Glucose screening becomes a shield against gestational diabetes, ensuring optimal blood sugar levels.

Urine tests form another essential component, monitoring kidney function and detecting urinary tract infections. These tests act as sentinels against conditions such as preeclampsia, a serious complication characterized by high blood pressure and organ damage. Through urinalysis and urine culture, health professionals gain valuable insights into potential health conditions that might affect both the mother and the baby.

The introduction of ultrasound, a non-invasive imaging marvel, elevates the prenatal experience. Offering a glimpse into the developing baby’s world, ultrasounds become a source of excitement and anticipation. Transabdominal and transvaginal ultrasounds, along with Doppler ultrasound, not only monitor growth and development but also contribute to assessing the baby’s well-being through blood flow measurements.

Genetic screening tests add another layer of assurance, evaluating the risk of genetic disorders or birth defects. Carrier screening, Non-Invasive Prenatal Testing (NIPT), and Amniocentesis equip expectant parents with valuable information about the baby’s genetic makeup, allowing for informed decisions.

The specter of Group B Streptococcus (GBS) is addressed through timely screening between weeks 35 and 37, mitigating the risk of infections in newborns. Vigilance against GBS ensures a safer delivery environment for both the mother and the baby.

As the journey progresses into the third trimester, the non-stress test (NST) provides a simple yet powerful tool to assess the baby’s well-being. Monitoring the baby’s heart rate and movements, this test offers insights that guide healthcare providers in ensuring optimal conditions for a healthy delivery.

Gestational diabetes, a potential concern, is tackled through the Glucose Tolerance Test (GTT). This diagnostic tool, involving a sugary solution and subsequent blood tests, allows for the effective management of blood sugar levels, promoting a healthier pregnancy.

Cervical length measurement, a test performed during the second trimester, becomes a crucial indicator of the risk of preterm labor. With ultrasound examination revealing the length of the cervix, healthcare providers can implement measures to prevent or manage preterm labor, enhancing the chances of a safe delivery.

In summation, the journey of pregnancy, while filled with joy, requires meticulous attention and care. Regular prenatal care and adherence to recommended screenings, including blood tests, urine tests, ultrasounds, and genetic screenings, are the keystones of a successful and safe pregnancy. By embracing these common tests and screenings, expectant mothers embark on a path paved with informed decisions, well-being, and the promise of a joyous delivery.

FAQ Common Tests And Screenings During Pregnancy

  1. Why are blood tests essential during pregnancy? Blood tests reveal vital health indicators, detecting conditions like anemia and infections, ensuring a healthy pregnancy.
  2. What is the significance of genetic screening in pregnancy? Genetic screening assesses the risk of birth defects, offering valuable insights into the baby’s genetic makeup for informed decisions.
  3. How do urine tests contribute to prenatal care? Urine tests monitor kidney function, detect infections, and act as guardians against complications like preeclampsia during pregnancy.
  4. What role do ultrasounds play in monitoring fetal development? Ultrasounds provide non-invasive glimpses into the baby’s world, tracking growth, detecting abnormalities, and ensuring overall well-being.
  5. Why is Group B Streptococcus (GBS) screening crucial for pregnant women? GBS screening prevents infections in newborns, ensuring a safer delivery environment and safeguarding both the mother and the baby.
Mother of 2 Kids , Writes for 4babystuff blog, mother who can cook and write at same time :)