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Routine Pregnancy Blood Tests & Screenings

routine pregnancy blood tests

If you’re pregnant, it’s important to know which routine blood tests and screenings are recommended by healthcare professionals. This helps ensure a healthy pregnancy for both the mother and the baby. In this blog post, we will discuss the most common routine pregnancy blood tests and screenings that are performed before your baby arrives.

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routine pregnancy blood tests

Routine Tests Done During Pregnancy

Pregnant women have to endure a lot of tests. There are the blood tests, the ultrasounds, and the ever-popular urine test. But what are all these tests for? And why do pregnant women have to go through them?

The purpose of routine tests during pregnancy is to check for any potential risk factors. These risk factors can include things like anemia, diabetes, and high blood pressure. By checking for these risk factors, doctors can help pregnant women stay healthy and avoid complications.

Blood tests are one of the most common types of tests pregnant women have to go through. These blood tests can help doctors check for things like anemia and diabetes. In addition, several blood tests are often combined into one, which can save pregnant women time and money.

Ultrasounds are another common type of test pregnant women have to go through. These ultrasounds can help doctors check on the development of the baby and make sure everything is progressing normally. Ultrasounds can also help detect any potential problems with the baby, such as congenital abnormalities.

Finally, urine tests are also a common type of test pregnant women have to go through. These urine tests can help doctors check for things like bacteria or infection. In addition, urine tests can also help doctors check for things like protein or sugar in the urine, which can be a sign of diabetes.

Now let’s take a deep dive into what to expect each trimester and answer your questions about some of the most common tests done during pregnancy.

First Trimester Screening

If you’re pregnant, you may be wondering what tests you’ll need to undergo during your first trimester. Here’s a rundown of some of the most common screening tests that are performed during early pregnancy.

One of the first tests you’ll likely have is a blood group test. This is important because it will help your doctor determine if you’re Rh-negative or Rh-positive. If you’re Rh-negative, you may need to take special precautions to prevent complications during pregnancy.

Next, you’ll probably have a screening test for certain chromosomal abnormalities. This test can be done via blood test or ultrasound, and it’s used to look for conditions like Down syndrome.

You’ll also likely have an ultrasound at some point during your first trimester. This helps your doctor get a better view of your developing baby and make sure everything is progressing normally.

So there you have it – just a few of the routine tests that are often done during the first trimester of pregnancy. Of course, every pregnancy is different, so be sure to talk to your doctor about which tests are right for you.

Second Trimester Prenatal Screening

There’s no need to worry if you’re pregnant and wondering what sorts of tests you’ll be subjected to during your second trimester. While it may feel like you’re being poked and prodded at every turn, these routine tests are important for monitoring the health of both you and your baby. From ultrasounds to blood tests, here’s a rundown of what to expect:


Ultrasounds are typically done around the 20-week mark in order to check on the development of the baby and make sure everything is progressing as it should be.

A Glucose Screening Test

You will be asked to drink a sugary solution and then have your blood drawn an hour later. This test is done to screen for gestational diabetes, which can develop during pregnancy.

-Blood Tests

Labs are also common in the second trimester. These help to screen for conditions such as anemia and gestational diabetes.

-Urine Tests

Your practitioner will also likely check your urine for protein and other potential red flags.

-And last but not least, you can expect to have your belly measured at each visit – just to make sure baby is growing at a healthy rate. So don’t be alarmed if you find yourself in the stirrups more often than usual during your second trimester – it’s just a normal part of pregnancy!

baby ultrasound picture

Third Trimester Screening Tests

As any expectant parent knows, the third trimester is a time of anticipation and excitement. But it’s also a time for routine tests and check-ups. Here’s a quick rundown of some of the tests that you can expect during the third trimester:


This imaging test uses sound waves to create a picture of your baby. It can be used to check for things like the position of the placenta and the baby’s size and development.

Group B Strep Test:

This is a screening test for a type of bacteria that can cause serious illness in newborns. If you’re found to be positive for group B strep, you’ll be treated with antibiotics during labor to help protect your baby.

Non-Stress Test:

This test monitors your baby’s heart rate in response to movement. It’s used to check how well your baby will tolerate labor.

A Biophysical Profile:

This is an ultrasound and non-stress test done together to check on the baby’s well-being. It is usually done after 37 weeks of pregnancy.

– Blood tests:

These are used to check things like your blood type and iron level, as well as to screen for conditions like gestational diabetes.

So if you’re pregnant, be sure to ask your doctor about which routine tests you should expect during your third trimester.

Let’s look at some of these procedures and tests in more detail.

pregnant woman holding ultrasound picture

Genetic Testing 10 Weeks

One of the big decisions a woman has to make when she becomes pregnant is whether or not to have genetic testing done. For some women, it’s an easy decision- their family history suggests there may be a problem, so they want to know as soon as possible. For others, it’s not so clear-cut. After all, the vast majority of pregnancies result in normal fetal growth and development, without any genetic disorders. So why undergo the inconvenience and expense of a blood test?

The answer, simply put, is that knowledge is power. If a woman knows that her fetus has a genetic disorder, she can make informed decisions about her pregnancy and delivery. She may choose to terminate the pregnancy or prepare for a high-risk delivery. She may also opt to receive prenatal care from a specialist who is familiar with the disorder. In short, although it’s impossible to predict the future, having accurate information can help a woman feel more in control of her pregnancy- no matter what the outcome may be.

Group B Strep Culture

Before a woman gives birth, she will likely undergo a group b strep test. This test is important because it can help to prevent group b strep infection in newborns.

Group b strep is a type of bacteria that is found in the intestines, rectum, and vagina. It is usually harmless in adults, but it can cause serious problems for newborns, including pneumonia and meningitis.

The good news is that group b strep can be easily treated with antibiotics. However, the best way to prevent group b strep infection in newborns is to avoid exposure to the bacteria in the first place. That’s where the group b strep test comes in.

By testing for the presence of group b strep bacteria before delivery, doctors can ensure that women who are at risk for passing the bacteria to their babies receive antibiotics during labor. As a result, the chances of a newborn developing a group b strep infection are significantly reduced.

Chorionic Villus Sampling

Chorionic villus sampling (CVS) is a prenatal test used to detect chromosomal abnormalities in a developing fetus. The test is usually performed during the first trimester of pregnancy and involves inserting a long, thin needle into the mother’s uterus. This needle then collects a small sample of chorionic villi, which are tiny finger-like projections that make up the placenta.

The sample is then sent to a laboratory for analysis. CVS is considered to be a very accurate test and can detect a wide range of chromosomal abnormalities, including Down syndrome and Edwards syndrome. However, it should be noted that CVS is not 100% accurate and that it carries a small risk of miscarriage.

Overall, though, CVS is a safe and effective way to detect serious chromosomal abnormalities in a developing fetus.

ultrasound pictures


Amniocentesis is a medical procedure that is used to diagnose chromosomal abnormalities as well as other problems with the baby before it is born.

It is usually performed during the second trimester of pregnancy, between the 15th and 20th weeks. Amniocentesis involves using a needle to insert a small amount of amniotic fluid into a vial. The fluid contains cells that can be analyzed for chromosomal abnormalities.

Amniocentesis is considered to be a very safe procedure, but there is a small risk of complications, such as infection or miscarriage. In most cases, amniocentesis provides accurate information about the baby’s health and helps parents make informed decisions about their pregnancy.

Glucose Tolerance Test

For pregnant women, the Glucose Tolerance Test (GTT) is done to check for gestational diabetes. This condition can occur when your body can’t make enough insulin to keep up with the demands of pregnancy. Insulin is a hormone that helps your body use glucose (sugar) for energy. If you have gestational diabetes, it means that your blood sugar levels are higher than normal and can affect both you and your baby.

The GTT involves drinking a sweet solution and then having your blood sugar levels checked an hour later. If your levels are high, it could mean that you have gestational diabetes and will need to be monitored closely during pregnancy.

Fetal Monitoring

If you’re pregnant, you may be wondering what fetal monitoring is and why it’s done. Fetal monitoring is a way for your healthcare provider to check on your baby’s heart rate and contractions during labor. There are two types of fetal monitoring: internal and external.

Internal fetal monitoring involves placing a small clip on your baby’s head. This clip is attached to a monitor that records your baby’s heart rate.

External fetal monitoring involves placing sensors on your abdomen. These sensors are connected to a monitor that records your baby’s heart rate and contractions.

Fetal monitoring is important because it helps to make sure that your baby is doing well during labor. If you have any concerns about fetal monitoring, be sure to talk to your healthcare provider.

pregnant woman at doctor's office

Fetal Ultrasound

Fetal ultrasounds during pregnancy are sort of like getting a sneak peek at the baby before they’re born. By using high-frequency sound waves, fetal ultrasounds produce detailed images of the fetus, allowing doctors to assess fetal anatomy and behavior.

Fetal ultrasounds can also be used to detect potential health problems, such as birth defects or fetal growth restriction. Ultrasound imaging is generally considered safe for both mother and child, and it’s one of the best ways to get a clear picture of the fetus during pregnancy.

So if you’re pregnant and feeling curious about your little one, ask your doctor about getting a fetal ultrasound. It just might be the best way to get peace of mind during pregnancy.

FAQs About Routine Pregnancy Blood Tests

Q- What genetic tests are done at 10 weeks?

Once you find out you’re expecting, it’s natural to want to do everything you can to ensure a healthy pregnancy. One way to do this is to undergo genetic testing. This test can be performed as early as 10 weeks into the pregnancy, and it can help to identify any potential abnormalities. Among other things, genetic tests can check for conditions like Down syndrome, cystic fibrosis, and sickle cell disease. They can also help to determine the sex of the baby. While not all parents choose to have genetic testing, it can be a valuable tool for ensuring a healthy pregnancy.

Q- How accurate is 10-week genetic testing?

Some parents-to-be undergo genetic testing to find out if their baby is at risk for certain conditions. But how accurate is this type of testing? And is it worth the money?

Here’s a quick rundown of what you need to know about 10-week genetic testing. First, it’s important to understand that this type of testing is not 100% accurate. In fact, there is always a small chance that the results could be wrong. However, this risk is generally very low – around 1-2%.

Second, 10-week genetic testing can be quite expensive. The average cost is around $2000, but it can vary depending on the type of testing and the doctor you see.

So, should you get 10-week genetic testing? Ultimately, this is a decision that you’ll need to make with your doctor. However, it’s important to weigh the risks and benefits before making a decision. If you’re concerned about a particular condition, or if you have a family history of genetic disorders, then the benefits of getting tested may outweigh the costs. On the other hand, if you’re not particularly worried about any specific condition, then the risks may not justify the expense.

Q- What blood tests are done at 28 weeks of pregnancy?

When you’re pregnant, it seems like you’re constantly getting your blood drawn. But why? What are all these tests for, and why do you need to do them? Here’s a rundown of some of the blood tests that are typically done at 28 weeks pregnant.

First, your blood will be tested for anemia. This is important because anemia can make you tired and weak, and can also lead to complications during delivery.

Next, your blood will be tested for Group B strep. This is a bacteria that can cause serious illness in newborns, so it’s important to make sure that you don’t have it.

Lastly, your blood will be tested for your Rh factor. If you’re Rh-negative and your baby is Rh-positive, you may need to receive special treatment to prevent complications.

So there you have it – a few of the many reasons why you need to get your blood drawn during pregnancy.

Q- How long does it take to get the results of these pregnancy screening blood tests?

If you’re pregnant and have had your blood taken for screening tests, you might be wondering how long it will take to get the results back. The answer, unfortunately, is that it depends. screening tests are designed to look for specific conditions that may be present in pregnancy, such as Down syndrome or spina bifida.

These tests can require different amounts of time to process, so it’s important to speak with your healthcare provider about what to expect. In some cases, results may be available within a few days. However, other tests may take several weeks to complete.

Regardless of the timeline, it’s important to remember that these tests are just one part of a larger picture. They’re meant to provide information that can help you and your healthcare team make decisions about your pregnancy and your baby’s health.

So try not to stress too much about the timeline – the most important thing is that you’re getting the care and support you need.

Q- What tests are mandatory during pregnancy?

Being pregnant is an amazing time. Your body is going through so many changes and you are growing a human! However, it can also be a confusing and overwhelming time, especially when it comes to all the tests that are recommended (or even required) during pregnancy.

While your healthcare provider will likely go over the most important tests with you, here is a quick overview of some of the more common tests that expectant mothers undergo:

-Ultrasound: This is usually one of the first tests performed during pregnancy, as it can help to confirm both the due date and the number of babies you are carrying.

-Blood tests: There are a variety of blood tests that are often done during pregnancy, including screenings for anemia and various infections.

-Pap smear: A pap smear is a screening test for cervical cancer. It is generally recommended that pregnant women have a pap smear at least once during their pregnancy.

-Glucose tolerance test: This test is usually performed between 24 and 28 weeks of pregnancy and is used to screen for gestational diabetes.

So there you have it – a few of the many tests that are often done during pregnancy. Remember, though, that not all of these tests are mandatory. Talk to your healthcare provider about which tests are right for you and your baby.

Q- Are routine blood tests covered by insurance?

Routine blood tests during pregnancy are typically covered by insurance. However, there may be some exceptions depending on your specific insurance plan. For example, some insurers may not cover the cost of certain screenings, such as genetic testing unless you’re over a certain age or high risk.

If you’re unsure about whether or not your routine blood tests are covered by insurance, the best thing to do is to contact your insurer directly. They should be able to provide you with more information about what is and isn’t covered under your plan.

In some cases, you may be responsible for a copay or coinsurance for your routine blood tests. Again, this will depend on your specific insurance plan. If you have any questions about how much you’ll be responsible for, be sure to ask your insurer before your appointment.

No matter what, it’s important to remember that routine blood tests during pregnancy are an important part of ensuring a healthy pregnancy. So even if you have to pay out-of-pocket for them, they’re definitely worth the investment.

Routine blood tests during pregnancy are an important part of ensuring a healthy pregnancy. They can help to screen for various conditions that may be present, and they can provide information that can help you and your healthcare team make decisions about your pregnancy and your baby’s health.

If you have any questions about routine blood tests during pregnancy, be sure to talk to your healthcare provider. They will be able to provide you with more information and answer any questions you may have.

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