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    Asthma and Pregnancy

    Now that you’re pregnant, you may be concerned about how asthma will affect your health and the health of your baby. But asthma doesn’t have to stop you from having a healthy pregnancy. Managing your asthma can keep you and your baby healthy.

    Woman sitting at desk with healthcare provider. Healthcare provider is showing woman metered-dose inhaler.
    During your pregnancy, work with your healthcare provider to keep your asthma under good control.

    Why managing asthma is important during pregnancy

    When you’re pregnant and have an asthma flare-up, it affects both you and your baby. The baby gets oxygen from your blood to grow and develop normally. Severe asthma can cause problems getting oxygen to your baby. When asthma isn’t controlled, problems that can develop include:

    • Baby being born too early (prematurity)

    • Need to deliver by C-section

    • Baby being smaller than normal

    • High blood pressure or preeclampsia in the mother

    Work with your healthcare providers to manage your asthma

    You likely have a healthcare provider (HCP) who helps you manage your asthma. During your pregnancy, continue to see this HCP regularly. They can continue to keep track of your asthma. And medicines can be adjusted as needed. Be sure that this HCP is in contact with the HCP who is caring for your pregnancy. Also be sure both providers know what asthma medicines you take. If you don’t have an HCP taking care of your asthma, tell the provider who cares for your pregnancy.

    Prevent flare-ups

    Here are tips to prevent flare-ups:

    • Continue using asthma medicines as prescribed.  Follow your HCP’s directions about using asthma medicines. These will likely be inhaled medicines. These have little or no chance of harming you or your baby.  

    • Keep track of your lung function. Lung function tests help measure how well your lungs are working. The test results tell you and your providers if you are getting enough oxygen. You may be tested at your provider’s office or at a hospital. You may also be directed to keep track of yourself at home. This is done using a peak flow meter. Your provider will tell you when and how often you need to use the meter. 

    • Control asthma triggers. These are things that cause your airways to react and lead to an asthma attack (flare-up). Triggers can include smoke, scents, and chemicals. They also include allergies to things like pollen, pets, and dust mites. A flare-up can also be set off by exercise and changes in the weather. Having a cold or the flu can also trigger a flare-up. To prevent the flu, get a flu shot. If you’ve been getting allergy shots, you should continue to do so. But you should not get allergy shots for the first time when you’re pregnant.

    Keep track of the health of your baby

    Your HCP will keep track of your baby’s health closely during your pregnancy. If your asthma is not well controlled, this becomes even more important. So keep all your prenatal appointments. Keeping track includes:

    • Regular ultrasound tests. Ultrasound is a safe test that allows you and your HCP to see an image of your baby in the uterus. The ultrasound shows your baby’s development, including if the baby’s organs are growing normally.

    • Fetal nonstress test. This test may be done when you are around your third trimester. It checks if your baby is receiving enough oxygen by keeping track of the baby’s heart rate. Normally, a baby’s heart rate goes up when the baby moves. If the baby’s activity is low, it may mean that the baby isn’t getting enough oxygen.

    • Fetal movement counting. Your HCP may tell you to track your baby’s movements by doing fetal kick counts. This is done by counting the number of movements (kicks) that the baby makes over a certain time. Your provider will let you know how often to count. You’ll also be told when you should call them. If the baby’s movement pattern changes or decreases, more tests will likely be done to check the baby’s health.

    Know your plan for labor and delivery

    Before your due date, talk with your HCP about your labor and delivery plan. You will likely keep taking your asthma medicines during this time. These prevent a flare-up. They can also help relieve a flare-up if you have one. Your provider will tell you more about this.

    Precautions

    Call your healthcare provider right away if any of the following occur:

    • You have wheezing that doesn't go away after you take medicine.

    • Your asthma medicines stop working.

    • You cough up bloody, green, or yellow mucus (signs of a lung infection).

    • You have a temperature above 100.4°F (38°C) with shortness of breath or a cough.

    • Your baby’s movement pattern changes or decreases.

    Online Medical Reviewer: Donna Freeborn PhD CNM FNP
    Online Medical Reviewer: Heather M Trevino BSN RNC
    Online Medical Reviewer: Irina Burd MD PhD
    Date Last Reviewed: 12/1/2022
    © 2000-2024 The StayWell Company, LLC. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.
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    Southern New Mexico
    Surgery Center

    2301 Indian Wells Rd. Suite B
    Alamogordo, NM 88310
    www.snmsc.org

    Phone: 575.437.0890
    Fax: 575.437.0905
    Email: info@snmsc.org

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