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Sunday, 22 November 2009

Scans, screening tests and check-ups

Once you've discovered that you are pregnant, it's important to get health advice to help make your pregnancy as safe and comfortable as possible. Routine tests, scans and check-ups are usually carried out or organised by your midwife or doctor and will continue throughout the pregnancy.

Regular check-ups

These check-ups will probably include:

  • taking your blood pressure
  • weighing you
  • checking your urine for infections and blood sugar problems
  • checking your general well-being

Then later in pregnancy:

  • feeling your tummy (to check your baby's size and position)
  • listening to your baby's heartbeat

Blood tests

During pregnancy you will be offered a number of blood tests, which provide information that helps you deliver a healthy baby. Don't be afraid to ask questions about the tests you are offered, what they will and will not tell you and what further decisions you may have to make depending on the results. Discuss any concerns you have with your midwife or doctor and feel free to take time to consider your options.

You may have your blood group and type identified and can be tested for:

  • anaemia
  • hepatitis B
  • HIV
  • conditions such as syphilis, or sickle cell disease
  • immunity to rubella (German measles)

Screening tests

These tests are used to check for problems with your baby such as spina bifida and Down's syndrome. If you are offered a screening test, ask your midwife why you are being offered the test. All women regardless of age can be offered the tests for spina bifida and Down's syndrome, however, older mothers are at greater risk of having a baby with Down's syndrome. At age 35, the chances of having a Down’s baby are 1 in 270. At age 40, the chances are 1 in a 100.

Some tests, such as amniocenteses, carry a small risk of miscarriage so ask about potential risks before agreeing to have a test.

Ultrasound scans

An ultrasound scan involves having a hand-held scanning device rolled over your stomach. This allows images from inside your womb to be shown on a screen. These may be used to:

  • determine the size and age of your baby
  • check for physical problems in the baby or placenta
  • determine whether you are expecting more than one baby
  • check the position of the baby and placenta

You may be offered a scan at:

  • about 10 to 14 weeks
  • about 20 to 22 weeks

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