What tests should I know about?
By week 27 of pregnancy baby development, you may expect to undergo biophysical profiling and non-stress tests for the fetus.
Most of the time, the biophysical profile and non-stress tests are given to women who are considered to have high-risk pregnancies. Although, your doctor may request one as part of the routine examination of fetal development. This is the second major procedure after the second trimester’s congenital anomaly scan.
The biophysical profile score determines a list of things, namely:
- Fetal breathing movements
- Fetal tone
- Gross body movement
- The volume of amniotic fluid (too much or too little can be dangerous to you and your baby)
- Stress levels
Dr. Mark Curran, a perinatologist, outlines in his article what is normal and what is not during this procedure for your easy reference. The baby will be graded on a scale of 1 to 10 based on these factors.
The non-stress test, on the other hand, measures the baby’s health by checking his fetal heart rate acceleration in response to fetal movement. It is best if the baby is awake at this time as the medical technician will check his responses to stimuli. If the medical technician senses that the baby is falling asleep during this 30-minute to hour-long procedure, he may make noises to wake up your baby. Do not be alarmed; these are necessary to ensure that the best and most accurate laboratory test results. In addition to the aforementioned, you may also need to get another ultrasound evaluation, like with previous checkups.