An 18–22 week pregnancy check up ultrasound is part of the routine proper care during pregnancy. Assessment is performed during this period in the pregnancy mainly because the foetus is large enough for its own body structure and development to be assessed. Moreover it offers additional details such as:
• the quantity of fetuses
• delivery due date verifiction
• the position of the placenta (the organ that supplies nutrition as well as oxygen to the foetus by means of the umbilical cord)
• how much fluid is around the foetus
• the foetus age
• the physical appearance of the cervix (the neck of the uterus as well as part of the birth canal).
Ultrasound utilizes high frequency soundwaves to see and document imagery or pics on an ultrasound display screen in ‘real time’. This makes it ideal for imaging the moving foetus.
The reason why would my doctor suggest me to get this process?
You can be referred for ultrasound screening as a part of a routine check-up at this stage in ones pregnancy. This is often utilized to see that the foetus is growing normally, including the foetus limbs, its heart and brain as well as internal organs. It will also help doctors identify some abnormalities earlier than would be otherwise feasible.
Can I have my ultrsound earlier or later rather than 18–22 weeks?
The ultrasound can be carried out before or after this time, but it is recommended to get the scan from 18-22 weeks onwards and even ideally before 22 weeks, as this is the best time to see almost all the structures clearly.
For more information about your 22 week ultrasound go to Wikipedia.