What to Expect

While your doctor has likely already given you instructions on how to get ready for your appointment, we’ve included common pre-test preparation to help ensure you get proper test results. If you have any questions, please consult with your doctor.

  • Amniocentesis:  2 (8oz) glasses of fluid (non-carbonated).  Finish drinking 30 minutes prior to ultrasound.

  • CVS:  2 (8oz) glasses of fluid (non-carbonated).  Finish drinking one hour prior to ultrasound.

  • 1st Trimester Screening (11-13 weeks 6 days):  2 (8oz) glasses of fluid (non-carbonated).  Finish drinking 30 minutes prior to ultrasound.  Do not urinate (full bladder required*).
  • 1st Trimester Transvaginal Ultrasound (up to 10 weeks pregnant):  No preparation required.

  • Nonstress Test or Biophysical Profile:  No preparation required.

  • Level 2 (2nd Trimester Targeted Ultrasound):  2 (8oz) glasses of fluid (non-carbonated).  Finish drinking 30 minutes prior to ultrasound.  Do not urinate (full bladder required*).

  • After 28 weeks of pregnancy:  No preparation required.

*PLEASE NOTE:  these guidelines are not meant to cause extreme discomfort or pain; drink only until bladder is at a full yet comfortable level.