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: 3 (8 oz.) glasses of fluid (non-carbonated). Finish drinking one hour prior to ultrasound. Do not urinate (full bladder required). Light breakfast recommended.

• CVS: 3 (8 oz.) glasses of fluid (non-carbonated). Finish one hour prior to ultrasound. Do not urinate (full bladder required). Light breakfast recommended.

• 1st Trimester Ultrascreen: 3 (8 oz.) glasses of fluid (non-carbonated). Finish drinking one hour prior to ultrasound. Do not urinate (full bladder required). Light breakfast recommended.

• 1st Trimester Transvaginal Ultrasound (up to 12 weeks pregnant): No preparation required.

• Nonstress test or Biophysical profile: No preparation required.

• Ultrasound:

• (2nd trimester targeted ultrasound): 3 (8 oz.) glasses fluid (non-carbonated). Finish drinking one hour prior to ultrasound. Do not urinate (full bladder required).

• After 28 weeks of pregnancy: No preparation required.