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.
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Amniocentesis: 2 (8oz) glasses of fluid (non-carbonated). Finish drinking 30 minutes prior to ultrasound.
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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*).
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1st Trimester Transvaginal Ultrasound (up to 10 weeks pregnant): No preparation required.
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Nonstress Test or Biophysical Profile: No preparation required.
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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*).
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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.