Ultrasound Preparations

You should wear comfortable, loose-fitting clothing for your ultrasound exam. Other preparation depends on the type of examination you will have.

The following tests DO NOT require any preparation:

  • Breast
  • Scrotal
  • Thyroid
  • Transvaginal
  • Vascular


The following tests require preparation:


Abdomen
Nothing to eat 8 hours prior to exam, patient may take medications.

Abdomen & Abdomen Retro Complete/Limited
Nothing to eat 8 hours prior to exam, must have full bladder prior to exam (see drinking instructions below), patient may take medications.

Abdomen Retro Complete/Limited
Must have full bladder prior to exam (see drinking instructions below), patient may take medications.

Aorta/AAA
Nothing to eat 8 hours prior to exam, patient may have water and may take medications with water.

Kidney/Bladder
Must have full bladder prior to exam (see drinking instructions below), patient may take medications.

Pelvis Non-OB
Must have full bladder prior to exam (see drinking instructions below), patient may take medications.

Pelvis OB
Must drink 32 oz of water 45 minutes prior to exam, patient may void. Note: if over 35 weeks, no prep.

Pelvis with Transvaginal
Must have full bladder prior to exam (see drinking instructions below), patient may take medications.

Renal Artery with Doppler for Stenosis
Evening prior – dinner should be light and consist of clear liquids only (jello, broth, tea), no dairy. Nothing to eat or drink for 8 hours prior to exam.

Renal/Kidney
Must have full bladder prior to exam (see drinking instructions below), patient may take medications.

Drinking instructions

  • 2-6 years old – 8 oz of water 30 minutes prior to exam
  • 6-12 years old - 16 oz of water 30 minutes prior to exam
  • 12-18 years old – 32 oz of water 30 minutes prior to exam
  • 18 years old - 32 oz of water 45 minutes prior to exam. Male patients, 18 years and over, 24 oz of water 45 minutes prior to exam.