Ultrasound Ultrasound is a non-invasive imaging modality that utilizes high frequency sound waved to obtain medical images of organs, tissues and blood flow within the body. You should wear comfortable clothing for your exam or you may be asked to wear a gown during the procedure. Most ultrasound exams are fast, painless, and use no ionizing radiation. You will be asked to lie on an examination table, where a warm gel will be applied on the skin to the area to be examined. A hand held transducer will be used by the sonographer which will direct a stream of high-frequency sound waves into the body. These sound waves are instantly measured by the Ultrasound machine which calculates the information and displays images on a computer monitor as the exam is being done. Ultrasound Exam Preps Abdomen, Liver, Gallbladder & Right Upper Quadrant NPO (nothing to eat or drink) - 12 hours prior Pelvis Four 8 oz glasses of water - One hour & 15 minutes prior to appointment time - finish it within 30 minutes. When and ONLY when Abdomen and Pelvis are ordered together NPO for 12 hours, except one hour & 15 minutes prior to appointment time: drink four 8 oz glasses of water and finish it all within 30 minutes. DO NOT DRINK ANYTHING AFTER THAT TIME, THIS IS VERY IMPORTANT. Renal/Kidneys (also kidneys, ureter & bladder) drink 8 oz fluid ½ hour prior to appointment. Fetal/Pregnancy Two 8 oz glasses of water ½ hour prior to appointment. During the third trimester no prep is required. NO PREP ON THE FOLLOWING: Venous Doppler – Lower extremity only Testicular Breast Thyroid The above services are provided at: Ken-Ton Open MRI and West Side Urban Imaging Back To Top