preparation will depend on the type of ultrasound, and your doctor will
give you specific direction. For some exams, you may need to abstain
from eating or drinking for a time prior to the exam; or, you may have
to drink up to six glasses of water two hours beforehand for a full
Wear comfortable, loose-fitting clothing. There are no x-rays or
contrast medium involved, and the procedure is virtually painless.
To perform the exam, the technologist will spread a warm gel on
the skin over the area of interest, place a small device called a
transducer firmly against the body, and sweep it back and forth to
capture the image.