A sound system is built into the machine to allow for communication during the test. How The Test Will Feel If a dye is needed to increase the contrast between different tissues or organs, it is administered by injection into a vein. The injection may sting, and the injection site may be tender to the touch for several minutes. After the injection, there may be a warm or flushed feeling for a few seconds. The X-rays are painless, and the test is only mildly uncomfortable.
Some people experience claustrophobia or anxiety when placed within the scanner.
If you usually becomes anxious when in an enclosed area, inform the technician before the test. How To Prepare For The Test Fasting for 4 to 6 hours may be recommended if contrast dye is to be used or if sedation is anticipated. You will wear a hospital gown during the procedure. You must sign a consent form before the procedure. The physical and psychological preparation you can provide for this or any test or procedure depends on your child's age, interests, previous experience, and level of trust.