To evaluate valvular insufficiency or stenosis, septal defects, congenital anomalies, myocardial function, myocardial blood supply, and cardiac wall motion

To aid in diagnosing left ventricular enlargement, aortic root enlargement, ventricular aneurysms, and intracardiac shunts

Make sure that the consent form is signed by the child’s parents or legal guardians.

Notify the physician of hypersensitivity to shellfish, iodine, or contrast media.

Stop anticoagulants, as ordered, to reduce complications of bleeding.

Restrict food and fluids for at least 6 hours before the test.

Describe to the child and his parents the procedure room as well as the equipment that will be used during the procedure. Show the child where on his body the catheter will be inserted, using a doll to prepare him (if age appropriate and as necessary).

Tell the child that the lights in the room will be dimmed after the catheter is placed. Reassure him that you’ll be right there with him and will talk to him throughout the procedure.

Tell the child that he may feel warm after the contrast medium is injected.

Inform the child and his parents that the test will take 1 to 2 hours.

Assess the child’s color, temperature of his extremities, and pedal pulses.

The child is placed supine on a table and his heart rate and rhythm, respiratory status, and blood pressure are monitored throughout the procedure.