What is an echo and what does it show?
- the amount of blood being pumped through the heart with each beat
- the pressure in the pulmonary arteries.
How is an echo done?
An echo is done with you lying on your left-hand side. A trained technician then passes a device that looks like a microphone – called a transducer – over your chest area at various angles. To help the procedure, a jelly-like substance is rubbed onto the tip of the transducer. The echo can be videoed or images recorded onto photographic paper. The whole test takes about 15–30 minutes.