ECHOCARDIOGRAM Flashcards
Echocardiography utilizes ___ to produce images of the heart
and vascular structures and to provide information about the
direction and velocity of blood flow within these structures.
ultrasound
___ refers to sound waves with a frequency well beyond the
range of human hearing.
Ultrasound
5 basic component of the ultrasound scanner
pulse generator
transducer
receiver
display
memory
it applues high amplitude voltage to energize the crystals
pulse generator
converts electrical sigenergy to mechanical energy or vice versa
transducer
detects and amplifies weak signal
receiver
display ultrasound signals in a variety of modes
display
stores video display
memory
importance of echocardiogram
- Assess the overall function of the heart.
- Determine the presence of many types of heart diseases.
- Follow the progress of valve disease over time
- Evaluate the effectiveness of the medical or surgical treatments
Indications
- Changes in the heart size
- Pumping strength
- Damage to the heart muscle
- Valve problems
- Heart defects
Risk/ Contraindications
.
- No risks are involved in a standard transthoracic echocardiogram
- In a transesophageal echocardiogram, the patient’s throat may sore
for a few hours after the procedure.
Preparations:
No special preparations are necessary for a standard transthoracic
echocardiogram.
- In transesophageal echocardiogram, the patient will be asked not to
eat for several hours beforehand.
Transthoracic Echocardiogram
The technician will attach sticky
patches (___) to the
patient’s body
electrodes
Transthoracic Echocardiogram
The technician will also apply a ___
to the transducer that improves
the conduction of sound waves
gel
The technician will move the
____ back and forth over the
chest to record images of sound-
wave echoes from the heart
transducer