Chapter 3 TTE workbook questions

Choose the statement that best describes a TTE.

• noninvasive study

• real-time ultrasound

• relatively quick & reliable exam

• all of the above

Ultrasound is a sound wave with a frequency ______.

• <20 Hertz

• <2000 Hertz

• >2000 Hertz

• >20,000 Hertz

Transducer is comprised of many piezoelectric crystals of lead zirconate titanate (PZT).

• true

• false

What determines the number of scan lines in the ultrasound beam?

• number of PZT elements

• resolution

• shape of the beam

• size of the beam

Where is the best resolution in the ultrasound beam?

• far field

• lateral field

• near field

• all of the above

Pulses leave the transducer, travel to the body, collide with structures, reflect back to the transducer, and return to the ultrasound unit where they are processed into images.

• true

• false

Today, most labs practice digital storage.

• true

• false

Pediatric transducer is ______ and provides excellent resolution, while the adult transducer is ______ and provides better depth penetration.

• 2-5 MHz / 5-12 MHz

• 5-12 MHz / 2-5 MHz

• low frequency/high frequency

• none of the above

Which of the following ensures proper orientation of the anatomy?

• scanning maneuvers

• transducer frequency

• transducer indicator

• transducer size

Sonographer should never utilize unconventional windows or views.

• true

• false

Answer explanation

When conventional views aren't available