Ultrasound quiz

Question 1

With reference to ultrasound which of the following statements is True?

Select one:

a.
It uses low frequency sound waves.

b.
The sound that is audible to humans.

c.
Penetration increases with increase Kilo-voltage.

d.
It uses high frequency sound waves.

Answer 1

d.

It uses high frequency sound waves.

Question 2

For one mark, select the type of crystal that is used in the construction of an ultrasound transducer.

Select one:

a.
Piezoelectric crystal

b.
Scintillation crystal

c.
Germanium crystal

d.
Silicon crystal

e.
Silver Halide crystal

Answer 2

a.

Piezoelectric crystal

Question 3

The Transducer detects sound waves that have been….

Select one:

a.
Diverged from tissue.

b.
Attentuated by tissue.

c.
Absorbed by tissues.

d.
Deflected of tissues.

e.
Reflected from tissues.

Answer 3

e.

Reflected from tissues.

Question 4

True or False.

The crystal used in ultrasound, works on the pulse-echo principle; converting electricity into sound (pulse) and sound into electricity (echo).

Select one:
True
False

Answer 4

True

Question 5

Ultrasound uses high frequency ionising radiation to produce images.

Select one:
True
False

Answer 5

False

Question 6

What does CRL mean?

Answer 6

Crown to Rump Length