Deck 28: Diagnostic Medical Sonography

Question 1

A full bladder is used for imaging the female pelvis as a sonic window and to also:

A) flatten the vagina.
B) reposition the intestines laterally.
C) distend the uterus.
D) flatten the ovaries.

Answer 1

reposition the intestines laterally.

Question 2

The echo pattern of a cyst can be referred to as:

A) echogenic.
B) anechoic.
C) hyperechoic.
D) hypoechoic.

Answer 2

anechoic.

Question 3

A normal liver scan should have an _____ echo pattern.

A) hyperechoic
B) hypoechoic
C) homogeneous
D) heterogeneous

Answer 3

homogeneous

Question 4

Sound is attenuated by:

A) soft tissue.
B) fluid-filled structures.
C) most bony structures.
D) solid organs.

Question 5

The frequency for diagnostic ultrasound is in the range of:

A) 2 to 30 MHz.
B) 2 to 30,000 kHz.
C) 1 to 20 MHz.
D) 1 to 20,000 kHz.

Question 6

Ultrasonic sound waves are:

A) poorly transmitted by liquids.
B) poorly transmitted by solids.
C) reflected at tissue interfaces.
D) constant in speed.

Question 7

The exam to evaluate for deep vein thrombosis and venous insufficiency is:

A) duplex sonography.
B) endovaginal.
C) transabdominal.
D) volume scanning.

Question 8

Sometimes examinations in the abdominal cavity are difficult to perform because of:

A) air or gas in the gastrointestinal tract.
B) bony anatomy.
C) tissue differences.
D) too much fluid.

Question 9

Routine obstetric screening exams are usually requested between _____ gestational weeks.

A) 8 and 12
B) 12 and 16
C) 16 and 24
D) 24 and 30

Question 10

The propagation speed of sound in soft tissue is _____ m/s.

A) 150
B) 330
C) 1020
D) 1540

Question 11

The velocity of an ultrasound beam is:

A) constant in speed.
B) constant for all solids.
C) determined by the density of material.
D) proportional to frequency cubed.

Question 12

Which position is used at the beginning of echocardiography exam?

A) 45- to 60-degree LPO
B) Supine
C) Right lateral debuitus
D) Left lateral decubitus

Question 13

Hertz measures:

A) cycles per second.
B) amplitude of an echo.
C) number of waves.
D) wavelength.

Question 14

The principle on which the ultrasound transducer operates is the _____ effect.

A) photoelectric
B) crystalline
C) piezoelectric
D) transducer

Question 15

If an echo pattern is similar throughout a structure or mass,it is termed:

A) heterogeneous.
B) homogeneous.
C) complex.
D) anechoic.