ARDMS EXAM NEWEST 2025/2026 COMPLETE ALL QUESTIONS AND 100%CORRECT ANSWERS WITH RATIONALES (VERIFIED AND GRADED A+)

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ARDMS EXAM NEWEST 2025/2026 COMPLETE ALL

QUESTIONS AND 100%CORRECT ANSWERS WITH

RATIONALES (VERIFIED AND GRADED A+)

If the diameter of the PZT crystal is 13 mm, which

sentence describes the

sound wave's diameter in the Fresnel zone?

a. The sound beam will be half of the diameter of the

crystal in the Fresnel zone.

b. 13 mm

c. 26 mm

d. The sound wave narrows as it leaves the transducer. -

ANSWER-d. The sound wave narrows as it leaves the

transducer.

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The amount of divergence that occurs in the far field is

determined by the

sound wave's frequency and which component?

a. Line density

b. Focal zone depth

c. Diameter of the crystal

d. Speed - ANSWER-c. Diameter of the crystal




What is the fundamental reason that the power and

intensity of the ultrasound beam diminish as it travels

through tissue?

a. Absorption

b. Cavitation

c. Obstruction

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d. Acoustic impedance - ANSWER-a. absorption




Select the modification that the sonographer can make to

decrease the amount of attenuation as the ultrasound

beam travels through tissues.

a. Increase the imaging depth.

b. Increase the frequency of the transducer.

c. Decrease the output power.

d. Decrease the frequency of the transducer. - ANSWER-

d. decrease the frequency of the transducer




Choose the ultrasound system function that enables the

sonographer to

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adapt to the amount of attenuation that occurs with

increasing depth.

a. Focusing

b. Receiver gain

c. TGC

d. Output power - ANSWER-c. TGC




Assume that a sound beam is traveling in soft tissue.

Calculate the

attenuation coefficient if the frequency is 12 MHz.

a. 12dB/cm

b. 6 dB/cm

c. 8 dB/cm

d. 10 dB/cm - ANSWER-b. 6 dB/cm