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ASRT Exam 5 Questions with 100% Verified Correct Answers 2024/2025 R198,47
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ASRT Exam 5 Questions with 100% Verified Correct Answers 2024/2025
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ASRT Exam 5 Questions with 100% Verified Correct Answers 2024/2025 ________ is the local processing function of renumbering pixel values for an entire image domain A) The look-up table (LUT) B) The histogram C) Equalization D) Windowing - Correct Answer D) Windowing Minimizing patient expos...

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  • August 19, 2024
  • 22
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • is the local processing function of renum
  • minimizing patient exposure occurs when all of the
  • the position best demonstrates the right
  • the fluoroscopic foot switch is a

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  • ASRT
  • ASRT

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ASRT Exam 5 Questions with 100% Verified Correct
Answers 2024/2025
________ is the local processing function of renumbering pixel values for an entire image domain

A) The look-up table (LUT)

B) The histogram

C) Equalization

D) Windowing - Correct Answer D) Windowing



Minimizing patient exposure occurs when all of the following EXCEPT ________ are done.

A) adding contrast medium

B) reducing the mAs

C) adding filtration

D) reducing the object-to-image distance (OID) - Correct Answer A) adding contrast medium



The ________ position BEST demonstrates the right sacroiliac joint.

A) LPO

B) RPO

C) LAO

D) right lateral - Correct Answer A) LPO



The fluoroscopic foot switch is a:

A) positive-pressure switch.

B) negative-pressure switch.

C) toggle switch.

D) variable resistor. - Correct Answer A) positive-pressure switch



The ________ is NOT a primary factor in the production of a radiograph.

A) milliamperage (mA)

B) time (seconds)

C) kilovoltage peak (kVp)

,D) generator phase - Correct Answer D) generator phase



The tangential projection, or Gaynor-Hart method, of the wrist evaluates the:

A) carpal bridge.

B) carpal canal.

C) trapezium.

D) styloid tip of the radius. - Correct Answer B) carpal canal



An increase in patient exposure will result from:

A) decreasing mAs.

B) decreasing object-to-imaged distance OID.

C) increasing grid ratio.

D) increasing focal spot size. - Correct Answer C) increased grid ratio



________ is the MOST important factor in controlling size distortion.

A) Focal spot size

B) Source-to-image distance (SID)

C) Object-to-image distance (OID)

D) Exposure time - Correct Answer C) Object-to-image distance (OID)



Which of the following is NOT a means of delivering oxygen to a patient?

A) nasal cannula

B) mechanical ventilator

C) chest tube

D) non-rebreathing mask - Correct Answer C) chest tube



The negative side of the x-ray tube is known as the:

A) anode.

B) focusing cup.

C) cathode.

D) rotor. - Correct Answer C) cathode

, When acquiring nontrauma radiographs on the ankle it is important to place the foot in a(n)
________ position.

A) inverted

B) everted

C) plantarflexed

D) dorsiflexed - Correct Answer D) dorsiflexed



Which of the following statements correctly describes how and why technical factors MUST be
changed from an anteroposterior (AP) lumbar spine to an oblique lumbar spine image?

A) the abdomen becomes denser; technique must increase

B) the abdomen becomes less dense; technique must decrease

C) the abdomen becomes thicker; technique must increase

D) the abdomen becomes less thick; technique must decrease - Correct Answer C) the abdomen
becomes thicker; technique must increase



Defecography is used to measure and study the:

A) length of the transverse colon.

B) angles of the right and left colic flexures.

C) anorectal angle.

D) length of the sigmoid colon. - Correct Answer C) anorectal angle.



Which of the following attributes do personnel monitoring devices include? 1. They must not be
susceptible to environmental conditions. 2. Devices are designed to record only small exposures. 3.
The device must reflect human tissue absorption characteristics.

A) 1 and 2

B) 1 and 3

C) 2 and 3

D) 1, 2, and 3 - Correct Answer B) 1 and 3



The ________ detector consists of a thin-film transistor array.

A) flat-panel

B) photostimulable phosphor plate (PSP)

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