ASRT Exam 5 help With Questions And 100% ALL SURE ANSWERS
Terms in this set (100)
_ ___ is the local processing function of D) Windowing
renumbering pixel values for an entire image
domain
A) The look-up table (LUT)
B) The histogram
C) Equalization
D) Windowing
Minimizing patient exposure occurs when all of A) adding contrast medium
the following EXCEPT ___ are done.
A) adding contrast medium
B) reducing the mAs
C) adding filtration
D) reducing the object-to-image distance (OID)
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,The _____ position BEST demonstrates the right A) LPO
sacroiliac joint.
A) LPO
B) RPO
C) LAO
D) right lateral
The fluoroscopic foot switch is a: A) positive-pressure switch
A) positive-pressure switch.
B) negative-pressure switch.
C) toggle switch.
D) variable resistor.
The _____ is NOT a primary factor in the D) generator phase
production of a radiograph.
A) milliamperage (mA)
B) time (seconds)
C) kilovoltage peak (kVp)
D) generator phase
The tangential projection, or Gaynor-Hart method, B) carpal canal
of the wrist evaluates the:
A) carpal bridge.
B) carpal canal.
C) trapezium.
D) styloid tip of the radius.
An increase in patient exposure will result from: C) increased grid ratio
A) decreasing mAs.
B) decreasing object-to-imaged distance OID.
C) increasing grid ratio.
D) increasing focal spot size.
_ ___ is the MOST important factor in controlling C) Object-to-image distance (OID)
size distortion.
A) Focal spot size
B) Source-to-image distance (SID)
C) Object-to-image distance (OID)
D) Exposure time
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, Which of the following is NOT a means of C) chest tube
delivering oxygen to a patient?
A) nasal cannula
B) mechanical ventilator
C) chest tube
D) non-rebreathing mask
The negative side of the x-ray tube is known as C) cathode
the:
A) anode.
B) focusing cup.
C) cathode.
D) rotor.
When acquiring nontrauma radiographs on the D) dorsiflexed
ankle it is important to place the foot in a(n) ________
position.
A) inverted
B) everted
C) plantarflexed
D) dorsiflexed
Which of the following statements correctly C) the abdomen becomes thicker; technique must increase
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
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