DXA scanning systems
A) are classified as fan beam or pencil beam.
B) may use a rare-earth filtered x-ray source.
C) may employ a synchronous, high frequency generator to switch between photon energies.
D) all of the above
Correct Answer:
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Q18: DXA scanning provides a statistical assessment of
Q19: Dual energy x-ray absorptiometry (DXA)
A)uses radioactive gadolinium.
B)is
Q20: Osteopenia occurs with a T-score of
A)+1.9.
B)+2.5.
C)-2.0.
D)-2.7.
Q21: Match the following choices with the correct
Q22: Proper patient positioning for DXA scans of
Q24: Quality control procedures with DXA systems
A)are done
Q25: Match the following choices with the correct
Q26: The principle of DXA scanning relies upon
Q27: A modern DXA scanning system consists of
1)workstation
2)x-ray
Q28: The BMD values of a DXA phantom
A)change
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