LMRT Core & Patient Care Questions with
Correct Answers
How does a Photo-Stimulable Phosphor (PSP) work? Correct Answ_It stores the image in
the cassette until it is processed
The light field and the radiation field must be within how much percent of the SID Correct
Answ_2%
What is the standard limit for the CR beam alignment? Correct Answ_the tube must be
within 1 degree perpendicular
What does Quantity Control? Correct Answ_mAs
What does Quality Control? Correct Answ_kVp
What does the Inverse Square Law state? Correct Answ_Intensity is inversely proportional to
the square of the distance (formula: Intensity 1 over Intensity 2 SID 2 squared over SID 1
squared)
,Deceleration of Electrons Correct Answ_when the electrons hit the anode heel effect & shot
down the glass housing. creating photons
Acceleration of Electrons Correct Answ_When the electrons are being pulled towards the
target
Display Monitor Quality Assurance Correct Answ_ARC suggest the monitor be checked for
quality at daily, monthly & quarterly time frames
What affects film storage? Correct Answ_Heat, Humidity and Radiation
What are the Beam Restriction devices? Correct Answ_Field size & collimation
Artifacts (7) Correct Answ_1) Quantum Mottle- Grainy appearance
2) Moiré Patterns- Grid & laser are not lined up right
3) Light Spots- Dust or foreign material
4) Phantom or Ghost Images- Incomplete erasure
, 5) Scratches or Tears- Damage to CR plates
6) Extraneous Line Patterns- Noise in the reader
7) Fogging- Scatter Radiation
Res Ispa Loquitur Correct Answ_A legal document applied when negligence & loss are so
apparent & obvious to anyone
Caliper Measurement Correct Answ_A tool used to measure body part
Shields Correct Answ_Gowns, Gloves & Thyroid Shields
Anatomically Programmed Radiography (APR) Correct Answ_A system that stores the
technique chart into the computers memory
Fundamental Properties of X-rays Correct Answ_Travel in straight lines
ionize matter
cannot be seen or felt
travels at the speed of light
Correct Answers
How does a Photo-Stimulable Phosphor (PSP) work? Correct Answ_It stores the image in
the cassette until it is processed
The light field and the radiation field must be within how much percent of the SID Correct
Answ_2%
What is the standard limit for the CR beam alignment? Correct Answ_the tube must be
within 1 degree perpendicular
What does Quantity Control? Correct Answ_mAs
What does Quality Control? Correct Answ_kVp
What does the Inverse Square Law state? Correct Answ_Intensity is inversely proportional to
the square of the distance (formula: Intensity 1 over Intensity 2 SID 2 squared over SID 1
squared)
,Deceleration of Electrons Correct Answ_when the electrons hit the anode heel effect & shot
down the glass housing. creating photons
Acceleration of Electrons Correct Answ_When the electrons are being pulled towards the
target
Display Monitor Quality Assurance Correct Answ_ARC suggest the monitor be checked for
quality at daily, monthly & quarterly time frames
What affects film storage? Correct Answ_Heat, Humidity and Radiation
What are the Beam Restriction devices? Correct Answ_Field size & collimation
Artifacts (7) Correct Answ_1) Quantum Mottle- Grainy appearance
2) Moiré Patterns- Grid & laser are not lined up right
3) Light Spots- Dust or foreign material
4) Phantom or Ghost Images- Incomplete erasure
, 5) Scratches or Tears- Damage to CR plates
6) Extraneous Line Patterns- Noise in the reader
7) Fogging- Scatter Radiation
Res Ispa Loquitur Correct Answ_A legal document applied when negligence & loss are so
apparent & obvious to anyone
Caliper Measurement Correct Answ_A tool used to measure body part
Shields Correct Answ_Gowns, Gloves & Thyroid Shields
Anatomically Programmed Radiography (APR) Correct Answ_A system that stores the
technique chart into the computers memory
Fundamental Properties of X-rays Correct Answ_Travel in straight lines
ionize matter
cannot be seen or felt
travels at the speed of light
