LMRT CORE & PATIENT CARE EXAM
2025 QUESTIONS AND ANSWERS
Signal-To-Noise Ratio - ANS The ability to convert an electric signal into a useful image
Edge Enhancement - ANS A process in which images can be made sharper and have better
contrast
Source or Reservoir of Infection - ANS Any place where pathogens can thrive in sufficient
numbers to pose a threat
Susceptible Host - ANS Patient whose natural resistance to infection is diminished
Pathogen - ANS Microorganisms that cause disease
What are the standard precautions for patient care? (3) - ANS 1) Hand Washing
2) Wearing protective wear (gloves, masks, aprons, eye protection)
3) Placing needles in sharps container( do not break bend or recap needles)
Vehicle - ANS Any medium that transports microorganisms
Surgical Asepsis - ANS The complete removal of all organisms & their spores from equipment
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, Medical Asepsis - ANS The process of reducing the probability of infectious organisms being
transmitted to an individual
Patients Information - ANS Patients have right to their information including billing, medical
and radiographic records
Confidentiality - ANS HIPPA protect patients and their rights
What are the Target Materials? - ANS Molybnum & Tungsten
Invasion of Privacy - ANS When a persons confidential information is not maintained or when
a person has been improperly exposed or touched
Bit Depth - ANS A measurement of how many colors are in an image
What are the Sources of Electrons? - ANS A Filament & Tungsten Wire
Gray Scale - ANS Recorded intensity in different shades of brightness
LUT - ANS A histogram of the luminance values taken during image acquisition
Patient Privacy - ANS Patients modesty will be respected & every effort will be made to
protect the patients dignity
Rescaling or Automatic Rescaling - ANS Pixel values are adjusted to produce an image
Histogram - ANS A graphic representation of digitally recorded signals of an image
2 Copyright ©2025 SIRJOEL ALL RIGHTS RESERVED
2025 QUESTIONS AND ANSWERS
Signal-To-Noise Ratio - ANS The ability to convert an electric signal into a useful image
Edge Enhancement - ANS A process in which images can be made sharper and have better
contrast
Source or Reservoir of Infection - ANS Any place where pathogens can thrive in sufficient
numbers to pose a threat
Susceptible Host - ANS Patient whose natural resistance to infection is diminished
Pathogen - ANS Microorganisms that cause disease
What are the standard precautions for patient care? (3) - ANS 1) Hand Washing
2) Wearing protective wear (gloves, masks, aprons, eye protection)
3) Placing needles in sharps container( do not break bend or recap needles)
Vehicle - ANS Any medium that transports microorganisms
Surgical Asepsis - ANS The complete removal of all organisms & their spores from equipment
1 Copyright ©2025 SIRJOEL ALL RIGHTS RESERVED
, Medical Asepsis - ANS The process of reducing the probability of infectious organisms being
transmitted to an individual
Patients Information - ANS Patients have right to their information including billing, medical
and radiographic records
Confidentiality - ANS HIPPA protect patients and their rights
What are the Target Materials? - ANS Molybnum & Tungsten
Invasion of Privacy - ANS When a persons confidential information is not maintained or when
a person has been improperly exposed or touched
Bit Depth - ANS A measurement of how many colors are in an image
What are the Sources of Electrons? - ANS A Filament & Tungsten Wire
Gray Scale - ANS Recorded intensity in different shades of brightness
LUT - ANS A histogram of the luminance values taken during image acquisition
Patient Privacy - ANS Patients modesty will be respected & every effort will be made to
protect the patients dignity
Rescaling or Automatic Rescaling - ANS Pixel values are adjusted to produce an image
Histogram - ANS A graphic representation of digitally recorded signals of an image
2 Copyright ©2025 SIRJOEL ALL RIGHTS RESERVED
