LMRT Core & Patient Care exam Questions with Correct and Verified Answers

LMRT Core & Patient Care exam Questions with Correct and Verified Answers "Susceptible Host - Correct answer Patient whose natural resistance to infection is diminished" "Pathogen - Correct answer Microorganisms that cause disease" "What are the standard precautions for patient care? (3) - Correct answer 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 - Correct answer Any medium that transports microorganisms" "What are the 5 stages of dealing w/ loss of a patient? - Correct answer 1) Denial 2) Anger 3) Bargaining 4) Depression 5) Acceptance" "Respondeat Superior - Correct answer A legal document that hold employers responsible for the Negligent acts of their employees" "Surgical Asepsis - Correct answer The complete removal of all organisms & their spores from equipment" "Medical Asepsis - Correct answer The process of reducing the probability of infectious organisms being transmitted to an individual" "Patients Information - Correct answer Patients have right to their information including billing, medical and radiographic records" "Confidentiality - Correct answer HIPPA protect patients and their rights" "What is the Operating Console? - Correct answer Located in the control booth, and is the access point where you set your exposure factors and initiate exposure" "Pediatric Techniques - Correct answer Pediatric tissue is more sensitive to radiation than adult tissue" "Matrix - Correct answer A series of thousands of very small boxes or squares that create an image" "What are the Target Materials? - Correct answer Molybnum & Tungsten" "Invasion of Privacy - Correct answer When a persons confidential information is not maintained or when a person has been improperly exposed or touched" "Bit Depth - Correct answer A measurement of how many colors are in an image" "What are the Sources of Electrons? - Correct answer A Filament & Tungsten Wire" "Gray Scale - Correct answer Recorded intensity in different shades of brightness" "LUT - Correct answer A histogram of the luminance values taken during image acquisition" "Patient Privacy - Correct answer Patients modesty will be respected & every effort will be made to protect the patients dignity" "Rescaling or Automatic Rescaling - Correct answer Pixel values are adjusted to produce an image" Signal-To-Noise Ratio - Correct answer The ability to convert an electric signal into a useful image" "Edge Enhancement - Correct answer A process in which images can be made sharper and have better contrast" "Source or Reservoir of Infection - Correct answer Any place where pathogens can thrive in sufficient numbers to pose a threat" "Histogram - Correct answer A graphic representation of digitally recorded signals of an image" "Fixing Agent - Correct answer Ammonium Thiosulfate" "Developer Agents - Correct answer Phenidone & Hydroquinone" "Spatial Resolution - Correct answer Sharpness and structures recorded in the image" "Smoothing - Correct answer Filtering pixel values to reduce noise" "Values of Interest (VOI) - Correct answer Image values in the region of interest" "Dynamic Range - Correct answer A response to determine different levels of radiation" "Informed Consent (7) - Correct answer 1) Pt must receive full explanation of procedure risks and benefits 2) Pt must be competent to sign form 3) Only parents or legal guardians may sign for minors or mentally ill patients 4) Forms must be completed before signing 5) Only physician on for can perform procedure 6) Any condition stated on form must be met 7) Pt can revoke consent at any time" "Assault - Correct answer The threat of touching in an injurious way" "Battery - Correct answer Consists of touching a person w/out consent" "False Imprisonment - Correct answer Holding a person against their will" "Libel - Correct answer Written false information that can hurt someone's reputation" "Slander - Correct answer Verbal False information that can hurt someone's reputation" "Nonverbal Communication - Correct answer 1) Make good eye contact 2) Send a positive vibe through touch weather its a hand shake or a pat on the back" "Air Kerma or Roentgen - Correct answer Radiation in Air" "Gray or RAD - Correct answer Divided between radiation in air and radiation in tissue" "Sievert or REM - Correct answer Radiation in Man" "What type of environment is best kept for film storage? - Correct answer A cool and dry place with a temp of 50-70 degrees" "How does Plate Erasure Work? - Correct answer A florescent light source quickly erases the cassette" "What are the CR Reader Components? - Correct answer Optical, Mechanical and Computer Module" "Pixel - Correct answer An individual square in the matrix" "Quantum Mottle - Correct answer Grainy or Spotted Image" "Thermionic Emission - Correct answer When so many electrons are created around the filament it created an electron cloud" "Characteristic Radiation - Correct answer When an electron knocks an atom out of orbit. Incoming electron and k-shell electron are removed leaving the space in the k-shell to be filled by another atom from the other orbits" "Bremsstrahlung Radiation - Correct answer When an electron gets to close to the nucleus, the nucleus is so strong it stops the electron in its tracks & turns it to a different direction" "Remnant Radiation - Correct answer Radiation that leave the patient & hits the IR" "Primary Radiation - Correct answer Radiation that leaves the glass housing & hits the patient" "Frequency - Correct answer The number of times a crest has passes its given point" "Wavelength - Correct answer The distance from one crest to the next" "Induction Motor - Correct answer An electromagnetic motor used to rotate the anode through electromagnetic induction" "Manuel Exposure Controls - Correct answer mA, kVp & exposure time" "3 types of generators - Correct answer Single-Phase Generator Three-Phase Generator High-Frequency Generator" "Out of the 3 types of generators, which one is needed for x-ray production? - Correct answer High-Frequency Generator" "Transformer - Correct answer A device used to produce high voltage needed for x-ray production" "Rectification - Correct answer ensures that the current is flowing in the right direction" "How does a Photo-Stimulable Phosphor (PSP) work? - Correct answer 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 answer 2%" "What is the standard limit for the CR beam alignment? - Correct answer the tube must be within 1 degree perpendicular" "What does Quantity Control? - Correct answer mAs" "What does Quality Control? - Correct answer kVp" "Display Monitor Quality Assurance - Correct answer ARC suggest the monitor be checked for quality at daily, monthly & quarterly time frames" "What affects film storage? - Correct answer Heat, Humidity and Radiation" "What are the Beam Restriction devices? - Correct answer Field size & collimation" "Artifacts (7) - Correct answer 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 answer A legal document applied when negligence & loss are so apparent & obvious to anyone" "Caliper Measurement - Correct answer A tool used to measure body part" "Shields - Correct answer Gowns, Gloves & Thyroid Shields" "Anatomically Programmed Radiography (APR) - Correct answer A system that stores the technique chart into the computers memory" "Fundamental Properties of X-rays - Correct answer Travel in straight lines ionize matter cannot be seen or felt travels at the speed of light" "What is the Direct Conversion process? - Correct answer Converts x-ray energy into an electric signal w/out light" "What is the Indirect Conversion Process? - Correct answer X-ray energy is converted into light and then into and electric signal" "Density - Correct answer Overall Blackness" "Contrast - Correct answer Difference in Density of the film" "What are the most common sterile techniques? - Correct answer Chemical, Gas & Steam Techniques" "Direct Contact - Correct answer Touched by an infected person skin to skin" "Droplet Contamination - Correct answer occurs when an infected individual coughs, sneezes, speaks or sings in front of a host" "Airborne Contamination - Correct answer spread by dust containing endospores or droplet nuclei" "Electronic Masking - Correct answer Suppression of image signal frequencies in order to enhance large structures" "What would you come in contact with when you need to use standard precautions? (5) - Correct answer Blood, Body Fluids or wound drainage, secretions or excretions, non-intact skin & mucous membranes" "Cycle of Infection - Correct answer Pathogenic Organism Reservoir of Infection Means of Transportation Susceptible Host" "Vectors - Correct answer An Arthropod (insect) in whose body an infectious organisms develops or multiplies" "Fomite - Correct answer An object that has come in contact with a pathogenic organism" "What are the 6 main routes of transmission? - Correct answer Direct Contact Fomites Vectors Vehicles Airborne Contamination Droplet Contamination" "What does the Inverse Square Law state? - Correct answer 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 answer when the electrons hit the anode heel effect & shot down the glass housing. creating photons" "Acceleration of Electrons - Correct answer When the electrons are being pulled towards the target" "Variable KVP Chart - Correct answer Higher image contrast which provides greater detail" "When were X-Rays Invented? - Correct answer November 8, 1895" "What is the world's oldest and largest professional radiologic organization who provides continuing educatuon and published the code of ethics? - Correct answer American Society of Radiologic Technologists (ASRT)" "Who establishes standards & examinatins necessary to certify radiologic technologists? - Correct answer American Registry of Radiologic Technologists (ARRT)" "What is the abbriviation for RT (R)? - Correct answer Registered Technologists (Radiography)" "What national organization formally conducts the accredidation of schools of radiologic technology? - Correct answer Joint Review Committee on Education in Radiologic Technology (JRCERT)" "Fixed KVP Chart - Correct answer Exposures will have more wider range of densities (latitude) for exposure error" "Who invented X-rays? - Correct answer Wilhelm Conrad Roentgen"