Download LMRT Core & Patient Care Exam Questions and Answers and more Exams Nursing in PDF only on Docsity!
& Answers ( Latest update 2025 )
Signal-To-Noise Ratio - Correct Answers ✅ The ability to convert an electric signal into a useful image Edge Enhancement - Correct Answers ✅ A process in which images can be made sharper and have better contrast Source or Reservoir of Infection - Correct Answers ✅ Any place where pathogens can thrive in sufficient numbers to pose a threat Susceptible Host - Correct Answers ✅ Patient whose natural resistance to infection is diminished Pathogen - Correct Answers ✅ Microorganisms that cause disease What are the standard precautions for patient care? (3) - Correct Answers ✅ 1) Hand Washing
- Wearing protective wear (gloves, masks, aprons, eye protection)
& Answers ( Latest update 2025 )
- Placing needles in sharps container( do not break bend or recap needles) Vehicle - Correct Answers ✅ Any medium that transports microorganisms Surgical Asepsis - Correct Answers ✅ The complete removal of all organisms & their spores from equipment Medical Asepsis - Correct Answers ✅ The process of reducing the probability of infectious organisms being transmitted to an individual Patients Information - Correct Answers ✅ Patients have right to their information including billing, medical and radiographic records Confidentiality - Correct Answers ✅ HIPPA protect patients and their rights
& Answers ( Latest update 2025 )
Patient Privacy - Correct Answers ✅ Patients modesty will be respected & every effort will be made to protect the patients dignity Rescaling or Automatic Rescaling - Correct Answers ✅ Pixel values are adjusted to produce an image Histogram - Correct Answers ✅ A graphic representation of digitally recorded signals of an image Fixing Agent - Correct Answers ✅ Ammonium Thiosulfate Developer Agents - Correct Answers ✅ Phenidone & Hydroquinone Spatial Resolution - Correct Answers ✅ Sharpness and structures recorded in the image Smoothing - Correct Answers ✅ Filtering pixel values to reduce noise
& Answers ( Latest update 2025 )
Values of Interest (VOI) - Correct Answers ✅ Image values in the region of interest Dynamic Range - Correct Answers ✅ A response to determine different levels of radiation Informed Consent (7) - Correct Answers ✅ 1) Pt must receive full explanation of procedure risks and benefits
- Pt must be competent to sign form
- Only parents or legal guardians may sign for minors or mentally ill patients
- Forms must be completed before signing
- Only physician on for can perform procedure
- Any condition stated on form must be met
- Pt can revoke consent at any time What are the 5 stages of dealing w/ loss of a patient? - Correct Answers ✅ 1) Denial
- Anger
- Bargaining
& Answers ( Latest update 2025 )
Nonverbal Communication - Correct Answers ✅ 1) Make good eye contact
- Send a positive vibe through touch weather its a hand shake or a pat on the back Air Kerma or Roentgen - Correct Answers ✅ Radiation in Air Gray or RAD - Correct Answers ✅ Divided between radiation in air and radiation in tissue Sievert or REM - Correct Answers ✅ Radiation in Man What type of environment is best kept for film storage? - Correct Answers ✅ A cool and dry place with a temp of 50- degrees How does Plate Erasure Work? - Correct Answers ✅ A florescent light source quickly erases the cassette
& Answers ( Latest update 2025 )
What are the CR Reader Components? - Correct Answers ✅ Optical, Mechanical and Computer Module What is the Operating Console? - Correct Answers ✅ Located in the control booth, and is the access point where you set your exposure factors and initiate exposure Pediatric Techniques - Correct Answers ✅ Pediatric tissue is more sensitive to radiation than adult tissue Matrix - Correct Answers ✅ A series of thousands of very small boxes or squares that create an image Pixel - Correct Answers ✅ An individual square in the matrix Quantum Mottle - Correct Answers ✅ Grainy or Spotted Image Thermionic Emission - Correct Answers ✅ When so many electrons are created around the filament it created an electron cloud
& Answers ( Latest update 2025 )
Induction Motor - Correct Answers ✅ An electromagnetic motor used to rotate the anode through electromagnetic induction Manuel Exposure Controls - Correct Answers ✅ mA, kVp & exposure time 3 types of generators - Correct Answers ✅ 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 Answers ✅ High-Frequency Generator Transformer - Correct Answers ✅ A device used to produce high voltage needed for x-ray production Rectification - Correct Answers ✅ ensures that the current is flowing in the right direction
& Answers ( Latest update 2025 )
How does a Photo-Stimulable Phosphor (PSP) work? - Correct Answers ✅ 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 Answers ✅ 2% What is the standard limit for the CR beam alignment? - Correct Answers ✅ the tube must be within 1 degree perpendicular What does Quantity Control? - Correct Answers ✅ mAs What does Quality Control? - Correct Answers ✅ kVp What does the Inverse Square Law state? - Correct Answers ✅ Intensity is inversely proportional to the square of the distance (formula: Intensity 1 over Intensity 2 SID 2 squared over SID 1 squared)
& Answers ( Latest update 2025 )
- Phantom or Ghost Images- Incomplete erasure
- Scratches or Tears- Damage to CR plates
- Extraneous Line Patterns- Noise in the reader
- Fogging- Scatter Radiation Res Ispa Loquitur - Correct Answers ✅ A legal document applied when negligence & loss are so apparent & obvious to anyone Caliper Measurement - Correct Answers ✅ A tool used to measure body part Shields - Correct Answers ✅ Gowns, Gloves & Thyroid Shields Anatomically Programmed Radiography (APR) - Correct Answers ✅ A system that stores the technique chart into the computers memory Fundamental Properties of X-rays - Correct Answers ✅ Travel in straight lines ionize matter
& Answers ( Latest update 2025 )
cannot be seen or felt travels at the speed of light What is the Direct Conversion process? - Correct Answers ✅ Converts x-ray energy into an electric signal w/out light What is the Indirect Conversion Process? - Correct Answers ✅ X- ray energy is converted into light and then into and electric signal Density - Correct Answers ✅ Overall Blackness Contrast - Correct Answers ✅ Difference in Density of the film What are the most common sterile techniques? - Correct Answers ✅ Chemical, Gas & Steam Techniques Direct Contact - Correct Answers ✅ Touched by an infected person skin to skin
& Answers ( Latest update 2025 )
Vectors - Correct Answers ✅ An Arthropod (insect) in whose body an infectious organisms develops or multiplies Fomite - Correct Answers ✅ An object that has come in contact with a pathogenic organism What are the 6 main routes of transmission? - Correct Answers ✅ Direct Contact Fomites Vectors Vehicles Airborne Contamination Droplet Contamination Variable KVP Chart - Correct Answers ✅ Higher image contrast which provides greater detail Fixed KVP Chart - Correct Answers ✅ Exposures will have more wider range of densities (latitude) for exposure error
& Answers ( Latest update 2025 )
Who invented X-rays? - Correct Answers ✅ Wilhelm Conrad Roentgen When were X-Rays Invented? - Correct Answers ✅ 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 Answers ✅ American Society of Radiologic Technologists (ASRT) Who establishes standards & examinatins necessary to certify radiologic technologists? - Correct Answers ✅ American Registry of Radiologic Technologists (ARRT) What is the abbriviation for RT (R)? - Correct Answers ✅ Registered Technologists (Radiography) What national organization formally conducts the accredidation of schools of radiologic technology? - Correct Answers ✅ Joint Review Committee on Education in Radiologic Technology (JRCERT)
