Ohio GXMO Exam Gxmo Ohio Actual

Ohio GXMO Exam Gxmo Ohio Actual Exam Latest Update Questions and Correct Answers Rated A+

The methods used to protect operators from unnecessary radiation exposure; time, distance and shielding -ANSWER-Cardinal Principles of Radiation Protection

A rigid holder that contains the film and screens -ANSWER-Cassette

Negative side of the x-ray tube, contains the filament and the focusing cup -ANSWER-Cathode

Center of the primary x-ray beam that interacts with the image receptor -ANSWER-Central Ray

One of two types of x-ray productions. Created when an electron enters the tungsten anode of the x-ray tube and knocks out a K-shell electron. This interaction produces an x-ray photon -ANSWER- Characteristic Radiation

Scattering of x-rays with no loss of energy; also called classical scattering -ANSWER-Coherent Scattering

Restriction of the useful x-ray beam to reduce patient dose and improve image contrast -ANSWER-Collimation

Boxlike device attached under the tube housing which allows the x-ray operator to vary the beam size and shape -ANSWER-Collimator

Material Inserted between an x-ray source and a patient to shape the intensity of the x-ray beam -ANSWER-Compensating Filter

Interaction between an x-ray and a loosely bound outer-shell electron that results in ionization and x-ray scattering -ANSWER-Compton Scattering

One of two types of digital imaging systems. Cassette based and uses a photo stimulable phosphor as the image receptor -ANSWER- Computed Radiography (CR)

Radiography in which a three-dimensional image of a body structure is constructed by computer from a series of plane cross-sectional images made along an axis -ANSWER-Computed Tomography (CT)

Degree of difference between light and dark areas of a radiograph - ANSWER-Contrast

The ability to distinguish anatomical structures of similar subject contrast such as liver-spleen and gray matter-white matter -ANSWER- Contrast Resolution

Extra personal dosimeter that is used to measure any radiation exposure that might occur to the entire batch while in transit. It should be stored away from any possibility of x-ray exposure. -ANSWER- Control Badge

The area where the control console is located. It is separated from the x-ray room by a lead barrier to protect the operator from scatter radiation -ANSWER-Control Booth

The access point at which the operator sets the exposure factors and initiates exposure -ANSWER-Control Console

One of two systems used to measure radiation and radiation dose. - ANSWER-Conventional System

Unit used in computed radiography to scan and process the latent image -ANSWER-CR Reader

A switch that is automatically operated if the human operator becomes incapacitated, such as through death, loss of consciousness, or being bodily removed from control -ANSWER-Dead Man Switch

The patient is recumbent or lying down and the x-ray beam is horizontal -ANSWER-Decubitus

Instrument that measures the optical density of exposed film - ANSWER-Densitometer

Overall blackness of the radiograph -ANSWER-Density

Degree of sharpness of structural lines on a radiograph -ANSWER- Detail

A special mechanism built into tube supports to stop movement in a specific location -ANSWER-Detent

Different degrees of absorption in different tissues that result in image contrast and formation of the x-ray image -ANSWER-Differential Absorption

Different degrees of absorption in different tissues that result in image contrast and formation of the x-ray image -ANSWER-Differential Attenuation

One of the two types of digital imaging systems. Cassette-less because these systems do not use a cassette with phosphors. Instead the phosphor is bonded to a flat panel detector built into the x-ray table. -ANSWER-Digital (Direct) Radiography

The universally accepted standard for the storage, transmission, and display of medical images -ANSWER-Digital Imaging and Communications in Medicine (DICOM)

Detectors convert the x-ray energy directly to an electric signal through an amorphous selenium detector without the light conversion.-ANSWER-Direct Conversion

When the x-ray photon strikes the DNA and causes damage - ANSWER-Direct Hit

Guidance and instruction provided to a general x-ray machine operator by a licensed practitioner who is present at the location, and in such immediate proximity so that the licensed practitioner can provide timely consultation and direction when the operator is performing radiologic procedures -ANSWER-Direct supervision

Situated away from the center of the body, or from the point of origin; specifically applied to the extremity or distant part of a limb or organ - ANSWER-Distal

Misrepresentation of the true size or shape of the image -ANSWER- Distortion

The most important molecule in the human body which contains the genetic information for each cell -ANSWER-DNA

A medical order written by a doctor. It instructs health care providers not to do cardiopulmonary resuscitation (CPR) if a patient's breathing stops or if the patient's heart stops beating. -ANSWER-DNR (Do Not Resuscitate) order

The tendency for the operator to gradually increase dose over time - ANSWER-Dose Creep

Maximum permissible occupational radiation dose -ANSWER-Dose Limit

A post processing technique which is used to amplify changes in anatomy or disease by enhancing contrast -ANSWER-Dual Energy Subtraction