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Chapter 1
Introduction to Radiography, Safety, and Student Success
Question | Answer |
---|---|
The center or midpoint of the x-ray beam | Central Ray |
Includes the trunk, arms above the elbows, and legs above the knees; it is used for purposes of radiation exposure doses | Whole body |
Radiation damage that occur to persons whose ancestors were irradiated | Genetic effects |
Radiation protection standards that state radiation must be as low as reasonably achievable | ALARA |
The central ray entering the patient's anterior surface and exiting the patient's posterior surface | Anterior Posterior (AP) |
Radiation damage that occurs to the person who received the radiation | Somatic effects |
Central ray entering the patient's posterior surface and exiting the patient's anterior surface | Posterior Anterior (PA) |
A glass tube that is partially evacuated in which electrons can flow from the cathode to the anode | Crooke's tube |
Physical, mental or emotional strain or tension | Stress |
Subject to or involving emotion or emotions; emotion is a generalized feeling or feelings | Emotional |
Learn through doing or touching | Kinesthetic learners |
Who discovered X-Ray | William C. Roentgen |
Who invented fluoroscopy | Thomas Edison |
Who was an early radiologist who suffered the effects of radiation because of his use of the fluoroscope | Mihran Kassabian |
The effects that happen to the person exposed to the radiation | Somatic |
What is the current annual occupational dose limit as set by the NCRP #160 | 5 rem (50 mSv) |
The direction of the path of the central ray (CR) | Projection |
The radiographic position refers to the | Specific body positions |
The three concepts of ALARA are | Time, distance, shielding |
T/F: The inverse square law states that the intensity of the radiation beam will be decreased by a factor of 4 if the distance between the technologist and the source is doubled | True |
T/F: Besides shielding, another aspect of patients protection is communication | True |
T/F: Collimation of the x-ray beam is the same as cropping the digital image | False |