concrete operational stage in Piaget’s theory, the developmental period from about ages six to eleven, at this time, the child has acquired mental operations that allow her or him to abstract some essential attributes or reality, such as number and substance, but these operations are as yet applicable to only concrete events and cannot be considered entirely in the abstract
Identify the purpose of the radiation film badgea. to reduce the radiation exposure to the patientb. to protect the radiographer from radiation exposurec. to protect the radiology cubicle from overheatingd. to monitor the radiation exposure to the radiographer
A diagnostic film is produced using 10mA and .45 second. What exposure time is needed to produce the same film at 15 mA?a. 0.25 secondb. 0.30 secondc. 0.45 secondd. 0.50 second
During pregnancy a patienta. should be advised of her legal rights before being irradiatedb. should be warned about possible miscarriage.c. should never be irradiated for dental radiographsd. may be irradiated for dental radiographs by taking the necessary precautions
Identify the reduction in exposure time when changing from D-speed film to E-speed filma. reduce by 1/8b. reduce by 1/4c. reduce by 1/3d. reduce by 1/2
Identify the recommended distance between the safelight and work surfacea. minimum of 1 footb. minimum of 2 feetc. minimum of 7 feetd. minimum of 4 feet
The latent effect in radiology isa. a short-term effectb. is a direct effectc. is the time between exposure to radiation and the finding of clinical signsd. is the accumulative effect
The inverese square law is a mathematical theory abouta. the production of x-rays and filtrationb. the collimation of x-raysc. the length and quality of x-raysd. the distance from the x-ray tube to the object being exposed
the size of the x-ray focal spot influences radiographica. densityb. contrastc. definitiond. distortion
the first step in film processing isa. developmentb. rinsingc. fixationd. washinge. drying
The optimal temperature for the developer solution in a manual film processing set up isa. 70 degrees Fb. 68 degrees Fc. 80 degrees Fd. 90 degrees Fe. 55 degrees F
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