essentials for limited practice fourth edition) Questions With
Complete Solutions
A change from the small focal spot to the large focal spot will
result in Correct Answers decreased image sharpness (detail)
a health care workers single best protection against disease is
Correct Answers frequent hand washing
a lateral projection of the face using detail screens tabletop
(nongrid) is used to demonstrate the Correct Answers nasal
bones
a limited operator innocently commits an error as a result of
following the orders of his or her employer, a physician. The
employer may be held responsible according to the Correct
Answers doctrine of respondeat superior
a limited operator who does not change linens between patients
is Correct Answers providing an opportunity for fomite
transmission
According to the Bergonie-Tribondeau law, the following types
of cells are most radiosensitive Correct Answers embryonic
tissue cells
air-filled cavities located in some bones of the face and cranium
are called: Correct Answers paranasal sinuses
,An increase in object-image receptor distance (OID) will result
in Correct Answers increased magnification
anterior position Correct Answers facing the film
Are gonad shields Correct Answers Contact and shadow
As a general rule, a grid should be employed when the part
thickness is greater than Correct Answers 12 cm
At what kVp levels do Compton interactions occur Correct
Answers they occur throughout the diagnostic radiology kVp
range
Breathing technique used to advantage when taking a lateral
projection of the Correct Answers throacic spine
communication has been "validated" when the speaker has
Correct Answers received a response from the listener that
demonstrates comprehension
contrast Correct Answers visible differences between 2
selected areas of density levels within an image
Contrast is primarily controlled by altering the Correct Answers
kVp
decubitus Correct Answers lying down with horizontal x-ray
beam
, density Correct Answers degree of blackening or opacity of an
image
distance, as a method used to limit operator exposure, means
that Correct Answers the operator should maximize the
distance from the source during an exposure
During digital image processing electronic collimation
(masking) should not be used to replace Correct Answers
proper radiographic collimation
dynamic range Correct Answers range of exposures that may
be captured by a detector
Erythema as it relates to radiation exposure Correct Answers
reddening of the skin caused by a high radiation dose
gonad shielding should be used Correct Answers when the
gonads are within 5 cm of the radiation field
how can detector fog be prevented when using computed
radiography cassettes Correct Answers protect the cassette
before and after exposure
how does filtration reduce patient exposure Correct Answers
removes longer-wavelength photons
how does the x-ray beam restriction minimize patient exposure
Correct Answers it limits the radiation field to the area of
interest