NCSRT Mock Registry|2025
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Terms in this set (79)
, skeletal anomalies
During the first trimester, specifically
the 2nd to 8th weeks of pregnancy
(during major organogenesis), if the
radiation dose is at least 0.2 Gy fetal
anomalies can be produced. Skeletal
anomalies usually appear if irradiation
occurs in the early part of this time
period (B). Neurologic anomalies are
formed in the latter part; mental
A dose of 0.25 Gy
retardation and childhood malignant
to the fetus
diseases, such as cancers or leukemia,
during the early
can also result from irradiation during
part of the first
the first trimester (C). Fetal irradiation
trimester of
during the second and third trimesters
pregnancy can
is not likely to produce anomalies, but
potentially cause
rather, with sufficient dose, some type
of childhood malignant disease. Fetal
irradiation during the first 2 weeks of
gestation can result in spontaneous
abortion (A). It must be emphasized
that the likelihood of producing fetal
anomalies at doses less than 0.05-0.15
Gy is exceedingly small and that most
general diagnostic examinations are
,likely to deliver fetal doses of less
than 0.01-0.02 Gy (D). (Saia p. 250)
, 2 and 3 only
Body parts undergoing additive or
destructive pathologic changes can
require exposure modification to
obtain the IR exposure and image
quality. Different exposures will be
required for extremities with and
without casts. Body position can also
An increase in
play an important role in obtaining the
technical factors
expected radiographic results. The
is likely to be
presence of pathology often modifies
required for the
tissue composition. Changes that
following
occur are generally spoken of as
condition(s)
additive or degenerative. Additive
1. Emphysema
pathology is that which increases
2. Atelectasis
tissue density, requiring an increase in
3. Ascites
technical factors (e.g., ascites,
pulmonary edema, rheumatoid
arthritis, pneumonia, Paget's disease,
CHF) (C). Degenerative pathology
involves deterioration of the part (e.g.,
osteoporosis, emphysema,
osteomalacia, pneumoperitoneum)
and requires a decrease in technical
factors (A, B, and D). (Saia p. 332)
Update|Complete Frequently Tested
Questions And Verified
Answers|100% Accurate Answers |
Already Graded A+|Get it right!!
Save
Terms in this set (79)
, skeletal anomalies
During the first trimester, specifically
the 2nd to 8th weeks of pregnancy
(during major organogenesis), if the
radiation dose is at least 0.2 Gy fetal
anomalies can be produced. Skeletal
anomalies usually appear if irradiation
occurs in the early part of this time
period (B). Neurologic anomalies are
formed in the latter part; mental
A dose of 0.25 Gy
retardation and childhood malignant
to the fetus
diseases, such as cancers or leukemia,
during the early
can also result from irradiation during
part of the first
the first trimester (C). Fetal irradiation
trimester of
during the second and third trimesters
pregnancy can
is not likely to produce anomalies, but
potentially cause
rather, with sufficient dose, some type
of childhood malignant disease. Fetal
irradiation during the first 2 weeks of
gestation can result in spontaneous
abortion (A). It must be emphasized
that the likelihood of producing fetal
anomalies at doses less than 0.05-0.15
Gy is exceedingly small and that most
general diagnostic examinations are
,likely to deliver fetal doses of less
than 0.01-0.02 Gy (D). (Saia p. 250)
, 2 and 3 only
Body parts undergoing additive or
destructive pathologic changes can
require exposure modification to
obtain the IR exposure and image
quality. Different exposures will be
required for extremities with and
without casts. Body position can also
An increase in
play an important role in obtaining the
technical factors
expected radiographic results. The
is likely to be
presence of pathology often modifies
required for the
tissue composition. Changes that
following
occur are generally spoken of as
condition(s)
additive or degenerative. Additive
1. Emphysema
pathology is that which increases
2. Atelectasis
tissue density, requiring an increase in
3. Ascites
technical factors (e.g., ascites,
pulmonary edema, rheumatoid
arthritis, pneumonia, Paget's disease,
CHF) (C). Degenerative pathology
involves deterioration of the part (e.g.,
osteoporosis, emphysema,
osteomalacia, pneumoperitoneum)
and requires a decrease in technical
factors (A, B, and D). (Saia p. 332)
