Patient protection Exam 1 Questions and Answers
The effects of cell mutation can be: - Answer-minor interruption of normal function
severe interruption of normal function
insignificant metabolic alterations
High bone marrow dose examinations are: - Answer-barium enema
UGI series
...
Patient protection Exam 1 Questions
and Answers
The effects of cell mutation can be: - Answer-minor interruption of normal function
severe interruption of normal function
insignificant metabolic alterations
High bone marrow dose examinations are: - Answer-barium enema
UGI series
abdominal angiography
The GSD is a function of what parameters? - Answer-x-ray examination rate
number of future children
mean gonad dose per exam
All of the following affect patient exposure except? - Answer-3-phase generators
The greatest contribution of unnecessary radiation exposure to the patient comes from
the x-ray operator's failure to: - Answer-collimate the x-ray beam to the area of clinical
interest
Somatic changes due to irradiation may induce: - Answer-injuries to the developing
fetus/embryo
impaired fertility
cancer
T/F: A genetic dose may refer to the direct dose received by the embryo/fetus: -
Answer-False
The biological effects from exposure to ionizing radiation are influenced by: - Answer-
dose rate to the tissue exposed
total dose received by the tissue exposed
type of cell irradiated
Increasing fluoroscopic x-ray tube current in mA will: - Answer-brighter image
increase patient exposure
increase radiation exposure rate at the output phosphor
The dead-man type exposure switch: - Answer-terminated the exposure when pressure
is released
, operates by circuit closing contact maintained by continuous pressure
Exposing the gonads to the highest gonadal doses in radiographic examinations results
in doses to the gonads which: - Answer-are below those that will reduce or impair
fertility
Which somatic dose indicator is a reasonable indicator of doses to the internal organs
which are sensitive to cancer induction? - Answer-bone marrow dose
The genetically significant dose is a factor of which of the following parameters? -
Answer-x-ray examination rate.
mean gonadal dose per examination.
function of future children.
The severity of radiobiological injury is clearly dependent upon the: - Answer-specific
location of initial radiation interaction
if 3 grams of tissue absorb 300 ergs of x-ray, what is the dose? - Answer-300 rads
The female supply of germ cells are referred to as: - Answer-oocytes
A dose to the skin is most likely a good indicator of the: - Answer-level of dose received
by organs near the point of interest
GSD _______ _______ a prediction of forecast of adverse effects on any individuals or
their unborn child: - Answer-is not
If any upper gastrointestinal examination of a pregnant patient resulted in a total skin
exposure of 5 Roentgens, what is the approximate dose to the fetus? - Answer-100
millirads
Mature spermatozoa are _____ cells in the body. - Answer-quite radioresistant.
Why is the dose reading at a single anatomic point not expressive of the total somatic
effect which may result from exposure due to radiologic examinations? - Answer-doses
are not uniformly distributed throughout the body.
X-ray beam is restricted to anatomical area of interest.
use of protective shielding and/or natural shielding.
DNA is replicated during - Answer-mitosis
Somatic effects produce damage to: - Answer-the irradiated individual
The approximate dose to the fetus of a pregnant patient receiving an exposure of 5
Roentgens is: - Answer-100 millirads
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