Question 1

Which of the following must always be the first step in protection of the reproductive organs?

Accepted Answer

Adequate and precise collimation of the radiographic beam to include only the anatomy of interest is the first step in protecting the reproductive organs during radiographic procedures. This technique limits the exposure area and reduces unnecessary radiation to surrounding tissues, including the gonads.

Question 2

Which of the following are reasons for unacceptable images?
1)Patient mispositioning
2)Incorrect centering of the radiographic beam
3)Patient motion during the radiographic exposure
4)Incorrect collimation of the radiographic beam

Accepted Answer

All listed reasons (patient mispositioning, incorrect centering of the radiographic beam, patient motion during exposure, and incorrect collimation of the radiographic beam) can lead to unacceptable images in radiography.

Question 3

Reducing the field size to the anatomic features of interest not only reduces patient exposure,but also

Accepted Answer

Reducing the field size to the anatomic features of interest decreases the amount of scatter radiation, which in turn increases the recorded image quality by reducing the amount of scatter that can blur the image or reduce its contrast. Scatter radiation is a form of secondary radiation that occurs when the primary x-rays interact with objects (such as the patient's body) and are deflected in different directions. By limiting the field size, less tissue is irradiated, leading to less scatter and thus clearer images.

Question 4

Because multiple bony areas span the entire body,the radiation dose absorbed by the organ called bone marrow

Accepted Answer

The radiation dose absorbed by the bone marrow cannot be measured by a direct method because multiple bony areas span the entire body, and the bone marrow is distributed throughout the body. Therefore, it can only be estimated based on the dosages received by adjacent tissues.

Question 5

According to the American College of Radiology (ACR),abdominal radiologic examinations that have been requested after full consideration of the clinical status of a patient,including the possibility of pregnancy,need

Accepted Answer

According to the American College of Radiology, if an abdominal radiologic exam is requested after full consideration of the clinical status of a patient, including the possibility of pregnancy, then it does not need to be postponed or selectively scheduled. Therefore, option A is the correct answer. Options B, C, and D are incorrect as they suggest that the exam should be postponed, which is not necessary in all cases.

Question 6

Which of the following is frequently a problem in diagnostic pediatric radiography?

Accepted Answer

Patient motion can be a significant problem in diagnostic pediatric radiography as children are often unable to stay still for long periods of time. This can lead to images that are blurry or otherwise unusable, which can compromise the accuracy of the diagnosis.

Question 7

During a radiographic examination,which of the following combinations of technical exposure factors reduce patient radiation dose?

Accepted Answer

Higher kVp results in more penetration of the x-ray beam, reducing the amount of radiation absorbed by the patient. Lower mAs results in a shorter exposure time, reducing the amount of radiation exposure to the patient. This combination of higher kVp and lower mAs will reduce patient radiation dose while maintaining adequate image quality.

Question 8

According to the U.S.Public Health Service,the genetically significant dose (GSD)for the population of the United States is approximately

Accepted Answer

The answer of According to the U.S.Public Health Service,the genetically...

Question 9

Neglecting to use standardized technique charts necessitates estimating the technical exposure factors,which may result in
1)poor-quality images.
2)repeat examinations.
3)additional and unnecessary exposure of the patient.

Accepted Answer

Neglecting to use standardized technique charts can lead to poor-quality images because the exposure factors may not be optimal for the specific examination. This can necessitate repeat examinations to obtain diagnostic quality images, resulting in additional and unnecessary exposure of the patient to radiation.

Question 10

Which of the following are involuntary motions that cannot be willingly controlled?
1)Chills
2)Tremors
3)Muscle spasms
4)Pain
5)Active withdrawal

Accepted Answer

The answer of Which of the following are involuntary motions...

Question 11

Specific area shielding may be selectively used during some x-ray procedures to protect which of the following?
1)Lens of the eye
2)Breast
3)Upper extremities
4)Lower extremities

Accepted Answer

Specific area shielding is often used to protect sensitive areas such as the lens of the eye and the breast during x-ray procedures to minimize radiation exposure.

Question 12

When a properly calibrated automatic exposure control (AEC)is not employed to obtain a uniform selection of technical x-ray exposure factors,well-managed imaging departments

Accepted Answer

Well-managed imaging departments should have standardized technique charts established for each X-ray unit in their facility. This helps ensure a consistent selection of technical exposure factors and reduces the risk of over- or underexposure. Using technique charts borrowed from another facility or estimating exposure factors for each examination are not optimal solutions as they may result in inconsistent image quality and unnecessary repeat imaging. Having the radiologist determine and set up exposure factor charts may be feasible for smaller facilities, but may not be practical for larger departments with multiple X-ray units and a high volume of patients.

Question 13

Which of the following are areas of the body that should be shielded from the useful beam whenever possible?
1)Lens of the eye
2)Breasts
3)Thyroid gland
4)Reproductive organs
5)All muscle tissues

Accepted Answer

The lens of the eye, breasts, thyroid gland, and reproductive organs are all sensitive to radiation and should be shielded from the useful beam whenever possible. While muscle tissues are not necessarily sensitive to radiation, shielding should still be employed to reduce unnecessary exposure. Choice C includes all of these areas while excluding muscle tissues, making it the best choice.

Question 14

Radiographers must limit the patient's exposure to ionizing radiation by
1)employing appropriate radiation reduction techniques.
2)using protective devices that minimize radiation exposure.
3)selecting radiographic exposures factors that only use low kVp and high mAs

Accepted Answer

Limiting the patient's exposure to ionizing radiation can be achieved by employing appropriate radiation reduction techniques and using protective devices, such as lead aprons and thyroid shields, that minimize radiation exposure. However, selecting radiographic exposure factors that only use low kVp and high mAs is not the best approach as it can lead to unnecessary patient exposure to radiation. The selection of radiographic exposure factors should be based on patient size, anatomy, and pathology, with consideration given to both minimizing patient dose and achieving diagnostic image quality.

Question 15

Motion controlled by will is classified as voluntary motion.Lack of such control may be attributed to which of the following?
1)The patient's age
2)Breathing patterns or problems
3)Physical discomfort
4)Fear of the examination
5)Mental instability

Accepted Answer

All listed factors can affect a patient's ability to control motion voluntarily. Age can impact mobility and control, breathing issues can cause involuntary movements, physical discomfort can lead to uncontrollable reactions, fear can induce involuntary responses, and mental instability can hinder the ability to control movements intentionally.

Question 16

Which of the following are considered to be benefits of an aggressive repeat analysis program?1.Increased awareness among staff and student radiographers of the need to produce optimal quality recorded images from the start.
2)Radiographers become more careful in producing radiographic images because they are aware that images are being reviewed.
3)When the repeat analysis program identifies problems or concerns,in-service education programs covering these specific topics may be designed for imaging personnel.

Accepted Answer

All three benefits listed are considered advantages of an aggressive repeat analysis program. By reviewing and analyzing repeat radiographs, staff and student radiographers become more aware of the importance of producing high-quality images from the start. Knowing that their work will be reviewed also motivates radiographers to exercise greater care when producing images. Additionally, when problem areas or concerns are identified, in-service education programs can be designed to address these issues and improve the skills of imaging personnel.

Question 17

Which of the following types of gonadal shielding provide maximal gonadal protection for a male patient when AP,oblique,and lateral projections are obtained?

Accepted Answer

A shaped contact shield containing 1 mm of lead is the best choice as it provides maximal gonadal protection for male patients when AP, oblique, and lateral projections are obtained. The shaped contact shield is custom-fitted to the patient's anatomy, providing better coverage of the gonads than a flat contact shield or shadow shield. The 1 mm of lead provides adequate radiation attenuation while minimizing scatter radiation to the patient. It is important to note that gonadal shielding is necessary for male patients of all ages to reduce the risk of genetic mutations and cancer.

Question 18

When a pregnant patient must undergo a radiographic procedure,which of the following practices will minimize radiation exposure?

Accepted Answer

Selecting technical exposure factors that are appropriate for the part of the body to be radiographed will ensure that the patient receives the lowest possible radiation dose while still obtaining diagnostic-quality images. Precisely collimating the radiographic beam to include only the anatomic area of interest and shielding the lower abdomen and pelvis when this area does not need to be included in the area to be irradiated will protect the developing fetus from unnecessary radiation exposure. Therefore, the best choice is both A and C.

Question 19

Any image that must be performed more than once because of human or mechanical error during the production of the initial image is considered to be a repeat image.What effect does a repeat image have on the radiation dose received by the patient?

Accepted Answer

A repeat image will result in the patient receiving an additional radiation dose. Depending on the location of the repeat image, the skin and possibly the gonads (if they are in the imaged area) can receive a double radiation dose. Therefore, it is important to minimize the need for repeat images through proper technique and communication with the patient.

Question 20

________________________ are the sensing devices most often used to measure skin dose directly.

Accepted Answer

Thermoluminescent dosimeters (TLDs) are the most common sensing devices used to directly measure skin dose. TLDs can be placed directly on the skin or on the surface of the garment, allowing for accurate measurement of skin dose received during radiation therapy or other medical procedures.

Quiz 12: Management of Patient Radiation Dose During Diagnostic X-Ray Procedures

Which of the following must always be the first step in protection of the reproductive organs?

Which of the following are reasons for unacceptable images? 1) Patient mispositioning 2) Incorrect centering of the radiographic beam 3) Patient motion during the radiographic exposure 4) Incorrect collimation of the radiographic beam

Reducing the field size to the anatomic features of interest not only reduces patient exposure,but also

Because multiple bony areas span the entire body,the radiation dose absorbed by the organ called bone marrow

According to the American College of Radiology (ACR) ,abdominal radiologic examinations that have been requested after full consideration of the clinical status of a patient,including the possibility of pregnancy,need

Which of the following is frequently a problem in diagnostic pediatric radiography?

During a radiographic examination,which of the following combinations of technical exposure factors reduce patient radiation dose?

According to the U.S.Public Health Service,the genetically significant dose (GSD) for the population of the United States is approximately

Neglecting to use standardized technique charts necessitates estimating the technical exposure factors,which may result in 1) poor-quality images. 2) repeat examinations. 3) additional and unnecessary exposure of the patient.

Which of the following are involuntary motions that cannot be willingly controlled? 1) Chills 2) Tremors 3) Muscle spasms 4) Pain 5) Active withdrawal

Specific area shielding may be selectively used during some x-ray procedures to protect which of the following? 1) Lens of the eye 2) Breast 3) Upper extremities 4) Lower extremities

When a properly calibrated automatic exposure control (AEC) is not employed to obtain a uniform selection of technical x-ray exposure factors,well-managed imaging departments

Which of the following are areas of the body that should be shielded from the useful beam whenever possible? 1) Lens of the eye 2) Breasts 3) Thyroid gland 4) Reproductive organs 5) All muscle tissues

Radiographers must limit the patient's exposure to ionizing radiation by 1) employing appropriate radiation reduction techniques. 2) using protective devices that minimize radiation exposure. 3) selecting radiographic exposures factors that only use low kVp and high mAs

Motion controlled by will is classified as voluntary motion.Lack of such control may be attributed to which of the following? 1) The patient's age 2) Breathing patterns or problems 3) Physical discomfort 4) Fear of the examination 5) Mental instability

Which of the following types of gonadal shielding provide maximal gonadal protection for a male patient when AP,oblique,and lateral projections are obtained?

When a pregnant patient must undergo a radiographic procedure,which of the following practices will minimize radiation exposure?

Any image that must be performed more than once because of human or mechanical error during the production of the initial image is considered to be a repeat image.What effect does a repeat image have on the radiation dose received by the patient?

________________________ are the sensing devices most often used to measure skin dose directly.