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Questions and Answers
In computed radiography, if a cassette has not been used for _______ hours, the IR should be erased.
In computed radiography, if a cassette has not been used for _______ hours, the IR should be erased.
48
After myelography, the patient may be taken to _____ for additional studies while contrast is still in the subarachnoid space.
After myelography, the patient may be taken to _____ for additional studies while contrast is still in the subarachnoid space.
CT
How would digit 0 appear on a digital receptor monitor?
How would digit 0 appear on a digital receptor monitor?
white
A scap Y position is used to demonstrate?
A scap Y position is used to demonstrate?
Which of the following are true of radiation-induced mutations? (Select all that apply)
Which of the following are true of radiation-induced mutations? (Select all that apply)
What is the greatest disadvantage of digital imaging?
What is the greatest disadvantage of digital imaging?
Scatter radiation will have the greatest effect on which of these qualities?
Scatter radiation will have the greatest effect on which of these qualities?
Which of the following is a major factor contributing to patients contracting infection while in the hospital?
Which of the following is a major factor contributing to patients contracting infection while in the hospital?
Which of the following will cause visible grid lines on a radiograph that was exposed in a bucky device?
Which of the following will cause visible grid lines on a radiograph that was exposed in a bucky device?
In a busy imaging department, how often should CR imaging plates be cleared?
In a busy imaging department, how often should CR imaging plates be cleared?
In DR, an ADC converts ______ to _____.
In DR, an ADC converts ______ to _____.
As grid ratio increases, patient dose __________?
As grid ratio increases, patient dose __________?
As grid ratio increases, receptor exposure?
As grid ratio increases, receptor exposure?
What can determine if there is any separation of the AC joints?
What can determine if there is any separation of the AC joints?
______ patients should be done first for procedures with fasting and laxatives.
______ patients should be done first for procedures with fasting and laxatives.
Breathing technique for AP and Lateral position of upper airway?
Breathing technique for AP and Lateral position of upper airway?
What shielding should be used while fluoroscopy of an infant during an upper GI?
What shielding should be used while fluoroscopy of an infant during an upper GI?
While using AEC, an increase in KVP will have what effect on the radiograph?
While using AEC, an increase in KVP will have what effect on the radiograph?
S# is determined by dividing ______ by the exposure.
S# is determined by dividing ______ by the exposure.
A BE will expose a patient to _______?
A BE will expose a patient to _______?
What is the best way to stop bleeding?
What is the best way to stop bleeding?
Which of the following affect attenuation of the beam? (Select all that apply)
Which of the following affect attenuation of the beam? (Select all that apply)
Beam restriction will affect?
Beam restriction will affect?
The proximal end of the fibula is a projection called the ____?
The proximal end of the fibula is a projection called the ____?
CT scanograms are used for?
CT scanograms are used for?
Prep for upper GI?
Prep for upper GI?
What is not an accessory organ of the digestive system?
What is not an accessory organ of the digestive system?
Greatest advantage of digital imaging?
Greatest advantage of digital imaging?
Myelography should ONLY be done with what type of media?
Myelography should ONLY be done with what type of media?
Roentgen applies to?
Roentgen applies to?
Which would be an advantage of the air gap technique?
Which would be an advantage of the air gap technique?
What is the main reason most people die during hematopoietic death?
What is the main reason most people die during hematopoietic death?
Asepsis means?
Asepsis means?
Failure to collimate accurately while using AEC may result in a _____ radiograph?
Failure to collimate accurately while using AEC may result in a _____ radiograph?
Automatic rescaling means the values of interest that were determined by the histogram are used to produce digital images with the proper: (Select one)
Automatic rescaling means the values of interest that were determined by the histogram are used to produce digital images with the proper: (Select one)
What is the socket that holds the head of the femur?
What is the socket that holds the head of the femur?
Which of the following would best demonstrate the rectum filled with barium?
Which of the following would best demonstrate the rectum filled with barium?
IR must be overexposed ______ in order to produce saturation?
IR must be overexposed ______ in order to produce saturation?
Only safe solution to clean PSP's is?
Only safe solution to clean PSP's is?
A patient restraint?
A patient restraint?
Fluoroscopy units cannot exceed how many R/min according to the NCRP?
Fluoroscopy units cannot exceed how many R/min according to the NCRP?
Most common site for measuring pulse?
Most common site for measuring pulse?
After BE, you notice the sheets have fecal matter and blood on them, what should be done with the sheets?
After BE, you notice the sheets have fecal matter and blood on them, what should be done with the sheets?
A patient in the first stages of shock will display?
A patient in the first stages of shock will display?
Field positioning light and the actual radiation field cannot vary by more than what % of SID?
Field positioning light and the actual radiation field cannot vary by more than what % of SID?
Which of the following positions/projections best demonstrates the esophagus filled with barium?
Which of the following positions/projections best demonstrates the esophagus filled with barium?
A flat panel detector is exposed with nothing between the tube and detector. The pixel reading of 5 different ROI across the detector are averaged and compared - what quality control test was performed?
A flat panel detector is exposed with nothing between the tube and detector. The pixel reading of 5 different ROI across the detector are averaged and compared - what quality control test was performed?
Cycles per second or hertz is the unit of measurement for?
Cycles per second or hertz is the unit of measurement for?
What is it called when part of the patient's bronchial tree is blocked, causing a partial collapse?
What is it called when part of the patient's bronchial tree is blocked, causing a partial collapse?
How much should the patient be rotated for an RPO position during IVU?
How much should the patient be rotated for an RPO position during IVU?
Which of the following is not a beam-restricting device? (Select one)
Which of the following is not a beam-restricting device? (Select one)
Which of the following long-term effects to ionizing radiation is considered the most common?
Which of the following long-term effects to ionizing radiation is considered the most common?
What is the most effective means of protection?
What is the most effective means of protection?
DICOM grayscale standard display function?
DICOM grayscale standard display function?
2 general cells in the human body?
2 general cells in the human body?
Which will demonstrate the right sternoclavicular joint?
Which will demonstrate the right sternoclavicular joint?
A lateral projection of the T spine requires a breathing technique of at least how many seconds?
A lateral projection of the T spine requires a breathing technique of at least how many seconds?
Which of the following will best demonstrate the right sternoclavicular joint?
Which of the following will best demonstrate the right sternoclavicular joint?
Which of the following would increase the signal to noise ratio?
Which of the following would increase the signal to noise ratio?
To prevent shape distortion, which of the two elements must be parallel?
To prevent shape distortion, which of the two elements must be parallel?
The congressional federal register requires the exposure switch for a fluoroscopic unit must be a deadman type. What does the deadman switch require?
The congressional federal register requires the exposure switch for a fluoroscopic unit must be a deadman type. What does the deadman switch require?
What is the name of the imaginary line drawn between the outer canthus and the EAM?
What is the name of the imaginary line drawn between the outer canthus and the EAM?
If the SID is 40 and the OID is 8, what is the magnification factor?
If the SID is 40 and the OID is 8, what is the magnification factor?
Non-ionic, water-soluble iodinated contrast media?
Non-ionic, water-soluble iodinated contrast media?
Which of the following positions is used to demonstrate foreign bodies in the hand?
Which of the following positions is used to demonstrate foreign bodies in the hand?
The margin of error a radiographer has in setting his/her technical factors and still obtaining a diagnostic quality image is known as what? (Select one)
The margin of error a radiographer has in setting his/her technical factors and still obtaining a diagnostic quality image is known as what? (Select one)
AP weight-bearing knees are ordered to demonstrate which of the following pathologies?
AP weight-bearing knees are ordered to demonstrate which of the following pathologies?
If a digital imaging system can record 10 lines per millimeter, what is its spatial resolution?
If a digital imaging system can record 10 lines per millimeter, what is its spatial resolution?
To demonstrate the greater tubercle of the humerus, which of the following would be correct?
To demonstrate the greater tubercle of the humerus, which of the following would be correct?
Which of the following are best demonstrated in the oblique position of the lumbar spine?
Which of the following are best demonstrated in the oblique position of the lumbar spine?
A patient suddenly has difficulty breathing; what is the first thing a radiographer must do?
A patient suddenly has difficulty breathing; what is the first thing a radiographer must do?
Where should the CR be located for an AP projection of the shoulder joint?
Where should the CR be located for an AP projection of the shoulder joint?
Where should the central ray be directed for an AP projection of the knee joint?
Where should the central ray be directed for an AP projection of the knee joint?
Medications include which of the following? (Select all that apply)
Medications include which of the following? (Select all that apply)
Which of the controls on the control panel adjusts the autotransformer?
Which of the controls on the control panel adjusts the autotransformer?
Where should the CR enter for an AP projection during an operative cholangiogram?
Where should the CR enter for an AP projection during an operative cholangiogram?
Which of the following devices is designed to attenuate all secondary radiation originating under the table during fluoroscopy?
Which of the following devices is designed to attenuate all secondary radiation originating under the table during fluoroscopy?
The term intrathecal refers to an injection into which of the following anatomical areas? (Select one)
The term intrathecal refers to an injection into which of the following anatomical areas? (Select one)
Which of the following publications represents limits of exposure to ionizing radiation?
Which of the following publications represents limits of exposure to ionizing radiation?
Which of the following positions/projections will best demonstrate the distal tibfib joint?
Which of the following positions/projections will best demonstrate the distal tibfib joint?
To reduce the risk of causing leukemia, which of the following anatomical parts should be shielded from radiation exposure whenever possible?
To reduce the risk of causing leukemia, which of the following anatomical parts should be shielded from radiation exposure whenever possible?
Which of the following positions used to demonstrate the sternum?
Which of the following positions used to demonstrate the sternum?
Beam filtration of 2.5 mm Al equivalent reduces the skin entrance dose by how much?
Beam filtration of 2.5 mm Al equivalent reduces the skin entrance dose by how much?
With digital imaging, radiographers can avoid the possibility of repeats by overexposure to the patient. This practice is referred to as?
With digital imaging, radiographers can avoid the possibility of repeats by overexposure to the patient. This practice is referred to as?
A dose of whole body radiation that will kill 50% of the exposed individuals within 60 days is referred to as: (Select one)
A dose of whole body radiation that will kill 50% of the exposed individuals within 60 days is referred to as: (Select one)
Which of the following types of primary radiation cannot be produced at tube potentials less than 70 keV?
Which of the following types of primary radiation cannot be produced at tube potentials less than 70 keV?
Tissue is more sensitive to radiation when irradiated under which of the following conditions?
Tissue is more sensitive to radiation when irradiated under which of the following conditions?
Which of the following should be done to reduce OID on a PA projection of the wrist?
Which of the following should be done to reduce OID on a PA projection of the wrist?
Which of the following is a post-processing option to decrease the amount of noise in a digital image?
Which of the following is a post-processing option to decrease the amount of noise in a digital image?
The 4th cervical vertebra lies at the level of which of the following topographical landmarks?
The 4th cervical vertebra lies at the level of which of the following topographical landmarks?
Fuji's cassette-based system uses a sensitivity (S) number to determine if the proper exposure was received by the imaging plate. If 200 is the ideal number, what number would indicate the plate was exposed to twice the necessary radiation? (Select one)
Fuji's cassette-based system uses a sensitivity (S) number to determine if the proper exposure was received by the imaging plate. If 200 is the ideal number, what number would indicate the plate was exposed to twice the necessary radiation? (Select one)
Which of the following helps prevent oxidation of the developer?
Which of the following helps prevent oxidation of the developer?
Which of the following is not a fundamental property of the x-ray beam?
Which of the following is not a fundamental property of the x-ray beam?
While using a C-arm, fluoroscopic unit, which of the following will reduce radiation exposure to the patient the most? (Select one)
While using a C-arm, fluoroscopic unit, which of the following will reduce radiation exposure to the patient the most? (Select one)
Which of the following refers to the quality of the x-ray beam?
Which of the following refers to the quality of the x-ray beam?
Patients from different cultural groups may have different?
Patients from different cultural groups may have different?
The distal end of an endotracheal tube should be placed ______ superior to the carina?
The distal end of an endotracheal tube should be placed ______ superior to the carina?
Which of the following definitions describes the effective dose limit?
Which of the following definitions describes the effective dose limit?
What is the rounded process on the proximal lateral aspect of the femur called?
What is the rounded process on the proximal lateral aspect of the femur called?
For the lateral position of the L5-S1 junction, the CR enters on the MCP at a point?
For the lateral position of the L5-S1 junction, the CR enters on the MCP at a point?
Study Notes
Computed Radiography
- Cassettes should be erased after 48 hours of non-use to maintain image quality.
Myelography
- After myelography, a patient may be taken for a CT scan for further studies.
Digital Imaging
- Digit '0' appears as white on digital receptor monitors.
- The greatest disadvantage of digital imaging is its limited spatial resolution, particularly in recording small objects.
Imaging Techniques
- A scapular Y position visualizes anterior or posterior dislocations of the humerus.
- To determine separation of AC joints, an upright patient holding weights is necessary.
- For upper airways, a slow, deep inspiration is required in AP and lateral positioning.
Radiologic Physics
- Scatter radiation primarily affects image contrast by fogging the image.
- Increasing the grid ratio leads to a proportional increase in patient dose and a decrease in receptor exposure.
Infection Control
- Poor health is a major factor in hospital-acquired infections, highlighting the need for careful patient monitoring.
Grid and Exposure
- Visible grid lines on a radiograph occur if a bucky device is not selected.
- CR imaging plates in busy departments should be cleared monthly to avoid image degradation.
Radiation Safety
- Exposure from a barium enema (BE) is approximately 10 mSv.
- The NCRP limits fluoroscopy units to a maximum of 10 R/minute to ensure patient safety.
- Effective radiation protection strategies include distance, proper shielding, and beam filtration.
Patient Care and Procedures
- Direct pressure is the most effective method for stopping bleeding.
- Debilitated patients, including the elderly and children, should be prioritized for procedures requiring fasting and laxatives.
Anatomy and Positioning
- The socket for the femur head is known as the acetabulum; the proximal end of the fibula is termed the apex.
- The greater tubercle of the humerus is best demonstrated with the hand in a supinated position.
Quality Control in Radiography
- Uniformity in digital detectors is evaluated by comparing pixel readings across different regions.
- Exposure latitude defines the margin of error acceptable for obtaining diagnostic-quality images.
Patient Interaction
- Differences in attitudes towards health, illness, and language skills should be considered when interacting with patients from various cultural backgrounds.
Miscellaneous
- The distal end of an endotracheal tube should be placed 5 cm superior to the carina for proper positioning.
- Leukemia is the most common long-term effect of ionizing radiation exposure.
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Description
Test your knowledge of key terms and concepts in computed radiography with these flashcards. Each card presents a critical question regarding radiology practices and definitions. Perfect for students and professionals looking to reinforce their understanding in the field.
