VN02 End of Unit Assessment

Which of the following statements about the Ionizing Radiation Regulations 2017 is FALSE?

• It stipulates that at least one member of the veterinary practice must be designated as an RPA

• It incorporates the concept of ALARA

• It stipulates that Local Rules must be drawn up and followed

• It sets an annual dose limit of 20 mSv to the whole body for employees of at least 18 years of age

Which of the following tissues is the most attenuating?

• Fluid

• Air

• Muscle

• Bone

Which radiography term can be described as the difference in densities seen on an x-ray image?

• Density

• Contrast

• Attenuation

• Penumbra

Which of the following modalities does not fall under the Ionizing Radiation Regulations 2017?

• Computed tomography

• Computed radiography

• Fluoroscopy

• Magnetic Resonance Imaging

Which of the following is not a key feature of x-ray room design?

• Emergency stop button outside of the controlled area

• Warning signs

• Controlled access

• Use of a red warning light which only appears when an exposure is being made

A radiographer decides that he needs to increase the kV he is using from 30 kV to 40 kV. In order to keep radiographic density the same, what must he do to the mAs he is using?

• No change needed

• Halve the mAs

• Double the mAs

• Increase the mAs by 10

Which of the following is FALSE regarding the BVA Elbow Scheme?

• There is no upper age limit for dogs being scored

• The dog does not need to be a recognized breed

• Dogs must be at least 2 years old before being scored

• Extended and flexed medial lateral elbow views must be submitted

Which modality requires the use of a Faraday cage to function correctly?

• Computed tomography

• Computed radiography

• MRI

• Ultrasound

Which of the following techniques would degrade an ultrasound image?

• Clipping the fur of an Alaskan Malamute

• Application of coupling gel to the skin of the patient over the area of interest

• Use of M mode when conducting echocardiography

• Incorporating an air gap technique

Which of the following techniques provides excellent information about physiology but poor anatomical detail?

• Scintigraphy

• MRI

• CT

• DR