Radiographic Procedures: Skeletal System Questions and Answers Flashcards
6 cards from real CAMRT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Radiographic Procedures: Skeletal System Questions and Answers flashcards as text
What is the Towne projection of the skull?
Answer: AP axial with 30-degree caudal angle through foramen magnum; occipital bone, petrous ridges, dorsum sellae
AP axial with 30-degree caudal angle demonstrates posterior fossa structures.
Why is a sponge placed under the waist for lateral lumbar spine imaging?
Answer: Aligns the lumbar spine parallel to the detector for uniform vertebral height and open disc spaces
The sponge corrects the natural waist concavity to prevent spinal sagging.
What are the Canadian C-Spine Rules and how do they differ from NEXUS?
Answer: Stepwise clinical decision tool with higher specificity than NEXUS, incorporating mechanism of injury and range-of-motion testing
CCR uses a three-step algorithm achieving higher specificity while maintaining sensitivity.
What is the correct positioning for the AP open-mouth (odontoid) projection?
Answer: Patient opens mouth widely for AP projection through the open mouth to C1-C2, showing dens between C1 lateral masses
The open-mouth view demonstrates the dens of C2 framed between the lateral masses of C1.
How do PA and oblique projections of the hand differ?
Answer: PA is flat on detector; oblique at 45-degree rotation separating the metacarpals
The 45-degree oblique separates overlapping metacarpals.
Initial radiographs are normal for a suspected scaphoid fracture. What is recommended?
Answer: Immobilize and repeat in 10-14 days, or proceed to MRI or CT for earlier detection
Up to 20% of scaphoid fractures are initially occult. Delayed diagnosis risks avascular necrosis.