RAD Final

What radiolucency is #1 pointing to?

• the nasopharyngeal air space

• the palatoglossal air space

The pink arrow is pointing to the:

• styloid process

• hyoid bone

Use the image below to choose which box corresponds with which anatomical landmark:

In the figure below the black arrow is pointing to what radiopacity?

• the lamina propria

• The lamina dura

Radiograph A was taken first and a black circle was noted. A second radiograph (B) was taken and the PID was positioned more superiorly than the first radiograph. What is the position of the anamoly causing the black circle?

• Lingual

• Buccal

In the image below, the radiolucency above tooth #5 is most likely what? (ignore the arrow)

• a periapical abscess

• the nasal cavity

After developing a panoramic radiograph you notice a radiopaque band is obscuring the maxillary teeth apices and that a reverse smile line is present. What is your error?

• Chin positioned too far up

• Chin positioned too far down

"Bremsstrahlung" occurs at:

X-ray intensity (I), like light, is related to its distance (D) from the source. This is expressed as the inverse square law and is formulated as:

I (original)            (D) squared Original

___________   =  __________________

I (new)                     (D) squared New

If the distance from the source to the object is doubled, the intensity of the x-ray beam at the new distance (D) would be:

• One ninth the original distance

• One fourth the original distance

To compensate for slight movement that results from Parkinson's Disease tremors, the radiographer can adjust the exposure settings to:

• Increase the mA and decrease the impulses

• Decrease the mA and increase the impulses