PATIENT CARE
Assault means:
Threatening the patient or causing the patient to be apprehensive.
The vertebra prominens corresponds to the level of:
C7
The amount of radiation transferred to the body as the primary beam passes through is known as what?
Attenuation
What is the maximum speed of filament electrons as they travel toward the anode?
The speed of light.
The focusing cup is located at the:
Cathode.
Chest drainage system should always be kept.
Below the level of the chest.
Whats the CR angle for AP axial projection of the lumboscaral junction?
30-35 degree cephalad.
What are the three "Cardinal Principles of Radiation Protection" ? Which has the greatest effect?
Distance, Time, and shielding. Distance.
mAs directly controls?
Quantity of x-rays produced.
What type of current is required for proper operation of the X-rays?
Direct.
Unintentional misconduct is also called:
Negligence.
A radiograph of an AP axial (towne method) projection for a cranium reveals that the posterior arch of C1 is projected within the foramen magnum. The dorsum seller is superimposed on the posterior arch as well. What is the positioning error(s)?
Overangulation of the CR or too much head flexion.
Minimum "source to skin" or "source to table top" distances for (1) fixed fluoroscopic equipment __ , (2) mobile fluoroscopic equipment ___.
(1) 15 inches. (2) 12 inches.
The relationship between kVp and density is:
Direct but not proportional. Density is directly proportional to mAs.
A patient with a foreign body in palm of hand enters Emergency room. Which specific positions should be used to locate the foreign body?
PA and lateral extension.
Which condition may occur after injection of an iodinated contrast agent?
Anaphylaxis.
A patient with a trauma injury enters the ER with an evident Colles fracture.Which positioning routine should be used to determine the extent of injury?
AP and lateral forearm projections to include the wrist.
Which personnel dosimeter is most accurate?
OSL
Which of the following grid errors would result in an image that shows normal density on the sides and may follow removal and replacement of the grid?
Upside down because rays can only get through the middle of the grid.
When using a 30 degree caudad angle for an AP axial (town method) protection of the skull, which positioning line should be perpendicular to the image receptor?
OML
Resondeat superior means:
"Let the master answer"
What is the major disadvantage of performing a straight PA projection for facial bones, with no CR angulation or neck extension, as compared with outer PA facial bone projection?
Dense petrous pyramids superimpose the orbits obscuring facial bone structure.
Damage to the cells being irradiated is called :
Somatic effects.
A primary advantage of digital fluoroscopy is:
Postprocessing provides for maximum manipulation of the image.
In the waters projection of the sinuses where is the petrous ridges placed?
Petrous ridges below Maxilary sinus.