Radiology Midterm Review

Which of the following is NOT a use of a dental image?

Which of the following statements is true regarding the DIRECT theory of radiation injury?

Which radiation occurs in the tubehead from a high speed electron hitting the target at the anode?

A device used to hold and align intraoral sensors in the mouth is

Radiation is defined as a form of energy carried by waves or streams of particles.

The SI equivalent of the rem is

The current MPD of occupationally exposed persons is _________/year.

What affects the quantity of electrons?

The traditional unit of dose is called

Cellular injuries following the latent period may include...

What heating element effects the number of electrons generated to produce x-rays?

A 6 year old is in for a 6 month recare. He had bwxs taken last visit. He had fillings last visit. What should you do?

A high-speed electron dislodges an inner-shell electron from the tungsten atom causing a rearrangement of the electrons

What degree is acceptable for receptor placement if a patient has a shallow mouth?

The higher the kVp..... the more shades of gray.....the longer the scale.....results in low contrast.

Which of the following does NOT cause ionizing radiation?

The anode

The paralleling technique must use an 8 inch cone to prevent magnification.

Which of the following is the MOST important advantage of the paralleling technique?

Inherent filtration in the dental xray tubehead

What is an influencing factor of density?

Which of the following helps the dental radiographer position the PID in relation to the tooth and the sensor?

Which of the following would result in the lowest absorbed dose for the patient from a 20 image FMS?

What specific mechanism of radiation injury may result in the formation of hydrogen peroxide when absorbed by the pt?

The _________ functions to dissipate the heat away from the tungsten target.

Which of the following cells would be the most sensitive to xrays?

When taking bitewing images it is important the sensor be......

The milliamperage (mA) controls the _____________.

Density is the overall whiteness of an image.

What are the advantages of using bisecting technique?

The federal goverment regulates the manufacture and installation of dental xray equipment.

What is responsible for the acceleration of the electrons to the Anode?

Which of the following activates the machine to produce xrays?

William Crookes discovered that cathode rays in the vacuum tubes were streams of charged particles.

Dentulous adult recare patients at an increased risk for caries should have posterior bitewing examinations.....

Which item is responsible for restricting the size of the x-ray beam?

Edmund Kells exposed the first dental radiograph in the US using a live person.

Which of the following is the least sensitive to xrays?

What types of cells are more sensitive to radiation?

Nonstochastic biologic effects from radiation have a dose threshold.