RHS EXAM PRACTICE EXAM | QUESTIONS AND ANSWERS| VERIFIED AND WELL DETAILED ANSWERS GRADED A+| LATEST UPDATE

RHS EXAM PRACTICE EXAM | QUESTIONS AND ANSWERS|
VERIFIED AND WELL DETAILED ANSWERS GRADED A+| LATEST
UPDATE




Chemical agents should be properly disposed of according to
A. dental office protocol.
B. state and federal recommendations.
C. OSHA and local laws.
D. federal, state and local laws. - CORRECT ANSWER- D. federal, state and
local laws.


Using the ALARA concept as a guideline for radiographs includes all of the
following EXCEPT


A. draping the patient with a thyroid collar.
B. using a circular PID.
C. draping the patient with a lead apron.
D. using a rectangular PID. - CORRECT ANSWER- B. using a circular PID.


Which of the following is most essential when labeling the film mount?
A. Dentist name
B. Patient name
C. Dentist address

,D. Patient address - CORRECT ANSWER- B. Patient name


Which of the following errors occur when the vertical angulation is incorrect?
A. Cone cut
B. Blurred image
C. Elongation
D. Overlapping - CORRECT ANSWER- C. Elongation


Which of the following was established to address the education and certification
of operators of radiographic equipment?
A. Radiation Control for Health and Safety
B. National Council on Radiation Protection and Measurements
C. Consumer-Patient Radiation Health and Safety Act
D. International Commission on Radiation Units and Measurements - CORRECT
ANSWER- C. Consumer-Patient Radiation Health and Safety Act


Which of the following protection techniques is used to minimize x-radiation
exposure to the operator?
A. Structural shielding
B. Wearing a lead line apron
C. Wearing a dosimeter
D. Standing next to the tubehead - CORRECT ANSWER- A. Structural shielding


When changing the 8-inch PID to a 16-inch PID, which of the following is used to
determine the intensity of the beam?

,A. Rule of isometry
B. Inverse square law
C. Exposure chart
D. SLOB rule - CORRECT ANSWER- B. Inverse square law


Once the film has been removed from the protective packet, the dental assistant
should
A. recycle lead foil in separate container.
B. dispose the lead foil in trash.
C. dispose of entire packet in trash.
D. recycle the black paper in separate container. - CORRECT ANSWER- A.
recycle lead foil in separate container.


Before exposing radiographs on a minor, the dental assistant should
A. obtain consent from parent or legal guardian.
B. explain radiographs are mandatory for all patients.
C. explain radiographs are required by insurance.
D. obtain consent from the patient. - CORRECT ANSWER- A. obtain consent
from parent or legal guardian.


Which of the following helps to decrease exposure of the thyroid gland from the
primary radiation beam?
A. Bisecting angle technique
B. Use of round collimation
C. Paralleling technique

, D. Decreasing the x-ray focal plane - CORRECT ANSWER- C. Paralleling
technique


Back-scatter radiation to the film is prevented by the
A. outer wrap.
B. black paper.
C. polysoft wrapping.
D. lead foil. - CORRECT ANSWER- D. lead foil.


Which of the following results in a double image radiograph?
A. Processing two exposed films together
B. Exposing a duplicating film
C. Processing two unexposed films together
D. Exposing the same film twice - CORRECT ANSWER- D. Exposing the same
film twice


The maximum permissible dose (MPD) of ionizing radiation for occupational
exposure is
A. 5.0 rem per year.
B. 0.05 rem per year.
C. 0.5 rem per year.
D. 1.0 rem per year. - CORRECT ANSWER- A. 5.0 rem per year.


Which of the following pathogens is NOT found in oral or respiratory secretions?
A. Mycobacterium tuberculosis