WorksheetsRadiation Hazards
Total questions: 16
Worksheet time: 9mins
The indirect effect of cell damage is ... direct effect
more common than
less common than
as common as
Full mouth radiographs are equal to ...
0.0005 R
0.0004 R
5 rem
0.5 rem
55% of natural background radiation is present in ...
(a)
... effect occurs by chance
Deterministic
Stochastic
Somatic
Genetic
Effects increase in severity with increasing dose above threshold in ...
Deterministic effect
Stochastic effect
Somatic effect
Genetic effect
In stochastic effect, even one photon could cause a change in DNA that leads to cancer or heritable effect
True
False
Radiation-induced cancer is an example of ...
Deterministic effect
Stochastic effect
Somatic effect
Genetic effect
Exposures greater than 50 Gy usually causes ...
death
mucositis
radiation-induec cancer
leukemia
The most radioresistant cells are ...
neurons
thyroid
stomach
muscles
The damaging effects of most concern in dentistry is ...
Somatic Stochastic
Somatic Deterministic
Genetic Stochastic
Genetic Deterministic
Males are more radiosensitive than females
True
False
Following the ALARA principle, a radiograph can be taken before clinical examination
True
False
The PID of choice should be ... long
8 inches
16 inches
20 inches
24 inches
The operator should stand at least ... feet away from the patient
6
5
11
135
If the patient can't support the film with his fingers, the dentist can hold it for him
True
False
A device that measures exposure to ionizing radiation.
(a)
