Test File 2 Flashcards
- How to increase magnification
a. Decrease receptor to object distance
- What does increasing the source to receptor distance do?
a. Decrease magnification and increase sharpness
- Recommended diameter
a. 2.75 inches
- Natural Background radiation (ionizing) example
a. Radon
- Background radiation example
a. cosmic
- Pregnant individual maximum exposure
a. 500 mRem
- Occupational MPD
a. 50 mSv
- Non-occupational MPD
a. 5 mSv
- The prodromal period effects are
a. Non-lethal
- Which is not a part of acute radiation syndrome
a. Renal
- If the energy/dose thing is higher than an x ray, the absorbed dose is ____ the equivalent dose
a. Less than
- For radiation that has higher quality factor, the equivalent dose will be ____ to the absorbed dose
a. Higher than
- Which uses the tissue sensitivity factor?
a. Effective dose
- What uses the radiation weighting factor?
a. Equivalent dose
- For foreshortening: beam is _____ to the tooth and the receptor and tooth are _____
a. Answer was: not perpendicular (to the tooth), not parallel
i. Tooth and receptor are not parallel
ii. Beam is perpendicular to receptor (not perpendicular to the tooth)
- If the tooth is not parallel to the receptor, and the beam is perpendicular to the tooth, the tooth will appear
a. Longer than the actual size (elongation)
- The latent period in radiation biology is
a. The time between radiation exposure and onset of biological effects
- Effect of radiation to the oral cavity in regards to erupted teeth are
a. Indirect
- What is an example of an indirect effect of radiographs taken in the oral cavity
a. Radiation caries
- Error picture (left hand corner was all blurry and white)
a. Bending
- According to 2012 FDA/ADA recommendations, what radiographs would you take for a new patient?
a. Individualized radiographs based on clinical assessment
- According to 2012 FDA/ADA recommendations, what radiographs would you take for an adult recall patient?
a. Posterior bitewings at 24-36
- Bisecting angle technique is perpendicular to what
a. Neither the tooth or receptor
- Overlapping of contacts occurs due error in what
a. Horizontal angulation
- What would decrease the penumbra of the image?
a. Increasing source to object ratio
- Increasing the source to object distance will
a. Increase sharpness, decrease magnification
- This picture is due to what technical error (whole film was off to the corner, mostly white shown)
a. Not biting on bite block (we thought it was XCP but its not and this was added on discussion board)
- According to the slob rule, when you move the tube head mesially, and the object also moves mesially, where is it located?
a. Lingually
- What is the most lethal part of hematopoietic syndrome?
a. Sepsis
- Which part of acute radiation syndrome has the most severe biological effects?
a. CNS/Cardiovascular Syndrome
- What is true about stochastic effects?
a. Probability of occurrence is proportional to dose
- Image of cone cut, asked which collimator and what caused the cone cut
a. Rectangular; Improper horizontal angulation
- Miss nice lady A got cancer from radiation, but her kids were not affected?
a. Somatic issue
- Which of the following causes increased effects of radiation biology?
a. Increase oxygen and younger age
- On MiCAPS, the mirror option will help fix
a. Plate exposed backwards
- Protocol for taking radiographs on a pregnant patient
a. Indicated for acute, painful dental problems diagnosis only
