Flashcards in Review Chart 1 Deck (88)
In what country was the x-ray discovered?
Are x-rays stored in matter?
Do x-rays have an effect on photographic film?
Do some materials fluoresce when exposed to X-rays?
Does focusing the x-ray allow the patient to be exposed less?
What do the initials FFD, TFD, and SID refer to?
Distance between the source of the x-ray and the film
What is the most commonly used dosimeter?
Imagine that you are a wee little photon that has sailed through space at a high rate of speed which has carried you into and out of a patient. What would be the next thing you encounter?
What is the number of electrons controlled by?
Low voltage circuit
Which effect would a smaller anode angle have compared to a larger angle?
It would create a clearer image
What type of wavelength is seen with x-ray?
Short wavelength (gamma) (high frequency)
Of the different types of radiation, which is associated with biological effects?
What contributes the most radiation to a human's annual exposure?
What is helpful in producing a good quality A-P full spine?
Having the anode toward the cervical
Positive beam limitation systems (PBL) would include what?
In checking your collimator, what percentage is the limit for inaccuracy?
What is used to tell us that the x-ray beam is centered to the part being radiographed?
The light and mirror
At a set FFD and film size, the less collimation used the _________ the film will be?
From what does the electron cloud form?
If you've overexposed a film, what should you have done to get a better film?
Used a filter for the part that is overexposed
Federal regulation requires how much filtration for an x-ray machine that operates at 70 kV-100kV?
What material is used for the construction of most compensating filters?
What part of the tube complex allows one to move the tube stand?
When is a fetus the most sensitive to radiation?
When taking an A-P full spine film of a young female patient, what body parts should you be most concerned with?
What is the "ten day rule" concerned with?
Don't x-ray patients during a ten day period from the onset of menses
If a 13 year old walks into your office because they were told by the school nurse they have scoliosis, why would you x-ray them P-A rather than A-P?
It will decrease breast and gonad exposure
If you take a lumbar series on a 7 year old, what does the law about radio sensitivity and metabolic rate prompt you to do?
Put a contact gonad shield on him
A dual focus tube has what characteristic that a single focus tube doesn't?