The purpose of aluminum filtration is to:
a. absorb the penetrating short wavelengths that fog films unnecessarily.
b. reduce the radiation to the patient by reducing the volume of tissue exposed.
c. eliminate the sources of scatter or secondary radiation to the patient.
d. absorb the less penetrating long wavelengths to reduce radiation exposure.
d. A filter is an absorbing material (usually aluminum) placed in the path of the x-ray beam to remove a high percentage of the soft x-rays (the longer wavelengths) and reduce patient radiation dose.
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Health-related calculators are used for all of the following except
A. basal metabolic rate. B. temperature index. C. body mass index. D. ovulation.
You are performing triage at an industrial accident. Which of the following patients would receive a red tag?
A) A patient who was not injured in the accident but is upset by the accident B) A patient who is breathing 32 times per minute C) A patient who has a laceration for which the bleeding has been controlled D) A patient who has died during the accident
Your patient was in a motor vehicle collision but was not discovered until 3 hours after the event. When you examine her, you discover bilateral discolored skin over the mastoid process. You should suspect:
A) temporal bone fracture. B) frontal bone fracture. C) basilar skull fracture. D) a fractured sinus.
A small rural hospital that provides 24-hour emergency care to stabilize critical patients for transfer to a higher level of care is an example of which of the following?
A) Community access hospital B) Critical access hospital C) Regional trauma center D) Level III treatment center