Which control serves to protect a patient from overexposure and protect the tube from damage?
mAs timer
mA station
backup timer
density setting
backup timer
Rationale: The backup timer is crucial to ensure that a patient is protected from overexposure and to protect the x-ray tube in result of AEC failure.
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At a public 911 center meeting, a concerned woman asks if voice over Internet protocols (VoIP) can be used to access the community emergency operations center. You would inform her that:
A) Internet providers are encouraged to provide 911 access, but are not required by law. B) Internet providers are required to provide their own 911 service to subscribers. C) Internet providers must provide a callback number and location of the 911 call. D) Internet providers are required to provide medical instructions prior to arrival of EMS.
Nonsteroidal antiinflammatory drugs (NSAIDs) are used to
a. relieve depression. b. treat moderate pain. c. reduce seizure activity. d. induce sleep.
The addition of sufficient Fe3+ to saturate iron binding site of transferrin is referred to as which of the following?
A. Total iron binding saturation B. Unsaturated iron binding capacity C. Serum transferrin saturation D. Total iron index
The EOA is a disposable tube; its structure consists of an opening at the proximal (top) end, many small holes near the upper end, and a(n) _______________.
Fill in the blank(s) with the appropriate word(s).