Who developed the hot cathode ray tube?
What will be an ideal response?
In 1913, William David Coolidge, working for General Electric Company, designed the hot cathode tube in which the tube and high-voltage transformer were placed in an oil-filled compartment that acted as a radiation shield and electrical insulator.
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If a severely injured patient who will likely not survive is identified as being an organ donor, the paramedic:
A) must keep the patient warm to keep his or her organs viable. B) must determine whether or not the patient is legally brain dead. C) should recall that severe trauma disqualifies a patient as a donor. D) should contact medical control for guidance as to how to proceed.
What error was probably made if red cells are seen when attempting to manually count white blood cell (WBCs) on a hemocytometer?
a. The Unopette was not mixed before charging the hemocytometer. b. Diluent was squeezed out and lost when filling the Unopette. c. The wrong dilution was made. d. The Unopette was not allowed to sit for 10 minutes for complete red blood cell (RBC) lysis.