Which of the following secrete chemicals that produce holes in the membranes of harmful cells but do not have to recognize a specific antigen to start destroying pathogens?
A. Natural killer (NK) cells
B. Major histocompatibility complex (MHC)
C. B cells
D. Cytokines
E. T cells
Answer: A
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A patient who is in cardiac arrest:
A. does not require rescue breathing. B. does not have a pulse and is not breathing. C. should be considered dead after 10 minutes of CPR. D. requires treatment that is beyond the scope of practice of the EMR.
Use the drug label to identify specific drug information in the questions that follow. 
What is the route of administration?
What will be an ideal response?
Patients who have sustained kidney trauma may complain of ____ pain on the side of the injury.
A. neck B. shoulder C. back or flank D. leg
A physician assistant (PA) accused of medical malpractice claims that the charge does not meet all of the elements of the theory of recovery. Which of the following defenses is being used by the PA?
A. denial B. assumption of risk C. comparative negligence D. technical negligence E. contributory negligence