The immune response begins with the exposure of the body to a(n) ____, which is any foreign substance that can induce an immune response.
A. antigen
B. allergen
C. antibody
D. globulin
Answer: A
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What effect does the sympathetic nervous system have on the heart in cases of hypoperfusion?
A. It increases the speed and strength of contractions. B. It makes the heart less responsive to medication. C. It slows the speed and decreases the strength of contractions. D. It makes the heart more likely to fail.
When blood accumulates between the brain and the dura mater, what is the result?
A) Subdural contusion B) Epidural hematoma C) Epidural contusion D) Subdural hematoma
Compression of a 2.0-L manual resuscitator bag is not moving the patient's chest. Possible causes include which of the following?
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What is the current definition of weaning success as it pertains to PMV patients?
A. the ultimate removal of the endotracheal or tracheostomy tube B. applying short periods of mechanical ventilation after 2 days of spontaneous breathing C. No definition of successful weaning has been formulated for this patient group. D. complete removal from ventilation for 7 consecutive days