A patient who is on a ventilator has been declared brain dead. A ...

[yoooooman]

A patient who is on a ventilator has been declared brain dead. A family member asks the nurse how the heart can still function if his father's brain is dead. What statement is an appropriate response by the nurse?
 
  A) Death of the heart will follow brain death in a few hours.
  B) The heart is controlled by the brainstem, not the upper levels of the brain.
  C) The cardiovascular center in the medulla would not be reflected in any tests.
  D) The heart is self-controlled and does not depend on the brain to beat.

Question 2

Psychosis is a severe mental illness characterized by what?
 
  A) Disordered thought
  B) Increased social interaction
  C) Hypoactivity with aggressiveness
  D) Paranoid hallucinations

[JaynaD87]

Answer to Question 1

D
Feedback:
The heart can generate action potentials on its own and can function without connection to the rest of the body. The heart will continue to function as long as oxygen and glucose are supplied to it. The brain does not initiate heart functioning. The cardiovascular center in the medulla helps to regulate blood pressure, not heart function.

Answer to Question 2

A
Feedback:
Antipsychotic drugs are used mainly for the treatment of psychosis, a severe mental disorder characterized by disordered thought processes; blunted or inappropriate emotional responses; bizarre behavior ranging from hypoactivity to hyperactivity with agitation, aggressiveness, hostility, and combativeness; social withdrawal in which a person pays less-than-normal attention to the environment and other people; deterioration from previous levels of occupational and social functioning (poor self-care and interpersonal skills); hallucinations; and paranoid delusions.

[yoooooman]

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[JaynaD87]

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