Question 1

The physiologic change most likely to lead to an increase in intracranial pressure is cerebral

Accepted Answer

vasodilation.

Answer

respiratory hyperventilation.

Answer

hypernatremia.

Answer

<P> REM sleep.</P>

Question 2

Manifestations of acute brain ischemia (Cushing reflex) are due primarily to parasympathetic

Accepted Answer

sympathetic nervous system activation.

Answer

nervous system activation.

Answer

loss of brainstem reflexes.

Answer

autoregulation of body systems.

Question 3

Which group of clinical findings indicates the poorest neurologic functioning? Spontaneous eye opening, movement to command, oriented to self only

Accepted Answer

Assumes decorticate posture with light touch, no verbal response

Answer

Spontaneous eye opening, movement to command, oriented to self only

Answer

Eyes open to light touch on shoulder, pupils briskly reactive to light bilaterally

Answer

No eye opening, responds to painful stimulus by withdrawing

Question 4

Acceleration-deceleration movements of the head often result in polar injuries in which injury

Accepted Answer

focal injuries occur in two places at opposite poles.

Answer

is localized to the site of initial impact.

Answer

bleeding from venules fills the subdural space.

Answer

widespread neuronal damage is incurred.

Question 5

Secondary injury after head trauma refers to

Accepted Answer

brain injury resulting from the body’s response to tissue damage.

Answer

brain injury resulting from the initial trauma.

Answer

focal areas of bleeding.

Answer

injury as a result of medical therapy.

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