Thrombolytic therapy with recombinant tissue plasminogen ...

[strangeaffliction]

Thrombolytic therapy with recombinant tissue plasminogen activator (rtPA) is now recommended for the management of ischemic stroke if administration can be instituted within how many hours of onset of stroke symptoms?
 
  a. 1
  b. 4
  c. 6
  d. 10

Question 2

Testing of extraocular eye movements assesses
 
  a. pupillary response to light.
  b. function of the three cranial nerves of the eye.
  c. the ability of the eyes to accommodate to a closer moving object.
  d. the oculocephalic reflex.

[abro1885]

Answer to Question 1

B
National guidelines for the management of stroke are based on the results of the National Institute of Neurologic Disorders and Stroke rtPA Stroke Study. This study demonstrated that administration of recombinant tissue plasminogen activator within 3 hours of onset of the stroke was an effective and safe therapy for ischemic stroke. This time frame has now been expanded from 3 to 4.5 hours.

Answer to Question 2

B
Control of eye movements occurs with interaction of three cranial nerves: oculomotor (III), trochlear (IV), and abducens (VI).