Lecture 64 - Brain Death

Question 1

CN ____ accounts for the Afferent limb of the corneal reflex, while CN ____ accounts for the Efferent limb.

Answer 1

CN V –> Afferent

CN VII –> Efferent

Question 2

Apnea testing relies on the brainstem’s ability to respond to high levels of _____ –> If p____ > ______mmHg OR > ______ above baseline does NOT elicit reflexive breathing, there is irreversible damage to the brainstem.

Answer 2

CO2

pCO2 > 60mmHg

pCO2 > 20mmHg above baseline

Question 3

If there is no evidence of brain function on neurological exam, including apnea test, confirm death with Cerebral _____ _____ study.

Answer 3

Cerebral Blood Flow