pathology question from webpath

[md90]

A 53 year old male suffers a cardiac arrest and his wife calls paramedics, who arrive a few minutes later and begin resuscitative measures. A regular heart rate is established after about 40 minutes of resuscitative efforts as he is being transported to the hospital. A thrombolytic agent is administered, but the following process occurs in the myocardium at that time:

A. Apoptosis
B. Free radical injury
C. Heterophagocytosis
D. Squamous metaplasia
E. Accumulation of cytokeratins

















Free radical injury, why? The ischemia during the cardiac arrest followed by reperfusion established following successful resuscitation will generate activated oxygen species to produce free radical injury.

(Question taken from webpath.com)

[IMG SURVIVOR]

very interesting

very nice