05-30-2007, 11:47 AM
A 66 year old man with extensive coronary artery atherosclerotic disease has evidence of coronary vasoconstriction and myocardial ischemia
the most likely causes of the vasoconstriction is failure of the endothelial cell layer of the diseased coronary arteries to produce a substance with which of the following actions ?
a.-activation of Na channels
b.-closure of K channels
c.-opening L-type Ca channels
d.-stimulation of ATP accumulation
e.-stimulation of cyclic GMP accumulation
the most likely causes of the vasoconstriction is failure of the endothelial cell layer of the diseased coronary arteries to produce a substance with which of the following actions ?
a.-activation of Na channels
b.-closure of K channels
c.-opening L-type Ca channels
d.-stimulation of ATP accumulation
e.-stimulation of cyclic GMP accumulation
