Question To Know Flashcards
1
Q
You are seeing a 45 yo female w/ ongoing substernal chest pain. EKG reveals inferior ST segment elevations with elevations noted in V1 and reciprocal ST depression in I, aVL. The resting membrane potential is -60 mV (Normal = -90 mV). Which of the following happens to the number of sodium channels able to open and the conduction velocity?
A
*number of sodium channels able to open = DECREASED
*conduction velocity = DECREASED
note - conduction velocity is proportional to number of sodium channels
