Cardiology Flashcards
What are the three layers of the heart?
Epicardium
Myocardium
Endocardium
What artery supplies the left atria?
left circumflex
What artery supplies the right atria?
right coronary
what does automaticity mean?
if left without input a single cardiac cell will contract rhythmically at a steady rate
What does excitability mean?
refers to the ease with ehich cardiac cells indergo a series of events.
What does conductivity mean?
the intrinsic ability of the cardiac cells to conduct electrical impulses.
what does contractility mean?
the ability for the heart uscle to contract to a given length.
What is normal stroke volume?
60-130 cc’s per beat in the average adult
What is “MAP”?
mean arterial pressure
How do you calculate a “map”
{(2x diastolic)+ systolic} / 3
What does the OLDCAAAR mnemonic stand for?
Onset Location Duration Character Activity Aggravating factors Alleviating factore Radiation
What is the most common presenting complain in elderly patients with Acute Coronary symtoms?
Dyspnea
What is a “True aneurysm”?
a aneurysm that involves all three layers of the blood vessal.
What is a “False aneurysm”?
an aneurysm contained by the 2 outer layer of the blood vessal wall and clot.
What is a “Dissection”?
seperation of the vessel wall which allows blood to leak between the layers of the vessal.