Fast Facts Flashcards
(41 cards)
Most of the blood flow to the coronary arteries occurs during…
Diastole
Breathing patterns do or do not affect blood flow?
They do not affect blood flow.
Threshold cholesterol levels?
240mg/dl
an ECG with ST elevation in V2, V3 and V4 suggests….
An anterior wall MI
An ECG with ST elevation in leads II, III, and aVF suggests…
Occlusion of the right coronary artery
The right coronary artery supplies…
The right ventricle
First step in adult victim CPR?
Compressions (not breaths)
Outermost layer of the heart is called
The epicardium
The epicardium is made up of…
Squamous epithelial cells overlying connective tissue
The middle layer of the heart is called the
The Myocardium
The myocardium is made up of…
It’s job is to…
Striated muscle fibers - cause the heart to contract
It forms most of the heart wall
The innermost layer of the heart is called the…
Endocardium.
Troponin levels are detectable how soon after an MI?
Within 1 hour
What can lactate dehydrogenase isoenzymes tell you?
Whether there’s been myocardial injury
A fourth heart sound can be caused by
HTN or increased atrial contraction
An anterior wall MI can result in a decrease in the function of ________
The left ventricle
Pulmonic and tricuspid valve malfunction lead to…
…right heart failure
Most common complication of MIs?
Arrythmias d/t oxygen deprivation
Second most common complication of MIs?
Heart failure (pump fails)
Can JVD result from an aortic aneurysm?
What about a pneumothorax?
No to both
How to assess JVD?
HOB inclined 15-30 degrees.
Centimeter ruler to measure the distance to the point of highest pulsation.
Does the radial pulse accurately depict the heart rate?
It can, but it can also be affected by cardiac and vascular disease, so the apical pulse is most accurate.
Function of the aortic valve?
Prevents backflow from aorta into left ventricle
Function of the pulmonic valve?
Prevents backflow from the pulmonary artery into the right ventricle