Random Flashcards
What is not considered a risk factor for sudden death?
Diabetes
The amount of resistance that must be overcome by the left ventricle during systole is called?
Afterload
The pressure in the left ventricle at the end of diastole is called?
Preload
A drug that blocks the muscarinic receptors in the peripheral nervous system would be classified as a?
Parasympatholytic
What is not considered a modifiable risk factor for coronary artery disease?
Gender
What does not affect cardiac output?
Blood viscosity
The SA and AV nodes are often supplied by both the ______ and _____ arteries.
Right coronary and circumflex
Slowing of the electrical impulse at the AV node is necessary to allow time for the _____ to fill with blood.
Ventricles
Excessive preload over time would lead to?
Weakening of the left ventricle
Release of acetylcholine at the neuroeffector Junction of the autonomic nervous system results in?
Negative chronotropic effect
A positive dromotropic agent will?
Increase the speed of impulse conduction through the myocardium
What is the least likely cause of PEA?
Electrocution
What is not effected by a properly working pacemaker?
Ejection fraction
____ is a drop in systolic blood pressure of more than 10 mmHg with inspiration.
Pulsus Paradoxus
What ECG finding is LEAST anticipated in a patient experiencing an acute myocardial infarction?
Osborn wave
Increased ______ would NOT provide compensation in carcinogenic shock.
Parasympathetic tone
What condition is most likely to be related to unequal blood pressures in the upper extremities?
Thoracic aortic aneurysm
A decrease in preload results in a decrease in?
Cardiac output
An early sign of hyperkalemia is?
Tall, peaked T waves on an ECG
Myocardial ischemia results in what rhythm on an ECG?
ST segment depression with or without T wave inversion
The predominate effect of a drug with primarily alpha properties would result in?
Vasoconstriction
What is the most serious characteristic of PVCs?
R on T phenomenon
A patient with WPW may experience dysrhythmias secondary to a disturbance in what conduction pathway?
Bundle of Kent
Without careful management a patient with WPW may degrad into what lethal dysrhythmia?
Ventricular fibrillation
Medications best suited for treating broncoconstriction generally stimulate?
Beta 2 receptor sites
