16 Questions
What is the primary function of the cardiovascular system?
To deliver oxygenated blood and nutrients to cells in the body
What causes acute myocardial infarction (AMI)?
Sudden narrowing or complete occlusion of a coronary artery
What is the role of the paramedic in treating patients with cardiovascular disease (CVD)?
Integrate pathophysiologic principles and assessment findings to formulate a field impression and implement a treatment plan
What is cardiac arrest?
Cessation of cardiac mechanical activity confirmed by the absence of signs of circulation
Which chamber of the heart pumps deoxygenated blood to the lungs?
Right ventricle
What is responsible for cardiac contraction and efficient ejection of blood from the heart?
Myocardium
Which artery is the largest in diameter and shortest of the myocardial blood vessels?
Left main coronary artery (LMCA)
Which artery supplies blood to the anterior surface of the left ventricle in most patients?
Left anterior descending artery (LAD)
Which property of cardiac cells refers to the ability to spontaneously generate an electrical impulse?
Automaticity
Which part of the cardiac conduction system is responsible for slowing the rate of discharge of the SA node?
Atrioventricular node
What effect does stimulation of parasympathetic (inhibitory) nerves have on the strength of atrial contraction?
Weakens
Which part of the heart is sometimes called the 'right heart'?
Right atrium and right ventricle
Which part of the heart is sometimes called the 'left heart'?
Left atrium and left ventricle
What effect does stimulation of sympathetic (accelerator) nerves have on the heart rate?
Increases
Which part of the heart wall comprises mostly thick cardiac muscle tissue?
Myocardium
What is the middle layer of the heart wall?
Myocardium
Test your knowledge of acute myocardial infarction (AMI) and the role of paramedics in providing early treatment with this quiz. Learn about the causes, incidence, and impact of AMI, as well as the vital role paramedics play in responding to this critical medical emergency.
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