Questions and Answers
What occurs in a dissecting aortic aneurysm?
What occurs during angina pectoris?
Myocardial oxygen demand exceeds the supply
What causes cardiogenic shock following AMI?
Decreased pumping force of the heart muscle
Deoxygenated blood from the body returns to the:
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In contrast to the sympathetic nervous system, what does the parasympathetic nervous system do?
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Most patients are instructed by their physician to take up to _______ doses of nitroglycerin before calling EMS.
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Narrowing of the coronary arteries due to a buildup of fatty deposits is called:
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Prior to attaching the AED to a cardiac arrest patient, the EMT should:
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Why is the AED MOST advantageous to the EMT?
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Where does the electrical impulse generated by the heart originate?
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The iliac arteries immediately subdivide into the:
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What is the MOST common reason many people experiencing AMI do not seek immediate medical attention?
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The right coronary artery supplies blood to the:
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Upon arriving at the residence of a patient with a possible cardiac problem, what is MOST important?
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When documenting a patient's description of his or her chest pain or discomfort, the EMT should:
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When preparing to obtain a 12-lead EKG, where should the 'LL' and 'RL' electrodes be placed?
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What blood vessel transports oxygenated blood?
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What is a common medication given to patients with chest pain to prevent clots?
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What is a common observation in right-sided heart failure?
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Nitroglycerin usually relieves anginal chest pain within ___ minutes.
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Study Notes
Aortic Aneurysm and Angina Pectoris
- A dissecting aortic aneurysm results from separation of the aorta's inner layers.
- Angina pectoris is a condition where myocardial oxygen demand is greater than supply.
Cardiogenic Shock and Blood Circulation
- Cardiogenic shock after an acute myocardial infarction (AMI) stems from reduced pumping capacity of the heart.
- Deoxygenated blood is returned to the right atrium from the body.
Nervous System Functions
- The parasympathetic nervous system functions in opposition to the sympathetic nervous system by slowing both heart and respiratory rates.
Nitroglycerin and Atherosclerosis
- Physicians generally advise patients to take up to three doses of nitroglycerin before contacting emergency medical services.
- Atherosclerosis refers to the narrowing of coronary arteries due to fatty deposits accumulation.
AED Usage and Cardiac Electrical Activity
- EMTs should dry a patient's chest if wet before applying an Automated External Defibrillator (AED).
- The AED's primary advantage is its ability to quickly deliver defibrillation to individuals with ventricular fibrillation.
- The heart's electrical impulses originate from the sinoatrial node.
Arterial Supply and Patient Behavior
- The iliac arteries branch directly into the femoral arteries.
- A common barrier to seeking immediate medical help during an AMI is patient denial.
Coronary Arteries and Scene Assessment
- The right coronary artery is responsible for supplying blood to the right ventricle and the inferior wall of the left ventricle.
- When responding to a possible cardiac issue, prioritizing scene safety is crucial.
Patient Communication and Monitoring
- EMTs should document a patient's chest pain using their exact words for accuracy.
- For a 12-lead EKG, place the "LL" and "RL" electrodes on the thighs or ankles.
Blood Vessels and Medications
- Pulmonary veins are responsible for transporting oxygenated blood back to the heart.
- Aspirin is commonly administered to patients experiencing chest pain to assist in clot prevention.
Heart Failure Indicators
- Right-sided heart failure is frequently indicated by dependent edema.
- Nitroglycerin typically alleviates anginal chest pain within about five minutes.
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Description
This quiz covers key concepts related to cardiovascular conditions such as aortic aneurysm, angina pectoris, and cardiogenic shock. It also addresses the roles of the nervous system in cardiovascular health and practices such as AED usage. Test your understanding of these critical medical topics.
