Questions and Answers
The electrical impulse generated by the heart originates in the:
Which of the following signs is commonly observed in patients with right-sided heart failure?
Deoxygenated blood from the body returns to the:
A dissecting aortic aneurysm occurs when:
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Signs and symptoms of a hypertensive emergency would MOST likely be delayed in patients who:
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Angina pectoris occurs when:
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A patient tells you that he has a left ventricular assist device (LVAD). Which of the following conditions should you suspect that he has experienced?
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You and your partner arrive at the scene of a middle-aged man who collapsed about 5 minutes ago. He is unresponsive, apneic, and pulseless. Bystanders are present, but have not provided any care. You should:
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A 66-year-old female with a history of hypertension and diabetes presents with substernal chest pressure of 2 hours' duration. Her blood pressure is 140/90 mm Hg, her pulse is 100 beats/min and irregular, her respirations are 22 breaths/min, and her oxygen saturation is 92%. The patient does not have prescribed nitroglycerin, but her husband does. You should:
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When preparing to obtain a 12-lead ECG, the 'LL' and 'RL' electrodes should be placed:
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Study Notes
Heart Function and Electrical Activity
- The sinoatrial (SA) node generates electrical impulses that initiate heartbeats.
- Deoxygenated blood from the body returns to the right atrium of the heart.
Heart Failure Indicators
- Right-sided heart failure commonly causes dependent edema, which results in swelling in lower extremities.
Aortic Aneurysms
- A dissecting aortic aneurysm occurs due to separation of the inner layers of the aorta, creating a false lumen.
Hypertensive Emergencies
- Patients with chronic hypertension may have delayed signs and symptoms in a hypertensive emergency situation.
Angina Pectoris
- Angina pectoris occurs when the myocardial oxygen demand surpasses its supply, indicating a need for better blood flow or oxygen delivery.
Left Ventricular Assist Device (LVAD)
- Patients with an LVAD typically have a history of acute myocardial infarction (heart attack).
Cardiac Arrest Response
- In cases of unresponsive, apneic, and pulseless patients, immediate high-quality CPR should be started, and AED pads should be applied as soon as possible.
Chest Pressure and Emergency Care
- For a patient with substernal chest pressure lasting 2 hours, administer oxygen, give 324 mg of aspirin, and assess further, especially with a history of hypertension and diabetes.
12-Lead ECG Electrode Placement
- The "LL" and "RL" electrodes for a 12-lead ECG should be placed on the thighs or ankles, ensuring proper monitoring of cardiac electrical activity.
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Description
Test your knowledge on critical concepts from Chapter 16 of EMT training with these flashcards. Each card presents a question related to cardiac functions and conditions, essential for understanding emergency medical response. Perfect for both students and professionals looking to refresh their knowledge.
