ENA Cardio 2 Flashcards
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Questions and Answers

In acute coronary syndrome, which finding is caused by phrenic nerve stimulation?

  • Nausea
  • Diaphoresis
  • Vomiting
  • Hiccups (correct)
  • Which disorder is characterized by ST-segment elevation in all electrocardiogram leads?

  • Right ventricular infarction
  • Hyperkalemia
  • Unstable angina
  • Pericarditis (correct)
  • When determining the severity of a patient's heart failure, which laboratory test provides the most information?

  • Serum B-type natriuretic peptide (BNP) level (correct)
  • Creatinine level
  • Blood urea nitrogen (BUN) level
  • Troponin T level
  • In addition to cardiopulmonary resuscitation, sodium bicarbonate is the treatment for cardiac arrest caused by which disorder?

    <p>Tricyclic antidepressant overdose</p> Signup and view all the answers

    Which statement accurately describes the pathogenesis of atherosclerosis?

    <p>Atherosclerosis causes the thickening of the walls of the aorta.</p> Signup and view all the answers

    After an acute myocardial infarction, which cardiac biomarker returns to baseline last?

    <p>Troponin T</p> Signup and view all the answers

    A patient with electrocardiogram changes in leads V3 and V4 that reflect an infarction is experiencing an injury to which area of the heart?

    <p>Anterior</p> Signup and view all the answers

    Which drug is administered to treat acutely decompensated heart failure?

    <p>Nesiritide (Natrecor)</p> Signup and view all the answers

    Which blood pressure reading is classified as a hypertensive crisis?

    <p>Diastolic pressure of 140 mm Hg</p> Signup and view all the answers

    Which medication is infused to improve cardiac contractility?

    <p>Dobutamine (Dobutrex)</p> Signup and view all the answers

    A blockage of the left anterior descending coronary artery causes the infarction of which part of the left ventricle?

    <p>Anterior wall</p> Signup and view all the answers

    Hyperkalemia-induced cardiac arrest requires which treatment in addition to cardiopulmonary resuscitation?

    <p>Calcium chloride</p> Signup and view all the answers

    For a patient with acute heart failure, which intervention is most appropriate?

    <p>Administer a rapid-acting diuretic, as prescribed.</p> Signup and view all the answers

    After an acute myocardial infarction, which cardiac biomarker is released first?

    <p>Myoglobin</p> Signup and view all the answers

    Which patient with a myocardial infarction is most likely to present with crushing chest pain that lasts longer than 30 minutes?

    <p>A man, age 48</p> Signup and view all the answers

    Which rhythm is a common cause of sudden cardiac arrest?

    <p>Ventricular tachycardia</p> Signup and view all the answers

    Drugs from which category reduce preload and afterload?

    <p>Vasodilators</p> Signup and view all the answers

    Which disorder results from the inflammation, rupture, or erosion of atheromatous plaque in the coronary arteries?

    <p>Acute coronary syndrome</p> Signup and view all the answers

    Paraplegia may be a finding in which disorder?

    <p>Dissecting aortic aneurysm</p> Signup and view all the answers

    Atropine is most likely to restore adequate perfusion in which situation?

    <p>Cholinergic-induced bradycardia</p> Signup and view all the answers

    Study Notes

    • Phrenic nerve stimulation in acute coronary syndrome can lead to hiccups.
    • A notable manifestation in electrocardiograms for pericarditis includes ST-segment elevation across all leads.

    Heart Failure Assessment

    • Serum B-type natriuretic peptide (BNP) level is crucial in evaluating heart failure severity.
    • In acute myocardial infarction, Troponin C returns to baseline last among cardiac biomarkers.

    Treatment for Cardiac Conditions

    • Sodium bicarbonate is administered during cardiac arrest due to tricyclic antidepressant overdose.
    • Acutely decompensated heart failure is treated with Nesiritide (Natrecor) to reduce symptoms rapidly.

    Hypertension

    • A diastolic blood pressure of 140 mm Hg is classified as a hypertensive crisis.

    Coronary Artery Blockages

    • An obstruction in the left anterior descending coronary artery leads to anterior wall infarction in the left ventricle.

    Emergency Response to Cardiac Arrest

    • Hyperkalemia with cardiac arrest requires calcium chloride in addition to standard CPR protocols.
    • Myoglobin is the first cardiac biomarker released after an acute myocardial infarction.

    Patient Presentation of Myocardial Infarction

    • A typical presentation of myocardial infarction includes crushing chest pain lasting over 30 minutes, particularly in middle-aged men.

    Cardiac Rhythms

    • Ventricular tachycardia is a prevalent cause of sudden cardiac arrest.

    Pharmacological Interventions

    • Vasodilators are key in reducing both preload and afterload in patients with heart conditions.
    • Acute coronary syndrome arises primarily from inflammation, rupture, or erosion of atheromatous plaques in coronary arteries.
    • Paraplegia can be associated with a dissecting aortic aneurysm.
    • Cholinergic-induced bradycardia can be effectively treated with Atropine to restore adequate perfusion.

    Other Key Clinical Insights

    • Rapid-acting diuretics are pivotal for managing fluid overload in acute heart failure scenarios.
    • A patient's age, sex, and pre-existing conditions, such as diabetes and hypertension, can influence the manifestation and management of acute cardiac events.

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