Recent

  • Show all results for ""

🎧 New: AI-Generated Podcasts Turn your study notes into engaging audio conversations. Learn more

Untitled Quiz
40 Questions
1 Views

Untitled Quiz

Created by
@IllustriousTabla

Podcast Beta

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What effect do dysrhythmias have on cardiac output (CO)?

  • They have no effect on CO.
  • They decrease CO by altering stroke volume and heart rate. (correct)
  • They only affect heart rate without impacting stroke volume.
  • They increase CO by raising stroke volume.

    • Which of the following correctly describes the function of the semilunar valves?

  • They open with ventricular diastole.
  • They close during ventricular diastole.
  • They open with ventricular systole. (correct)
  • They prevent backflow into the atria.

    • In which part of the heart does unoxygenated blood return through the vena cava?

  • Right ventricle
  • Left ventricle
  • Right atrium (correct)
  • Left atrium

    • What does the P wave on an ECG represent?

    <p>Atrial depolarization</p> Signup and view all the answers

    Which structure in the conduction system is responsible for initiating the heart's electrical impulse?

    <p>SA node</p> Signup and view all the answers

    What does the QRS complex on an ECG indicate?

    <p>Atrial repolarization and ventricular depolarization</p> Signup and view all the answers

    What is the duration of each small square on an ECG paper?

    <p>0.04 seconds</p> Signup and view all the answers

    Which of the following includes the anatomical structure that carries oxygenated blood away from the heart?

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

    How do you calculate the ventricular rate from an EKG strip using the 6 second method?

    <p>Count the number of QRS complexes in a 6-second interval and multiply by 10</p> Signup and view all the answers

    What indicates a regular rhythm in heart measurements?

    <p>R to R intervals vary by less than 0.06 seconds</p> Signup and view all the answers

    Which of the following describes the normal appearance of P waves?

    <p>Rounded and upright</p> Signup and view all the answers

    When assessing P waves, what is one of the questions to ask?

    <p>Are the P waves smooth, rounded, and upright?</p> Signup and view all the answers

    What is the normal duration range for a P wave?

    <p>0.06–0.12 seconds</p> Signup and view all the answers

    What does a PR interval measure?

    <p>The time from the onset of atrial contraction to the onset of ventricular contraction</p> Signup and view all the answers

    How is an irregular rhythm identified?

    <p>Intervals between R waves vary by more than 0.06 seconds</p> Signup and view all the answers

    What is a likely cause for variation in P wave appearance?

    <p>Problem in atrial conduction</p> Signup and view all the answers

    Which condition is NOT a cause of heart palpitations?

    <p>Low blood pressure</p> Signup and view all the answers

    What is the primary goal of rate control treatment for tachyarrhythmias?

    <p>Maintain ventricular rate between 80-100 beats/minute</p> Signup and view all the answers

    Which medication is typically NOT used for rate control in tachyarrhythmias?

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

    Which symptom is associated with heart failure (HF)?

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

    What is unique about atrial flutter compared to other tachyarrhythmias?

    <p>It features sawtooth-shaped flutter waves</p> Signup and view all the answers

    What is a common psychological trigger for palpitations?

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

    What characteristic is typical of tachyarrhythmias?

    <p>Rapid heart rates exceeding normal limits</p> Signup and view all the answers

    Which of the following is a classic sign of cardiac issues related to hypertensive heart disease?

    <p>Dizziness or light-headedness</p> Signup and view all the answers

    What is the typical rate of cardiac output when the SA and AV nodes have failed?

    <p>40 to 100 beats per minute</p> Signup and view all the answers

    Which symptom may be present due to compromised cardiac output?

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

    What defines a run of ventricular tachycardia?

    <p>A run of 3 or more PVCs</p> Signup and view all the answers

    Which is a characteristic of monomorphic VT?

    <p>Uniform QRS shape and size</p> Signup and view all the answers

    What should not be used for treating ventricular rhythms as they can further reduce heart rate?

    <p>Drugs that suppress ventricular rhythms</p> Signup and view all the answers

    What characterizes torsades de pointes?

    <p>Polymorphic VT with a prolonged QT interval</p> Signup and view all the answers

    Which condition is often well-tolerated and does not usually require treatment?

    <p>AIVR in the setting of acute MI</p> Signup and view all the answers

    What is a common sign of hypoperfusion?

    <p>Mottled skin</p> Signup and view all the answers

    What characterizes asystole in a patient?

    <p>Total absence of ventricular electrical activity</p> Signup and view all the answers

    What is a common cause of Pulseless Electrical Activity (PEA)?

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

    What is the primary initial treatment for a patient presenting with PEA?

    <p>CPR followed by drug therapy</p> Signup and view all the answers

    Which of the following statements about asystole is true?

    <p>P waves may occasionally be present.</p> Signup and view all the answers

    What distinguishes asystole from ventricular fibrillation (VF)?

    <p>Asystole has no visible electrical activity.</p> Signup and view all the answers

    In which scenario is the prognosis-patient with asystole considered very poor?

    <p>Patient has end-stage heart disease.</p> Signup and view all the answers

    Which of the following conditions can lead to PEA?

    <p>Tension pneumothorax</p> Signup and view all the answers

    How should asystole be confirmed in a patient?

    <p>By assessing the rhythm in more than one lead</p> Signup and view all the answers

    More Quizzes Like This

    Untitled Quiz
    6 questions

    Untitled Quiz

    AdoredHealing avatar
    AdoredHealing
    Untitled Quiz
    37 questions

    Untitled Quiz

    WellReceivedSquirrel7948 avatar
    WellReceivedSquirrel7948
    Untitled Quiz
    19 questions

    Untitled Quiz

    TalentedFantasy1640 avatar
    TalentedFantasy1640
    Untitled Quiz
    36 questions

    Untitled Quiz

    PatriLavender avatar
    PatriLavender
    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser