Cardiac 1

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Questions and Answers

Which factor can create premature beats and arrhythmias due to inadequate oxygenation?

  • Drugs
  • Sympathetic stimulation
  • Ischemia (correct)
  • Electrolytes imbalance

Which condition can be associated with anxiety, hyperthyroidism, and congestive heart failure, leading to a fast heart rate?

  • Electrolytes imbalance
  • Sympathetic stimulation (correct)
  • Ischemia
  • Bradycardia

Which electrolytes are crucial for proper heart function?

  • K+ & Mg+
  • K+ & Na+
  • Mg+ & Calcium (correct)
  • Ca2+ & Cl-

What effect does bradycardia have on the heart?

<p>Slows down the heart rate (B)</p> Signup and view all the answers

Which of the following drugs can cause prolonged QT syndrome leading to arrhythmias?

<p>Quinolones (C)</p> Signup and view all the answers

In hypertensive patients, which factor can contribute to the development of dysrhythmias?

<p>Stretching of the heart (A)</p> Signup and view all the answers

During hypoxia, what can happen to the heart's rhythm if oxygenation is inadequate?

<p>Premature beats and arrhythmias can occur (B)</p> Signup and view all the answers

Which type of dysrhythmia involves a premature impulse originating at the AV nodal area before the next normal sinus impulse reaches the AV node?

<p>'Premature Junctional Contraction (PJC)' (B)</p> Signup and view all the answers

In a junctional rhythm, what is the ventricular rate range?

<p>40-60bpm (B)</p> Signup and view all the answers

What is a common characteristic of a junctional rhythm on an EKG strip?

<p>Regular rhythm with inverted P wave (A)</p> Signup and view all the answers

Which treatment method is recommended for stable ventricular tachycardia?

<p>150mg/100mL D5W over 10 minutes (A)</p> Signup and view all the answers

What is the main reason PVCs (Premature Ventricular Contractions) can cause?

<p>Heart palpitations (D)</p> Signup and view all the answers

Which condition is characterized by a rate above 100bpm, regular rhythm, and wide QRS on an EKG strip?

<p>Ventricular Tachycardia (C)</p> Signup and view all the answers

What treatment is recommended for ventricular asystole?

<p>CPR and epinephrine every 3-5 minutes (B)</p> Signup and view all the answers

What occurs if lidocaine or amiodarone is used to treat idioventricular rhythm?

<p>'R on T' phenomenon triggering VFIB (C)</p> Signup and view all the answers

'Wanchebac' is associated with which type of second-degree AV block?

<p>'Longer PRI' phenomenon of Type 1 AV Block (D)</p> Signup and view all the answers

'Bottom beating at 40bpm' is associated with which type of heart block?

<p>'No coordination between P and QRS' of Third Degree Heart Block (A)</p> Signup and view all the answers

'All impulses run through the AV node making it slower than usual.' This statement describes which conduction abnormality?

<p>First Degree AV Block (A)</p> Signup and view all the answers

What is the term for a premature impulse that originates at the AV nodal area before the next normal sinus impulse reaches the AV node?

<p>Junctional Rhythm (B)</p> Signup and view all the answers

Which of the following conditions can lead to dysrhythmias due to stretching the heart over time?

<p>Hypertension (C)</p> Signup and view all the answers

In dysrhythmia management, which type of drugs can cause arrhythmias like prolonged QT syndrome?

<p>Antibiotics (B)</p> Signup and view all the answers

Which electrolyte is crucial for proper heart function and can contribute to dysrhythmias if imbalanced?

<p>Calcium (Ca2+) (D)</p> Signup and view all the answers

What effect does sympathetic stimulation have on the heart, potentially leading to dysrhythmias?

<p>Stimulates the heart to beat fast (A)</p> Signup and view all the answers

Which factor, if neglected, can cause premature beats and arrhythmias due to inadequate oxygenation?

<p>Ischemia (D)</p> Signup and view all the answers

What role does bradycardia play in dysrhythmias?

<p>Slows down heart rate (A)</p> Signup and view all the answers

What is the expected ventricular rate range in a junctional rhythm?

<p>40-60bpm (D)</p> Signup and view all the answers

What is a characteristic of idioventricular rhythm on an EKG strip?

<p>Heart rate of 20-40bpm (D)</p> Signup and view all the answers

In treating stable Ventricular Tachycardia, what is the recommended medication dosage of Amiodarone given directly via IV push?

<p>300mg (D)</p> Signup and view all the answers

Which conduction abnormality presents with all impulses running through the AV node, causing slower conduction?

<p>First-degree AV block (D)</p> Signup and view all the answers

What is the outcome if Lidocaine or Amiodarone is used to treat Idioventricular Rhythm?

<p>Risk of Ventricular Asystole (B)</p> Signup and view all the answers

What characterizes Third-Degree Heart Block in terms of the coordination between P waves and QRS complexes?

<p>No coordination between P waves and QRS complexes (B)</p> Signup and view all the answers

What is the main reason why Premature Ventricular Contractions (PVCs) can cause issues?

<p>Potential for R on T phenomenon (B)</p> Signup and view all the answers

'Wanchebac' pattern is associated with which type of Second-Degree AV Block?

<p><strong>Type 1 - Wenchback</strong> (D)</p> Signup and view all the answers

'Asystole' pattern in Ventricular Asystole is characterized by what EKG feature?

<p><strong>Flatline with absent QRS</strong> (A)</p> Signup and view all the answers

What should be checked before pronouncing a patient dead in Ventricular Asystole?

<p>Two EKG leads for confirmation (B)</p> Signup and view all the answers

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