Cardiac 1

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35 Questions

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

Ischemia

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

Sympathetic stimulation

Which electrolytes are crucial for proper heart function?

Mg+ & Calcium

What effect does bradycardia have on the heart?

Slows down the heart rate

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

Quinolones

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

Stretching of the heart

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

Premature beats and arrhythmias can occur

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

'Premature Junctional Contraction (PJC)'

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

40-60bpm

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

Regular rhythm with inverted P wave

Which treatment method is recommended for stable ventricular tachycardia?

150mg/100mL D5W over 10 minutes

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

Heart palpitations

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

Ventricular Tachycardia

What treatment is recommended for ventricular asystole?

CPR and epinephrine every 3-5 minutes

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

'R on T' phenomenon triggering VFIB

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

'Longer PRI' phenomenon of Type 1 AV Block

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

'No coordination between P and QRS' of Third Degree Heart Block

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

First Degree AV Block

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?

Junctional Rhythm

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

Hypertension

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

Antibiotics

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

Calcium (Ca2+)

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

Stimulates the heart to beat fast

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

Ischemia

What role does bradycardia play in dysrhythmias?

Slows down heart rate

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

40-60bpm

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

Heart rate of 20-40bpm

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

300mg

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

First-degree AV block

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

Risk of Ventricular Asystole

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

No coordination between P waves and QRS complexes

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

Potential for R on T phenomenon

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

Type 1 - Wenchback

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

Flatline with absent QRS

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

Two EKG leads for confirmation

Test your knowledge on the causes of dysrhythmia by remembering the mnemonic 'HISDEBS' which stands for Hypoxia, Ischemia, Sympathetic stimulation, Drugs, Electrolytes, Bradycardia, and Stretch. Understand how each factor can contribute to abnormal heart rhythms.

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