Pathology: Dyrshythmia Flashcards

1
Q

What are Ectopic foci?

What is the mechanism that it causes Cardiac dysrhythmia?

A

Can cause *Abnormal automaticity of the heart*

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2
Q

Describe what happens to the P and QRS of a 3° AV Block (complete) heart block?

A
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3
Q
  • What areas of the cardiac electrical conduction pathway are affected when alterations in “Sinus Rhythm” are seen?
  • Are alterations in “Sinus Rhythm” common?
A
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4
Q

What type of Atrial dysrhythmia is shown?

A
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5
Q

What condition can be described as a “polymorphic ventricular tachycardia with a long QT interval” that manifsts as QT elongation followed by Ventricular Tachycardia?

A

Torsades De Pointes

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6
Q

What are the risks and transient symptoms of Torsades De Pointes?

A
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7
Q

What kind of Atrial dysrhythmia is shown?

A
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8
Q

What happens to the PR interval in a 1° AV Block? What kind of treatment is required for it?

A
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9
Q

What kind of Ventricular dysrhythmia is this?

A
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10
Q

What actually is a Premature atrial contraction?

A

If your heart’s electrical system triggers the early or extra beat in the atria, the result is a premature atrial contraction.

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11
Q

What type of heart block is shown?

A
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12
Q

What is “Sick Sinus Syndrome”?

A
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13
Q

What kind of Ventricular dysrhythmia is this?

A
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14
Q

What type of atrial dysrhythmia is shown?

A
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15
Q

What type of atrial dysrhythmia is shown?

A
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16
Q

What type of heart block is shown?

A
17
Q

What mechanism, besides abnormal automaticity, can cause cardiac dysrhythmia?

A
18
Q

Differentiate between Asystole, Arrhythmia, Dysrhythmia, and Ventricular fibrillation,

A
19
Q

What are the main types of heart blocks?

A
  • 1° AV Block
  • 2° AV Block [Mobitz Type I or Wenchebach]
  • 2° AV Block [Mobitz Type II]
  • 3° AV Block (complete)
20
Q

In a 2° AV Block [Mobitz Type I or Wenchebach], what happens to the following

  • PR interval
  • QRS complex
A
21
Q

What are the causes of Torsades De Pointes?

A
22
Q

Give the general causes (not mechanisms) of Dysrhythmia

A
23
Q

What is the common cause for heart blocks?

A
24
Q

What are the three general treatment options for Atrial Dysrhythmia?

A
25
Q

What type of heart block is Lyme disease associated with?

A

3° AV Block (complete)

26
Q

What happens to the PR interval in a 2° AV Block [Mobitz Type II]? Why is this type of heart block especially risky, and how is it treated?

A
27
Q

What kind of heart block is shown?

A
28
Q
  • Do heart blocks cause dysrhythmia?
  • Do they affect CO?
A
29
Q

What kind of Ventricular dysrhythmias is this?

A

Torsades De Pointes

30
Q

What kind of Ventricular dysrhythmia is this?

A
31
Q

What occurs in a Bundle Branch Block?

A
32
Q

What are the 4 main types of Atrial dysrhythmias?

What is a deadly risk of Atrial dysrhythmias?

A
  1. Premature atrial contractions
    • ​​PAC
  2. (Paroxysmal) Atrial tachycardia
    • ​​PAT
  3. Atrial flutter
  4. Atrial fibrillation

PFPF

Risk for Blood Clot Formation

33
Q
  • What are three main types of Ventricular dysrhythmias, and which one is most common?
  • Do they affect cardiac output?
A
  1. Ventricular premature beats aka Premature Ventricular​ Contractions
    • PVC
    • Most common and can progress to Ventricular Fibrillation
  2. Ventricular Tachycardia
  3. Ventricular Fibrillation