Lecture 10 - Arrhythmia Flashcards

1
Q

Arrhythmia

A

Abnormal heart rate or rhythm
Heart beats too quickly, too slowly, or with an irregular pattern.

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2
Q
A
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3
Q

Rate

A

distance between the consecutive QRS complexes are altered

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4
Q

Rhythm

A

regularity or spacing of the ECG waves are altered

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5
Q
A
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6
Q

Abnormalities in Rate

A

Tachycardia
Bradycardia

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7
Q
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8
Q
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9
Q

Regular rhythm

A

Coordination between atrial & ventricular contractions

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10
Q

Irregular rhythm

A

Contractions may no longer be coordinated

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11
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12
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13
Q
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14
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15
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16
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17
Q
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18
Q

Arrhythmias:
Symptoms

A
  • Palpitations (feeling of pounding heart)
  • Dizziness
  • Fainting (syncope)
  • Shortness of breath
19
Q

Arrhythmias:
Treatment

A
  • Medication – reduce heart rate
  • Anticoagulation drugs – blood clots
  • Pacemakers
  • Implantable defibrillators
20
Q

Cardiac arrest

A

Cessation of all electrical signals in the heart
* Can happen during anesthesia
* Myocardial disease or arrhythmias
* CPR
* Electrical defibrillation
* Pacemaker