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18 Cards in this Set
- Front
- Back
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3 Examples of normal cardiac rhythms
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Normal Sinus Rhythm Sinus Arrhythmia Wandering Atrial Pacemaker |
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Abnormally fast hear rate in dog and cat |
Above 160 (dog) above 220 (cat) |
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Abnormally slow heart rate in dog and cat |
Below 70 (dog) Below 140 (cat) |
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Sinus Arrest |
SA node stops firing |
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First Degree AV Block |
P-R interval greater then .14 seconds |
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Second degree AV block Mobitz type I |
Progressive lengthening of PR interval with intermittent dropped beats |
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Second Degree AV block Mobitz type II |
Sudden dropped QRS without progressive lengthening |
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3rd Degree AV block |
No relation between P and QRS complex |
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3 Things that can cause reentry |
Pathway around heart to long Decreased conduction velocity Shortening of refractory period |
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Supraventricular premature contractions |
Premature beats |
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Tachycardia |
At least 3 or more premature contractions |
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Paroxysmal Tachycardia |
Last for a period and then suddenly stops |
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Fibrillations |
Many separate and small waves spreading at the same time in different directions over the cardiac muscles |
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Atrail Flutter |
Rapid F waves |
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Atrial Fibrillation |
Irregular Ventricular rhythm No distinct P waves Normal looking but irregularly spaced QRS complex |
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Ventricular Premature Contractions |
Wide and bizarre QRS compelxes usually no P waves |
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Ventricular Bigeminy |
VPC every second complex |
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Ventricular Paroxysmal Tachycardia |
3 or more VPCs in a row |
