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Dysrhythmias Part 2 Test Questions with 100% Complete Solutions, Rated to Pass $13.99   Add to cart

Exam (elaborations)

Dysrhythmias Part 2 Test Questions with 100% Complete Solutions, Rated to Pass

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  • Course
  • Dysrhythmias
  • Institution
  • Dysrhythmias

Premature Ventricular Contractions (PVC): Cause - cORRECT sOLUTION - Not harmful with normal heart - In heart disease pts. PVCs reduce CO and lead to angina and HF depending on frequency - Associated with stimulants: caffeine, alcohol, nicotine, aminophylline, epinephrine, isoproterenol, digoxin...

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  • August 5, 2024
  • 13
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Dysrhythmias
  • Dysrhythmias
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Dysrhythmias Part 2 Test Questions with
100% Complete Solutions, Rated to Pass
Premature Ventricular Contractions (PVC): Cause - cORRECT sOLUTION - Not
harmful with normal heart
- In heart disease pts. PVCs reduce CO and lead to angina and HF depending on
frequency
- Associated with stimulants: caffeine, alcohol, nicotine, aminophylline,
epinephrine, isoproterenol, digoxin, electrolyte imbalances, hypoxia, fever,
exercise, and emotional stress.


Heart diseases associated with PVC include... - cORRECT sOLUTION - MI
- mitral valve prolapse
- HF
- CAD


Treatment of PVC (only if symptomatic) - cORRECT sOLUTION - Correct cause
= assess the patient
- If electrolyte abnormality like low potassium = give potassium
- Anti-dysrhythmics


If they have a lot of PVC... - cORRECT sOLUTION Chemistry panel to make sure
electrolytes are all okay (potassium, magnesium, sodium, calcium)


Ventricular Tachycardia - cORRECT sOLUTION - Myocardial cells in the
ventricle take over as pacemaker
- Sustained or non-sustained

, - Considered *life-threatening* b/c decreased CO and the possibility of
deterioration to V. fib


a run of three or more PVCs defines... - cORRECT sOLUTION Ventricular
Tachycardia
- 150 to 250 beats/minute.


Venticular Tachycardia is associated with... - cORRECT sOLUTION - MI, mitral
valve prolapse, CAD, cardiomyopathy, CNS disorders, electrolyte imbalances,
long QT syndrome, drug toxicity,
- Precipitating causes must be identified and treated (hypotension, ischemia)


VT with pulse (stable) treated with... - cORRECT sOLUTION antidysrhythmics


- Drugs that prolong the Q-T interval should be d/c
- Cardioversion is used if drug therapy is ineffective


VT with pulse (unstable) treated with... - cORRECT sOLUTION cardioversion
- shock at the QRS
- don't shock during vulnerable QT interval


Pulseless VT treated with... - cORRECT sOLUTION - CPR and rapid
defibrillation
*Call a CODE!*


→→followed by vasopressors (epinephrine) and antidysrhythmics (amiodarone) if
defibrillation is unsuccessful

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