Dysrhythmias

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  1. Procainamide 

    What drug category does it belong to?
    What dysrhythmias is it indicated for?
    What line of therapy is it?
    • Sodium Channel Blocker
    • For A-Fib & Flutter, PVCs, VTs, V-Fib
    • Second line therapy
  2. This Na Channel Blocker may cause drug-induced lupus syndrome
    Procainamide
  3. Lidocaine 

    What drug category does it belong to?
    What dysrhythmias is it indicated for?
    • Sodium Channel Blocker
    • Ventricular dysrhythmias like PVCs, VTs, V-Fib
  4. Which dysrhythmias do beta blockers treat?
    How do they work?
    What are some nursing interventions?
    Name a few.
    SVTs, A-Fib & Flutter, PVCs

    • Lowers HR, BP, myocardial contractility
    • Slows down AV conduction

    • Watch for hypotention, AV block, bradycardia, HF
    • Choose ones that are cardio selective

    • Metoprolol
    • Atenolol
    • Esmolol
    • Carvedilol
  5. Amiodarone

    What drug category does it belong to?
    What dysrhythmias is it indicated for?
    What are common adverse effects?
    Potassium Channel Blocker

    • A-Fib & Flutter (converts it to NSR)
    • PVCs, VT, V-Fib

    • Pulmonary toxicity
    • Visual changes
    • Thyroid & liver problems
    • Photosensitivity
    • Bluish discoloring of skin
  6. How potassium channel blockers work on the heart?
    • Slows repolarization
    • Prolongs the refractory period
  7. How do sodium channel blockers work on the heart?
    Slows conduction, prolongs repolarization
  8. This class of medication blocks sympathetic receptors to the heart & slows AV conduction
    Beta Blockers
  9. This class of medication decreases automaticity of the SA node & delays AV node conduction
    Calcium Channel Blockers
  10. What are the atrial arrhythmias?
    A-Fib & Flutter, PACs, Junctional Rhythms
  11. Adenosine

    What is it used for?
    How do you give it?
    Paroxysmal SVTs

    • Warm to room temperature
    • Administer IV bolus 6mg (do not dilute)
    • Follow with saline flush
    • Drug has 6-8 second half life (so push fast!)
    • Causes 5-6 seconds of asystole before coming back (they do come back)
    • If not work, give 12mg and try again
  12. Digoxin

    What does it treat?
    What are the signs of toxicity?

    Notify provider if apical is below _____ in an adult
    Atrial dyshythmias

    • Bradyxardia
    • GI issues (NVD)
    • Seeing the halo

    60 bpm
  13. Atropine

    What does it treat?
    What are adverse effects?
    What are contraindications?
    Treats: Bradycardia

    Adverse Effects: BPH, Urinary retention

    Contraindicated: Narrow angle glaucoma
  14. Name some examples of sodium channel blockers
    • Procainamide
    • Lidocaine
    • Disopyramide
    • Propafenone
    • Flecainide
    • Quinidine
  15. Name some examples of potassium channel blockers
    • Amiodarone
    • Dronedarone (Multaq)
    • Sotalol (Betapace, which also has beta blocker properties to it)
  16. _______ is for asystole while _________ is for bradycardia. Route for both is _______
    • Epi (epinephrine)
    • Atropine
    • IVP
  17. Conduction pathway of the conduction of the heart…go!
    • SA Node
    • AV Node
    • Bundle of His
    • L&R Bundle Branches (Left branches into posterior & anterior)
    • Purkinje Fibers
  18. Heart rates of SA, AV, & ventricular pacemaker in bpm
    • SA: 60-100
    • AV: 40-60
    • Ventricular: 20-40
  19. On EKG, the following wave forms represent…

    P, QRS, Ta, T
    • P: Atrial Depolarization
    • Ta: Atrial Repolarization
    • QRS: Ventricular Depolarization
    • T: Ventricular Repolarization 

    Depolarization = Contraction = “the squeeze”

    Repolarization = Relaxation = “the relaxing” 

    Ta Wave is obscured by QRS (not seen on strip)
  20. Normal EKG Intervals for PRI, QRS, & QT
    • QRS: 0.04 - 0.12
    • PRI: 0.12 - 0.20
    • QT: 0.36 - 0.44
  21. What is the absolute refractory period?
    After an action potential initiates, the cardiac cell is unable to initiate another action potential for some duration of time

    (which is slightly shorter than the "true" action potential duration). This period of time is referred to as the refractory period, which is 250ms in duration and helps to protect the heart.
  22. Excitable group of cells that cause premature beats outside normally functioning SA node
    • Ectopic Focus (plural: foci)
    • Also called an ectopic pacemaker
  23. What is the treatment for PACs?
    Isolated PACs are not an issue and are often seen in in the healthy caused by stress, caffeine, cold meds

    Treatment involves removing that cause
  24. What are the treatments for SVTs?
    • If patient is stable…
    • Vagal stimulation
    • Cartoid massage (done by doc)
    • Face in ice bath
    • Ca Channel blockers
    • Digoxin
    • Beta Blockers
    • Adenosine IVP

    • If patient is NOT stable…
    • Cardioversion
  25. What are the pharmaceutical & nonpharma treatments for A-Fib & Flutter? Name the aspects that need treatment.
    • HR Rate Control Treatments
    • Ca Channel Blockers
    • Beta Blockers
    • Digoxin (not as popular anymore) 

    • Rhythm Control Treatments
    • Amiodarone, dronedarone 

    • Anticoagulates
    • TEE to look for clots
    • Cardioversion
    • Pacer if patient is tachy or brady
  26. What are the treatments for Junctional Rhythms?
    • Atropine
    • Pacemaker (if SA node is out of commission)
  27. Define the following…
    Ventricular Bigeminy, Trigeminy, Couplets, Tachycardia
    • Ventricular Bigeminy
    • Every other beat is a PVCVentricular

    • Ventricular Trigeminy
    • Every third beat is a PVC

    • Ventricular Couplets
    • Two consecutive PVCs

    • Ventricular Tachycardia
    • Occurs three or more PVCs are occurring (see notes on VTs)
  28. R on T Phenomenon
    • Occurs when a PVC falls on T wave of a preceding beat
    • Dangerous because it may precipitate v-tach or v-fib
  29. What are the treatments for PVCs?
    Depends on the cause of the PVC

    Correct the underlying cause (caffeine, nicotine, stress, fever, mitral valve prolapse, MI)

    Amiodarone, Lidocaine, Procainamide, Beta Blockers
  30. The QRS of this arrhythmia is wide and bizarre looking
    PVC
  31. What are Unifocal & Multifocal PVCs?
    What do they look on ECG?
    Unifocal PVCs are initiated from same foci & appear alike on EKG

    Multifocal PVCs are initiated from different foci & each have different shapes from each other on EKG
  32. Treatment for V-Tach entails…
    • If patient has a pulse & is stable
    • Amiodarone, Procainamide, Lidocaine, Cardioversion

    • If patient is pulseless
    • V-Tach should be treated as V-Fib
    • “if patient is v-fib, you de-fib”
  33. Patient in V-Fib presents as…
    Unresponsive & in cardio arrestApneic & pulseless
  34. What are the medications given during V-Fib?
    • Epi, vasopressin
    • Amiodarone, Lidocaine, Procainamide
    • Magnesium Sulfate

Card Set Information

Author:
AngelGoosie
ID:
316710
Filename:
Dysrhythmias
Updated:
2016-03-02 01:25:24
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dysrhythmias
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Description:
Dysrhythmias
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