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ACLS > Antiarrhythymics > Flashcards

Antiarrhythymics Flashcards

1
Q

The antiarrhthymic that slows conduction from the SA node to accessory/purkinje fibers?

A

Amiodarone

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2
Q

What might you see if you gave your patient less than 0.5 MG of atropine IV?

A

Paradoxical bradycardia

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2
Q

Two antiarrhythmic medications that a provider might order to treat pulseless ventricular fibrillation or VTACH?

A

Amiodarone and lidocaine

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3
Q

What is the average half-life of amiodarone (Cordarone)?

A

40-61 days

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4
Q

What slows the rate of the SA node impulse formation, therefore, this medication might be ordered when a patient is in Torsades De Pointe?

A

Magnesium Sulfate

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5
Q

What medication is used to terminate SVT/ AV reentrant tachycardia?

A

Adenosine

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6
Q

A baseline ECG must be completed and the QT and QTc must be calculated, approved by provider prior to initiating this medication?

A

Dofetilide (tikosyn)

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7
Q

Where can you find the calculation to determine QTc?

A

Lexidrug

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8
Q

After giving a dose of Tikosyn, when should you repeat the EKG?

A

2-3 hours after

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9
Q

What steps must be taken if your patient missed more than 1 dose of tikosyn?

A

Notify provider, time restarts.

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10
Q

Which specialty must initiate/reinitiate Tikosyn?

A

Cardiologist

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11
Q

A patient on a maintenance dose of Tikosyn is admitted to the hospital for cellulitis. Must they be admitted to tele?

A

Yes, for HR and rhythm monitoring

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12
Q

Major side effect of Deofetilide (Tikosyn)?

A

Torsades de pointes

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13
Q

Why is it important to measure the QTc prior to giving Tikosyn?

A

Make sure the QT isn’t too long.

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14
Q

What are the actions of Tikosyn?

A

Converts AFIB and AFlutter to sinus, prolongs repolarization, and maintenance of NSR.

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15
Q

This patient is given their third dose of Dofetilide (Tikosyn), and the QT interval measurement is 0.55 seconds, what should you do next?

A

Hold med, call cardiologist.

16
Q

My patient just converted to NSR after receiving Tikosyn, how long do they need to be observed before they can be discharged and why?

A

12 hours after to monitor the QT intervals.

17
Q

You just decreased your patients dose from 250 mcg to 125 mcg, how long will they need to continuous cardiac monitoring?

A

Additional 6 doses/3DAYS OR 12 hours after NSR

18
Q

Antiarrhythmic requires peak and trough levels to monitor for toxicity and could be ordered to control ventricular heart rate for a patient diagnosed with HF?

A

Digoxin

19
Q

The antidote medication requires continuous cardiac monitoring during infusion and, for not less than, 24 hours following infusion?

A

Digoxin immune (digifab)

20
Q

What could happen if patient receives two antiarrhythmyic medications?

A

Pro-Arrhythmias

21
Q

What medication increases the SA and AV nodal automaticity and AV conduction to treat bradycardia?

A

Atropine sulfate

22
Q

Side effects of atropine?

A

Tachycarida, Ventricular arrhythmia, afib, HA, dry mouth, dilated pupils.

23
Q

What will your patient feel like after adenosine?

A

BAD

24
Q

What symptoms would a patient experience when receiving lidocaine (xylocaine)?

A
  • CNS - agitation and anxiety
  • GI
  • Hypotension
  • Dizzy and confused (because it passes the BBB)
25
Q

What is the dose guideline for dobutamine?

A

Cannot exceed more than 5 mcg/kg/minute in PCU

26
Q

What is the dose guideline for dofetilide (tikosyn)?

A

It can only be given orally

27
Q

What is the dose guideline for Amiodarone?

A

1st dose 300mg, 2nd dose 150mg, IVP for pulseless VT/VF

28
Q

What is the dose guideline for Adensonine?

A

1st dose 6mg, 2nd dose 12 mg with rapid saline flush.

29
Q

What is the dose guideline for lidocaine?

A

1st dose 1-1.5mg/kg, 2nd dose 0.5-0.75mg/kg IVP

30
Q

What is the dose guideline for Magnesium Sulfate?

A

1-2 grams diluted with D5W over 5-60 minutes

31
Q

What is the dose guideline for nitroglycerin paste?

A

Topical ointment 0.5-2 inches

32
Q

What is the dose guideline for atropine?

A

1.0 mg IVP quickly for symptomatic bradycardia.

ACLS (7 decks)

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