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NUR 326 (Patho 1) > Cardiac Pharmacology (Rate and Rhythm) (Exam 3) > Flashcards

Cardiac Pharmacology (Rate and Rhythm) (Exam 3) Flashcards

1
Q

Rate and Rhythm Control

A

Beta Blockers

Calcium Channel Blockers

Amiodarone

Adenosine

Atropine

Dofetilide

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2
Q

amiodarone: MOA

A

Prolong the action potential in all cardiac tissues

Blocks alpha-and beta=adrenergic receptors in the SNS

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3
Q

amiodarone: Super effective for which dysrhythmias

A

PSVT

AFib

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4
Q

amiodarone: Adverse Effects

A

thyroid alterations
corneal microdeposits
fat deposits

Pulmonary toxicity = fatal in 10% cases

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5
Q

amiodaron: BBW

A

Pulmonary toxicity

Hepatotoxicity

Proarrhythmic effects

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6
Q

Amiodarone: Drug interactions

A

Digoxin and warfarin increase INR

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7
Q

Amiodarone: Half life

A

Long half life last in system many days. Can take 2-3 months for them to fully go away

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8
Q

amiodarone: Contraindications

A

Severe bradycardia and heart blocks

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9
Q

Symptomatic Sinus Bradycardia Drug

A

Atropine

VAGAL INDUCED BRADYCARDIA

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10
Q

Atropine: class

A

anticholindergic

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11
Q

atropine: MOA

A

Poisons the vagus nerve; inhibits postganglionic acetylcholine receptors and direct vagolytic action

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12
Q

How is Atropine given

A

IV push only for bradycardia; 1mg every 3-5 minutes, 3g max

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13
Q

Atropine: Adverse Effects

A

Xerostomia (dry mouth)

Blurry vision

Photophobia

Flush

Hot Skin

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14
Q

Atropine: Nursing Implicaitons

A

Cardiac monitoring, if does not work, give second dose

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15
Q

Drug used for PSVT and Sinus Tach

A

Adenosine

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16
Q

Adenosine: MOA

A

Slows the conduction time through the AV node

17
Q

Adenosine: NSG consideration

A

Very short half life (multiple doses)

Causes short burst of asystole until sinus rhythm returns

ONLY GIVEN IV

18
Q

Adenosine: Given

A

6mg IVP, if have not converted give 12 mg IVP, can give 3rd time 12 mg IVP

Always follow with rapid normal saline flush or 2 saline flushes

3 way stop cock

19
Q

Dofetilide: Class

A

Antidysrhythmic

20
Q

Dofetilide: MOA

A

Blocks the cardiac ion channel carrying potassium current

Conversion from afib/aflutter to NSR

21
Q

Dofetilide: Indication

A

Conversion off afib/aflutter to NSR

Can be taken permanently

22
Q

Dofetilide: Side effects

A

TORSADES

SVT

23
Q

Dofetilide: NSG considrations

A

Maintenance drug but is started in hospital with ECG due to risk of Torsades

Do not give to patients with long QT intervals or other drugs that prolong OT interval

24
Q

What drug do you give for PSVT

A

Adenosine

Push quickly because of short half life

6mg , 12 mg 3rd 12mg

25
Q

What drug do you give PSVT, RVR, or Afib

A

Amiodarone

NUR 326 (Patho 1) (62 decks)

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