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NURS220 > Exam 1 - Dysrhythmias > Flashcards

Exam 1 - Dysrhythmias Flashcards

1
Q

how to antidysrhythmics work?

A

alter the electrical properties of the heart

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2
Q

what are the two ways that anti-dysrhytmics alter the electrical properties of the heart

A

blocking flow through ion channels (conduction)

altering autonomic activity (automaticity)

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3
Q

what type of drugs treat rhythm control?

A

potassium channel blockers
sodium channel blockers
digitalis

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4
Q

what type of drugs treat rate control

A

calcium and beta blockers

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5
Q

what should we obtain when starting anti-dyssrhythmics

A 
baseline EKG
vital signs
history of HTN
heart failure
MI
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6
Q

what does sodium channel blockers do

A

prevent ventricular depolarization

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7
Q

monitor VS
obtain hepatic, renal, and electrolyte lab values
monitor drug plasma levels during therapy
monitor for changes in ECG
monitor for dry mouth, constipation, and urinary retention
monitor for seizures
obtain med history

A

sodium channel blockers

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8
Q

what happens with beta blockers?

A

decreases rate through the AV node

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9
Q

decreased conduction results in slower HR, decreased contractility, and decreased CO – what drug?

A

beta blockers

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10
Q

what type of dysrhythmias do beta blockers treat

A

atrial

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11
Q

what drugs end in -olol

A

beta blockers

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12
Q

what drug is contraindicated in heart block patients, severe bradycardia, av block and asthma

A

beta blockers

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13
Q 
monitor vitals
watch for hypotension
monitor blood sugar
caution to not immediately stop taking
monitor elderly for cognitive dysfunction/depression/hallucinations
A

beta blockers

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14
Q

these drugs are saved for the worst dysrhytmias

A

potassium channel blockers

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15
Q

amiodarone

A

potassium channel blocker

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16
Q

what does amiodarone treat

A

ventricular and atrial dysrhythmias

17
Q

dofetilie and ibutilide treat what

A

atrial fibrillation and atrial flutter

18
Q

assess for cough and dyspnea
use cautiously with heart block
monitor ECG
monitor for weight gain, decreased urine output, dyspnea and lung crackles

A

potassium channel blockers

19
Q

what do calcium channel blockers do to the nodes

A

slowed impulse thru AV

20
Q

only dysrhythmia treated by calcium channel blockers is

A

supraventriucular dysrhytmias

21
Q

too much heparin?

A

protamine sulfate

22
Q

normal hemoglobin

A

12.5 - 15.5

23
Q

hct

A

36 to 54%
women 36-48
men 40-54

24
Q

platelets

A

150,000-450,000

NURS220 (8 decks)

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