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hurtado - Critical Care > cardiac drugs: antiarrhythmics - Beta blockers > Flashcards

cardiac drugs: antiarrhythmics - Beta blockers Flashcards

1
Q

beta blockers block ___ receptors

A

SNS

- beta-1 receptors, decreasing contraction rate of the heart

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2
Q

beta blockers (decrease/increase) contractility

A

decrease

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3
Q

beta blockers cause (bronchoconstriction/bronchodilation)

A

bronchoconstriction

- beta-1 receptors allow dilation - block them, and they can’t dilate

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4
Q

beta blockers cause abnormally (slow/high) HR

A

slow HR

- blocks SNS

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5
Q

beta blockers lose ___ over time

A

effectiveness

- body creates more B-1 receptors as current ones are blocked

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hurtado - Critical Care (41 decks)

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