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Cardiovascular > Beta Agonists > Flashcards

Beta Agonists Flashcards

1
Q

What are the effects of beta agonists?

A

increases HR and force - increases CO - increases work of heart - increases oxygen consumption - heart uses oxygen less efficiently

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2
Q

What is the action of adrenaline?

A

alpha 1 - redistribution of blood flow to the heart - vasoconstriction in the skin, gut and kidney, beta 1 - positive inotropic and chronotropic actions, beta 2 - dilation of coronary arteries

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3
Q

What drug is an alpha and beta agonist?

A

adrenaline

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4
Q

How is adrenaline administered in cardiac arrest?

A

IV

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5
Q

How is dobutamine administered?

A

IV infusion

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6
Q

What is the serious side effect of beta agonists?

A

can cause arrhythmias

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7
Q

How is adrenaline administered in anaphylactic shock?

A

IM

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8
Q

What is dobutamine used for?

A

acute heart failure - long term use increases mortality

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9
Q

What drug is selective for B adrenoceptors?

A

dobutamine

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Cardiovascular (37 decks)

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