10- Adrenergic Drug Flashcards

1
Q

small IV doses of Epi –>

A

b1 and b2

to increase pulse pressure, Hr, SV, CO and via B2 a decrease in resistance

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2
Q

moderate doses of epi –>

A

B1/2andA1

B1 increase HR SV CO and PP

but B2/A1 contradict each other
B2 decrease TPr and decrease DBP but A1 increase TPR and increase BP

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3
Q

why is the effect on beta more importannt than alpha in epi?

A

beta always has higher binding affinity

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4
Q

epinephrine reversal phenomenon

**will be tested

A

if you block, a or b –> more pronounced response with remaining receptor

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5
Q

contraindications for epinephrine..

A

patinets using nonselective Beta blockers

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6
Q

can you use epi for anaphylaxis if pt is on nonselective b blcokers?

A

nope

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7
Q

main cardiovascualr effect of NE

A

increase TPR (no b2 component unlike epi)

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