Pharm Adjunct: Symp - Ephedrine Flashcards by Krista Flores | Brainscape

Q

Which drug is an indirect acting sympathomimetic?

A

Ephedrine

Releases NE

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Q

Which SNS agonist can be given IM?
Why would this be done?

A

Ephedrine IM 50mg
Long lasting increase in BP for OB patients.

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Q

Why does tachyphylaxis occur with ephedrine?

A

Ephedrine depletes NE stores

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Q

What is the preferred sympathomimetic for parturient patients?
Why?

A

Ephedrine (It doesn’t effect uterine blood flow)

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Q

How does phenylephrine compare to ephedrine in parturient patients?

A

Phenylephrine has similar effects but has the additional benefit of a higher umbilical pH in neonates.

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