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NBME 18 Answers

nbme18/Block 3/Question#31 (reveal difficulty score)
A 30-year-old woman comes to the physician ...
Phenylephrine ๐Ÿ” / ๐Ÿ“บ / ๐ŸŒณ / ๐Ÿ“–
tags: pharm

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submitted by drjmrt26(6)

This patient has Raynaud phenomenon.

Those patients should avoid medications that cause vasoconstriction (narrowing of the blood vessels) โ€“ Such medications include decongestants containing phenylephrine or pseudoephedrine, other amphetamines, diet pills, some migraine remedies containing ergotamine, herbs containing ephedra, and medications used to treat attention deficit disorder (ADD) such as methylphenidate, dextroamphetamine-amphetamine, and atomoxetine.

UpToDate: Raynaud phenomenon (Beyond the Basics)

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kcyanide101  worth adding is that phenylephrine is an adrenergic agonist (a1>a2).... so it will basically result in vasoc further worsening the pts symptoms +

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