• Wrong document? Swap it for free
  • Written by students who passed
  • Immediately available after payment
  • Read online or as PDF
Sell
Where do you study
Your language
Document preview thumbnail
Preview 4 out of 53 pages
Exam (elaborations)

Usmle Step 1 Drugs Questions With Correct Answers

Document preview thumbnail
Preview 4 out of 53 pages

USMLE STEP 1 DRUGS QUESTIONS WITH CORRECT ANSWERS

Content preview

Cyclophosphamide, Ifosfamide: MOA & AEs


Give this one a try later!


MOA: Alkylating agent; cross-link DNA at guanine N-7; require
bioactivation by liver

AE: myelosuppression, hemorrhagic cystitis (prevent w/ Mesna or N-
acetylcysteine)




Child taking medication for seizures has GI effects, fatigue, headache, urticaria,
Stevens-Johnson syndrome -- what drug?


Give this one a try later!

, Ethosuximide




Pt treated for depression develops GI dystress, SIADH, sexual dysfunction (decreased
libido). Cause? Treatment?


Give this one a try later!


SSRIs = Fluoxetine, Paroxetine, Sertraline, Citalopram ("Flashbacks Paralyze
Senior Citizens")


Tx: switch to Bupropion (no sexual side effects)




MOA of Echinocandins (-fungin)


Give this one a try later!


inhibit fungal cell wall synthesis by inhibiting synthesis of beta-glucan




1st line Tx for absence seizures (MOA?)


Give this one a try later!


Ethosuximide - blocks thalamic T-type Ca channels; can also use Valproate
or Lamotrigine

,Pt is treated for pneumonia/lung abscess/mouth infection and soon develops fever
and severe, foul-smelling, watery diarrhea.


Give this one a try later!


Clindamycin

Pt develops pseudomembranous colitis due to C. diff overgrowth




Smoking cessation Tx and MOA


Give this one a try later!


Bupropion (increases NE & DA)
Varenicline (nicotinic ACh receptor partial agonist)




Heparin MOA


Give this one a try later!


Lowers activity of thrombin and factor Xa by binding to anti-thrombin (AT)
III; short half-life; immediate anticoagulation




Dactinomycin: MOA & AEs


Give this one a try later!

, MOA: Antitumor antibiotic; intercalates in DNA

AE: myelosuppression




Tx for generalized anxiety disorder


Give this one a try later!


SSRIs, SNRIs, Buspirone (stimulates 5-HT 1A)




Tx for severe headaches? Contraindications?


Give this one a try later!


Sumatriptan (5-HT 1B/1D agonist; inhibit trigeminal activation;
vasoconstriction)

Contraindicated in pts w/ CAD or Prinzmetal angina due to coronary
vasopspasms (adverse effect)




Pt given anesthetics develops severe fever and muscle contractions
Diagnosis? Cause?
Treatment?


Give this one a try later!


Malignant Hyperthermia (autosomal dominant, variable penetrance,
ryanodine receptor mutation causes increased Ca release from SR)

Caused by inhaled anesthetics (-fluranes, N2O) or succinylcholine

Document information

Uploaded on
July 16, 2026
Number of pages
53
Written in
2025/2026
Type
Exam (elaborations)
Contains
Questions & answers
$10.50

Wrong document? Swap it for free Within 14 days of purchase and before downloading, you can choose a different document. You can simply spend the amount again.
Written by students who passed
Immediately available after payment
Read online or as PDF

Seller avatar
Reputation scores are based on the amount of documents a seller has sold for a fee and the reviews they have received for those documents. There are three levels: Bronze, Silver and Gold. The better the reputation, the more your can rely on the quality of the sellers work.
EXAMROOM
5.0
(1)
Sold
10
Followers
0
Items
3461
Last sold
2 weeks ago




Why students choose Stuvia

Created by fellow students, verified by reviews

Quality you can trust: written by students who passed their tests and reviewed by others who've used these notes.

Didn't get what you expected? Choose another document

No worries! You can instantly pick a different document that better fits what you're looking for.

Pay as you like, start learning right away

No subscription, no commitments. Pay the way you're used to via credit card and download your PDF document instantly.

Student with book image

“Bought, downloaded, and aced it. It really can be that simple.”

Alisha Student

Working on your references?

Create accurate citations in APA, MLA and Harvard with our free citation generator.

Working on your references?

Frequently asked questions