Exam (elaborations)
ANTIDOTES FOR THE USMLE & COMLEX QUESTIONS AND ANSWERS WITH SOLUTIONS 2024
- Course
- Institution
ANTIDOTES FOR THE USMLE & COMLEX QUESTIONS AND ANSWERS WITH SOLUTIONS 2024
[Show more]
Content preview
ANTIDOTES FOR THE USMLE &COMLEX QUESTIONS AND ANSWERS
WITH SOLUTIONS 2024
acetaminophen (tylenol) - ANSWER *N-acetylcysteine*
MOA = restores glutathione
salicylates (aspirin) - ANSWER *NaHCO3*
MOA = urine alkalinization
if within 1 hour of ingestion → *activated charcoal*
MOA = prevents absorption
*theophylline*
(scenario = COPD patient presents w/ HA, nausea & vomiting, and coarse tremor; labs reveal
hypokalemia & metabolic acidosis; death results from intractable ventricular arrythmia) - ANSWER beta-
bockers (propanolol, esmolol)
*cholinesterase inhibitors*,
*organophosphates (e.g. parathion)*
(scenario = farmer exposed to insecticides) - ANSWER *1st line = atropine*
MOA = blocks ACh receptors
*pralidoxime (2-PAM)*
MOA = regenerates AChE if given early
*sarin gas*
, (scenario = Syrian child exposed to nerve gas during bombing;
or a soldier returning from WW1) - ANSWER *1st line = atropine*
MOA = blocks ACh receptors
*pralidoxime (2-PAM)*
MOA = regenerates AChE if given early
*anticholinergic/antimuscarinic toxicity*
(scenario = jimson weed in California) - ANSWER *physostigmine*
MOA = tertiary amine (can freely cross BBB); reverses CNS anticholinergic effects
*iron*
(scenario = child undergoing repeated transfusions for beta-thalassemia) - ANSWER
*deferoxamine/deferasirox/deferiprone*
MOA = binds trivalent (ferric) iron & increases its renal excretion
*lead*
(scenario = 2 y/o teething child begins chewing on household objects & becomes lethargic + clutches
abdomen; labs reveal ↑ free erythrocyte protoporphyrin level & basophilic stippling on peripheral
smear.) - ANSWER *1st line = succimer*
2nd line = penicillamine
if severe = calcium EDTA + dimercaprol
*carbon monoxide (CO)*
(scenario = found in garage w/ car running; cherry-red appearance) - ANSWER *100% oxygen*
consider Hyperbaric O2
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Performance. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $14.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
77254 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now