USMLE FACTS (step1) channel
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Necessary facts from USMLE steps, clinical cases
ID: 📚 @usmle_facts
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Assalomu alaikum to everyone who is studying in med schools and preparing to take USMLE exam or at least interested in medical grounds. After little break we are again with you for sharing useful and high yield facts as well as interesting cases. Stay here with us and improve your knowledge)
Flash facts
⚠️TOXINS AND THEIR ACTION🧪🧬

💢 Cholera toxin
enters the cell and constitutively activates the Gs protein

💢 Shiga toxin
(seen in shigellosis) cleaves host cell rRNA (Blocking 60S)

💢 Bacillus anthracis
toxin directly acts as an adenylate cyclase

💢 Diphtheria toxin
and exotoxin A of Pseudomonas inactivate elongation factor 2

💢 Bordetella pertussis exotoxin
permanently inactivates Gi protein
Causes of meningitis according age of pt:

Infants:
group B streptococci or Escherichia coli.

Сhildren: S. pneumoniae, Neisseria meningitidis, and Haemophilus influenzae.

Teens / young adults (especially college-aged): N. meningitidis.

Old guys: S. pneumoniae
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USMLE Notes Flash Facts
Reactive arthritis can be caused by following:
GIT infections: Campylobacter, Salmonella, Shigella, Yersinia
GU infections: Chlamydia trachomatis, Ureaplasma urealyticum
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Antibiotics and their mechanism of action which you always forget😎👍
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USMLE Notes Flash Facts
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Guys, i will post here some necessary and very HY links
👇
#Psychiatry
https://youtu.be/4eD1qI-57zw
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