Cyanide Poisoning Vitamin! - USMLE Forums
USMLE Forums Logo
USMLE Forums         Your Reliable USMLE Online Community     Members     Posts
Home
USMLE Articles
USMLE News
USMLE Polls
USMLE Books
USMLE Apps
Go Back   USMLE Forums > USMLE Step 1 Forum

USMLE Step 1 Forum USMLE Step 1 Discussion Forum: Let's talk about anything related to USMLE Step 1 exam


Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 08-27-2012
venky2600's Avatar
USMLE Forums Master
 
Steps History: 1+CK+CS+3
Posts: 1,186
Threads: 119
Thanked 815 Times in 434 Posts
Reputation: 825
Send a message via Yahoo to venky2600
Biochemistry Cyanide Poisoning Vitamin!

Which of the following vitamin can be useful for cyanide poisoning?

a) vit. B6
B) vit. B1
C) vit.B12
d) vit. E
e) niacin
f) pantothenic acid
Reply With Quote Quick reply to this message



  #2  
Old 08-27-2012
USMLE Forums Guru
 
Steps History: Not yet
Posts: 375
Threads: 17
Thanked 131 Times in 81 Posts
Reputation: 147
Default

c) Vitamin B12
Reply With Quote Quick reply to this message
The above post was thanked by:
debs (08-27-2012)
  #3  
Old 08-27-2012
USMLE Forums Master
 
Steps History: 1+CK+CS
Posts: 1,039
Threads: 189
Thanked 557 Times in 318 Posts
Reputation: 567
Default my answer

C) vit.B12

hydroxycobolamin - used to form cyanocobolamin (which is not toxic)
Reply With Quote Quick reply to this message
The above post was thanked by:
debs (08-27-2012)
  #4  
Old 08-27-2012
venky2600's Avatar
USMLE Forums Master
 
Steps History: 1+CK+CS+3
Posts: 1,186
Threads: 119
Thanked 815 Times in 434 Posts
Reputation: 825
Send a message via Yahoo to venky2600
Post

yes, the correct answer is C) vitamin B 12

Hydroxycobalamine, a natural form of methylcobalamine can be used for cyanide poisoning......as @ casandra said it changes into cyanocobalamine, which is less toxic than cyanide
cyanide inhibits complex 4 of ETC (also CO,azides too)...cyt.C oxidase..inhibiting oxidative phosphorylation and decreases diffusion of oxygen availability to tissues
the other treatments are nitrites, thiosulphate..
Reply With Quote Quick reply to this message
The above post was thanked by:
Doc4Step1 (08-27-2012)



Reply

Tags
Biochemistry-, Step-1-Questions

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the USMLE Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Medical School
Choose "---" if you don't want to tell. AMG for US & Canadian medical schools. IMG for all other medical schools.
USMLE Steps History
What steps finished! Example: 1+CK+CS+3 = Passed Step 1, Step 2 CK, Step 2 CS, and Step 3.

Choose "---" if you don't want to tell.

Favorite USMLE Books
What USMLE books you really think are useful. Leave blank if you don't want to tell.
Location
Where you live. Leave blank if you don't want to tell.

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
CO poisoning, P50, PO2, and O2 content Haisook USMLE Step 1 Forum 7 04-27-2016 07:19 PM
Lead Poisoning sonu.agarwall USMLE Step 2 CK Mnemonics 0 10-30-2011 11:57 AM
Gasoline Poisoning, What to do? usmleman2020 USMLE Step 1 Forum 4 08-14-2011 07:58 AM
A man with suspected poisoning aksyonez USMLE Step 2 CK Forum 4 07-08-2011 03:47 PM
Arsenic Poisoning apx85 USMLE Step 1 Forum 1 12-06-2010 03:16 PM

RSS Feed
Find Us on Facebook
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.

USMLE® & other trade marks belong to their respective owners, read full disclaimer
USMLE Forums created under Creative Commons 3.0 License. (2009-2014)