tsh feedback - USMLE Forums
USMLE Forums Logo
USMLE Forums         Your Reliable USMLE Online Community     Members     Posts
USMLE Articles
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

Thread Tools Search this Thread Display Modes
Old 04-19-2015
USMLE Forums Newbie
Steps History: Not yet
Posts: 1
Threads: 1
Thanked 0 Times in 0 Posts
Reputation: 10
Default tsh feedback

the kaplan physio says that it is the the free t4 that has the main negative feed back on the tsh and trh but the u world question explanations say that it is the free t3 that matters.goljan says it is both...
Reply With Quote Quick reply to this message

Old 04-20-2015
CleverFOX's Avatar
USMLE Forums Veteran
Steps History: Step 1 Only
Posts: 239
Threads: 4
Thanked 176 Times in 116 Posts
Reputation: 188
Send a message via Skype™ to CleverFOX

Although the t3 is the active form of the hormone but t4 is responsible for the negative feedback

See this video here Dr.Dunn talks about this


also check this thread


Last edited by CleverFOX; 04-20-2015 at 01:58 AM.
Reply With Quote Quick reply to this message
The above post was thanked by:
rohit22 (04-21-2015)


Quick Reply

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:
Please enter a password for your user account. Note that passwords are case-sensitive.
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.
Where you live. Leave blank if you don't want to tell.


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
TSH negative feedback? tarsuc USMLE Step 1 Forum 6 07-25-2012 10:02 PM
what can cause elevated TSH but normal T3 and T4? saintdizzy USMLE Step 1 Forum 1 10-10-2011 10:10 PM
TSH Subunits and Receptor Activation! saintdizzy USMLE Step 1 Forum 0 10-08-2011 08:50 AM
TSH Level in central hypothyroidism? iron USMLE Step 2 CK Forum 4 09-16-2011 02:08 AM
TSH - T4L - T3L salad fernandbteich USMLE Step 1 Forum 0 04-29-2011 04:58 AM

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)