endocrine question in USMLE - USMLE Forums
USMLE Forums Logo
USMLE Forums         Your Reliable USMLE Online Community     Members     Posts
USMLE Articles
Go Back   USMLE Forums > USMLE Step 2 CK Forum

USMLE Step 2 CK Forum USMLE Step 2 CK Discussion Forum: Let's talk about anything related to USMLE Step 2 CK exam

Thread Tools Search this Thread Display Modes
Old 02-12-2015
USMLE Forums Master
Steps History: 1+CK+CS+3
Posts: 1,031
Threads: 975
Thanked 183 Times in 162 Posts
Reputation: 193
Default endocrine question in USMLE

A 32 year-old man complains of fatigue, weakness, edema and acne for 6 months. He is 70in tall and weighs 220 Ib. His blood pressure is 148/90 mmHg. He has central obesity, enlarged subclavicular fat pads and prominent abdominal striae. His lab tests are:
The 24-hour urine cortisol excretion is 288
Serum cortisol level is 18 at 8:00 am after taking 1 mg of dexamethasone at bedtime and next day it was 18.9 after at 8:00 am after taking 8 mg of dexamethasone at bedtime.
Plasma ACTH level is 281

What is the most likely site of the disorder causing Cushing syndrome in this patient?

A- Pituitary gland
B- Hypothalamus
C- Lungs
D- Adrenal glands
E- Pancreas
Reply With Quote Quick reply to this message

Old 02-13-2015
DrAGA's Avatar
USMLE Forums Guru
Steps History: Step 1 Only
Posts: 342
Threads: 47
Thanked 149 Times in 86 Posts
Reputation: 159

its D suppress with low dose dexa-mean adrenal...
Reply With Quote Quick reply to this message
Old 02-14-2015
USMLE Forums Addict
Steps History: 1+CK+CS+3
Posts: 135
Threads: 21
Thanked 75 Times in 26 Posts
Reputation: 85

it's C - Doesn't suppress with high-dose dexa + high levels of ACTH, probably small cell lung cancer.

It would be better if you didn't make separate threads for every single question you find difficult
Reply With Quote Quick reply to this message


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.


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Similar Threads
Thread Thread Starter Forum Replies Last Post
Endocrine Question aawe004 USMLE Step 2 CK Forum 6 05-28-2014 07:41 AM
Kaplan q bank endocrine question!!! usmlemydream USMLE Step 1 Forum 1 02-23-2012 06:11 AM
Multiple Endocrine Neoplasia Question scopusmount USMLE Step 1 Forum 2 11-10-2011 07:44 AM
(Endocrine) drnrpatel USMLE Step 3 Forum 3 10-20-2011 09:25 PM
Endocrine question: Healthy 24 y/o... heights USMLE Step 1 Forum 4 11-21-2010 12:51 PM

Find Us on Facebook
Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.

USMLE® & other trade marks belong to their respective owners, read full disclaimer
USMLE Forums created under Creative Commons 3.0 License. (2009-2019)