Infective Endocarditis Predisposing Factor! - 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 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


Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 04-08-2012
tyagee's Avatar
USMLE Forums Master
 
Steps History: ---
Posts: 1,365
Threads: 648
Thanked 585 Times in 354 Posts
Reputation: 595
Heart Infective Endocarditis Predisposing Factor!

A 63-year-old woman presents with a 2-week history of malaise, fatigue, fever, and rash. Physical examination reveals a temperature of 38.4C (101.1F), grouped petechiae over the distal extremities, and cardiac murmur. Transesophageal echocardiography reveals valvular vegetations and blood cultures grow Streptococcus viridans. What is the most likely predisposing factor for this patient's condition?

A. Bicuspid aortic valve
B. Myxomatous valvular degeneration
C. Postinflammatory valvular disease
D. Prosthetic valves
E. Ventricular septal defect (VSD
Reply With Quote Quick reply to this message



  #2  
Old 04-08-2012
USMLE Forums Scout
 
Steps History: Step 1 Only
Posts: 76
Threads: 10
Thanked 31 Times in 27 Posts
Reputation: 41
Default

answer.. D .
Reply With Quote Quick reply to this message
  #3  
Old 04-08-2012
shyangel18's Avatar
USMLE Forums Guru
 
Steps History: 1 + CS
Posts: 388
Threads: 48
Thanked 235 Times in 128 Posts
Reputation: 245
Send a message via MSN to shyangel18
Default

My guess is A. considering the age of patient!
not sure
__________________
Ppl come here to study n ponder
I am here to Excell like Thunder!
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Quick reply to this message
  #4  
Old 04-09-2012
tyagee's Avatar
USMLE Forums Master
 
Steps History: ---
Posts: 1,365
Threads: 648
Thanked 585 Times in 354 Posts
Reputation: 595
Default

Quote:
Originally Posted by shyangel18 View Post
My guess is A. considering the age of patient!
not sure
isnt bicuspid in younger age?
Reply With Quote Quick reply to this message
  #5  
Old 04-12-2012
USMLE Forums Scout
 
Steps History: Not yet
Posts: 49
Threads: 0
Thanked 22 Times in 12 Posts
Reputation: 32
Default

Yes, Bicuspid aortic valve is common in pediatric population.

In elderly patients, i guess it should be prosthetic valve. But I don't know what is the incidence data.
Reply With Quote Quick reply to this message
  #6  
Old 04-12-2012
USMLE Forums Veteran
 
Steps History: Step 1 Only
Posts: 239
Threads: 3
Thanked 48 Times in 37 Posts
Reputation: 58
Default

I think, C. Postinflammatory valvular disease
__________________
I'm Predictable In The Unpredictable Future !
Reply With Quote Quick reply to this message
  #7  
Old 04-12-2012
USMLE Forums Scout
 
Steps History: Not yet
Posts: 49
Threads: 0
Thanked 22 Times in 12 Posts
Reputation: 32
Default

Quote:
Originally Posted by dryogi View Post
I think, C. Postinflammatory valvular disease
It would be good if you can mention the reason.
Reply With Quote Quick reply to this message
  #8  
Old 04-12-2012
USMLE Forums Veteran
 
Steps History: Step 1 Only
Posts: 239
Threads: 3
Thanked 48 Times in 37 Posts
Reputation: 58
Default

Actually due to rash, grouped petechiae over the distal extremities... i hit this option !
__________________
I'm Predictable In The Unpredictable Future !
Reply With Quote Quick reply to this message
  #9  
Old 04-12-2012
MedicalExaminer's Avatar
USMLE Forums Master
 
Steps History: 1+CK+CS+3
Posts: 824
Threads: 66
Thanked 463 Times in 298 Posts
Reputation: 473
Default

C


---
I am here: http://tapatalk.com/map.php?qutezv
__________________
Everything is possible for him who believes (MARK 9:23)
245/247/passed on 1st attempt/223/2mos Obsie /3 US LORS/visa not needed/2008 grad
Reply With Quote Quick reply to this message
  #10  
Old 04-12-2012
USMLE Forums Addict
 
Steps History: 1+CK+CS+3
Posts: 178
Threads: 8
Thanked 99 Times in 54 Posts
Reputation: 109
Default

it's D.
strept viridans is associated with prosthetic valves. post inflamatory would probably be staph aureus if i'm not mistaken.
Reply With Quote Quick reply to this message
  #11  
Old 04-14-2012
USMLE Forums Scout
 
Steps History: Not yet
Posts: 49
Threads: 0
Thanked 22 Times in 12 Posts
Reputation: 32
Default

Quote:
Originally Posted by MedicalExaminer View Post
C

Yep, I ignored the data. C is the correct answer.
Reply With Quote Quick reply to this message
  #12  
Old 04-14-2012
Ace3's Avatar
USMLE Forums Master
 
Steps History: 1+CK+CS
Posts: 735
Threads: 89
Thanked 286 Times in 191 Posts
Reputation: 298
Default

i think its d
Reply With Quote Quick reply to this message
  #13  
Old 04-15-2012
USMLE Forums Veteran
 
Steps History: Step 1 Only
Posts: 239
Threads: 3
Thanked 48 Times in 37 Posts
Reputation: 58
Default

Answer Plz !
__________________
I'm Predictable In The Unpredictable Future !
Reply With Quote Quick reply to this message
  #14  
Old 04-15-2012
tyagee's Avatar
USMLE Forums Master
 
Steps History: ---
Posts: 1,365
Threads: 648
Thanked 585 Times in 354 Posts
Reputation: 595
Default

Quote:
Originally Posted by dryogi View Post
Answer Plz !
ans given is b

here is the explln from qbank. any comments?
Explanation
Option B (Myxomatous valvular degeneration) is correct. This patient has infective endocarditis (IE). Myxomatous valvular degeneration describes mitral valve prolapse, which, by virtue of its common presence in the community, is now the overall most common predisposing cardiac factor for IE.


Option A (Bicuspid aortic valve) is incorrect. Congenital bicuspid aortic valves do increase the risk for IE, but it is not the most common predisposing cardiac factor.

Option C (Postinflammatory valvular disease) is incorrect. This describes rheumatic heart disease, which was formally the most common predisposing factor. Therapy with antibiotics has reduced the incidence of rheumatic fever causing it to become a lesser factor in development of IE.

Option D (Prosthetic valves) is incorrect. Individuals with prosthetic valves are at much greater risk for IE. However, as very few individuals have prosthetic valves, it is not the most common predisposing factor.

Option E (Ventricular septal defect [VSD]) is incorrect. A VSD does increase the risk for developing IE, but it is a lesser factor than mitral valve prolapse.
Reply With Quote Quick reply to this message
The above post was thanked by:
eriqaly (07-24-2015), shinigami (04-26-2013), slamdunk (01-06-2013), slumdog (04-15-2012)
  #15  
Old 04-15-2012
USMLE Forums Scout
 
Steps History: Not yet
Posts: 49
Threads: 0
Thanked 22 Times in 12 Posts
Reputation: 32
Default

Thanks for posting the clarifications. This is called a well-understood answer.
Reply With Quote Quick reply to this message






Reply

Tags
Cardiology-, Infectious-Diseases, Step-2-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
predisposing factors for endocarditis chienpolska USMLE Step 2 CK Forum 2 11-01-2011 01:39 PM
Infective endocarditis ag2011n USMLE Step 2 CK Forum 4 10-01-2011 05:14 AM
prophylaxis for Infective endocarditis kemoo USMLE Step 2 CK Forum 7 06-29-2011 09:50 AM
Infective Endocarditis: Most common infective microorganisms lee-usmle USMLE Step 2 CK Mnemonics 4 05-01-2011 06:21 PM
The highest risk factor for predisposing pancreatic cancer? cville156 USMLE Step 1 Forum 2 04-06-2011 09:26 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)