Dusky color when feeding - 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 04-22-2010
FreakingOut's Avatar
USMLE Forums Scout
 
Steps History: Not yet
Posts: 34
Threads: 27
Thanked 20 Times in 12 Posts
Reputation: 30
Pediatrics Dusky color when feeding

A 2-month-old male is brought to the pediatrician by his mother who is concerned that he is not gaining weight. She also notes that his color is poor, especially when he tries to feed, when he often grunts and turns dusky. Which of the following cardiac lesions is most likely to cause the patientís symptoms?

A. Atrial septal defect
B. Patent ductus arteriosus
C. Patent foramen ovale
D. Tetralogy of Fallot
E. Ventricular septal defect
Reply With Quote Quick reply to this message
The above post was thanked by:
aungawa (04-24-2010), castillormd (04-23-2010)



  #2  
Old 04-23-2010
USMLE Forums Veteran
 
Steps History: 1 + CK
Posts: 234
Threads: 63
Thanked 127 Times in 63 Posts
Reputation: 157
Default

I think the child has Tetralogy of Fallot
Reply With Quote Quick reply to this message
The above post was thanked by:
FreakingOut (04-23-2010)
  #3  
Old 04-23-2010
ath.pantelis's Avatar
USMLE Forums Addict
 
Steps History: 1+CK+CS
Posts: 187
Threads: 4
Thanked 368 Times in 121 Posts
Reputation: 398
Default

This is kinda "the odd one out" question. Tetralogy of Fallot is the only cyanotic congenital heart disease among the available options. Cyanosis is most probable to develop in exertion, i.e. during feeding. Moreover ToF is the most common cyanotic congenital heart disease.

Should there have been options such as Tricuspid Atresia or Transposition of Great Vessels (which are also cyanoTic), have in mind that these entities present with cyanosis at the immediate newborn period. On the contrary, ToF may take months or even years to manifest clinically (cyanosis depends on the degree of pulmonary artery stenosis).
Reply With Quote Quick reply to this message
The above post was thanked by:
anoop_1198 (05-18-2010), dr.eldaw (04-15-2013), FreakingOut (04-23-2010), nano (05-02-2010), rasheed (04-23-2010), Seetal (04-23-2010)
  #4  
Old 04-23-2010
Seetal's Avatar
USMLE Forums Master
 
Steps History: Step 1 Only
Posts: 919
Threads: 134
Thanked 1,301 Times in 364 Posts
Reputation: 1324
Send a message via MSN to Seetal
Default

Yes I agree. I chose the odd one out (R to L shunt) instead of the other L to R shunts.
Reply With Quote Quick reply to this message
The above post was thanked by:
FreakingOut (04-23-2010)
  #5  
Old 04-23-2010
FreakingOut's Avatar
USMLE Forums Scout
 
Steps History: Not yet
Posts: 34
Threads: 27
Thanked 20 Times in 12 Posts
Reputation: 30
Default Yes,

Thank you guys your answers make sense
Reply With Quote Quick reply to this message



Reply

Tags
Cardiovascular-, Pathology-, Pediatrics-, 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
kaplan blue color books ,dvds,qbanks 4 sale chris27 For Sale & Wanted Items 1 04-11-2010 05:36 AM
Port Wine Color in USMLE Questions rasheed USMLE Step 2 CK Buzzwords 0 03-25-2010 07:16 AM
Urine color changes by drugs aalous USMLE Step 1 Forum 1 11-20-2009 04:08 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)