Aortic Arch Origin of this infant's congenital heart disease? - 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 10-31-2011
USMLE Forums Master
 
Steps History: Not yet
Posts: 674
Threads: 264
Thanked 963 Times in 394 Posts
Reputation: 973
Send a message via Yahoo to ricko335
Zygote Aortic Arch Origin of this infant's congenital heart disease?

A newborn infant is found to have a left to right shunting of blood in his heart. His mother had a rubella virus during pregnancy and there is a history of intrauterine asphyxia. From which of the following choices does the structure causing the infantís congenital heart problem arise from?

A. Aortic arch 4
B. Aortic arch 5
C. Aortic arch 3
D. Aortic arch 6
E. Aortic arch 2
Reply With Quote Quick reply to this message
The above post was thanked by:
Abdulaziz (10-31-2011), bronchiole (10-31-2011), mle guy (10-31-2011), zohra (10-31-2011)



  #2  
Old 10-31-2011
USMLE Forums Newbie
 
Steps History: Not yet
Posts: 7
Threads: 2
Thanked 2 Times in 2 Posts
Reputation: 12
Default

DD. I think this is a case of PDA. Am I right?
Reply With Quote Quick reply to this message
The above post was thanked by:
dr.muhamad (10-31-2011)
  #3  
Old 10-31-2011
USMLE Forums Guru
 
Steps History: Not yet
Posts: 404
Threads: 108
Thanked 71 Times in 48 Posts
Reputation: 80
Default

aortic arch 6
Reply With Quote Quick reply to this message
 
  #4  
Old 10-31-2011
mle guy's Avatar
USMLE Forums Veteran
 
Steps History: 1+CK+CS+3
Posts: 264
Threads: 16
Thanked 350 Times in 165 Posts
Reputation: 360
Default

PDA caused by Rubella. Aortic arch 6
Reply With Quote Quick reply to this message
  #5  
Old 10-31-2011
USMLE Forums Scout
 
Steps History: Step 1 Only
Posts: 44
Threads: 4
Thanked 5 Times in 5 Posts
Reputation: 15
Default

A newborn infant is found to have a left to right shunting of blood in his heart. His mother had a rubella virus during pregnancy and there is a history of intrauterine asphyxia. From which of the following choices does the structure causing the infantís congenital heart problem arise from?
A. Aortic arch 4
B. Aortic arch 5
C. Aortic arch 3
D. Aortic arch 6
E. Aortic arch 2
Reply With Quote Quick reply to this message
  #6  
Old 10-31-2011
USMLE-Syndrome's Avatar
USMLE Forums Master
 
Steps History: ---
Posts: 1,203
Threads: 180
Thanked 1,254 Times in 441 Posts
Reputation: 1268
Default

D. Aortic arch 6n PDA due to congental rubella
Reply With Quote Quick reply to this message
  #7  
Old 10-31-2011
USMLE Forums Scout
 
Steps History: 1 + CK
Posts: 44
Threads: 2
Thanked 35 Times in 13 Posts
Reputation: 45
Default

I didn't get the no. thing but its PDA
Reply With Quote Quick reply to this message
  #8  
Old 10-31-2011
USMLE Forums Scout
 
Steps History: Not yet
Posts: 59
Threads: 19
Thanked 3 Times in 3 Posts
Reputation: 13
Default

PDA aortic arch 6
Reply With Quote Quick reply to this message
  #9  
Old 11-01-2011
USMLE Forums Master
 
Steps History: Not yet
Posts: 674
Threads: 264
Thanked 963 Times in 394 Posts
Reputation: 973
Send a message via Yahoo to ricko335
Default

The correct answer is D.
The infant presents with a patent ductus arteriosus (PDA). PDA is associated with a history of maternal rubella virus as well as prostaglandin E, intrauterine asphyxia and neonatal asphyxia. The ductus arteriosus develops from aortic arch 6. The following are the aortic arch derivatives: Aortic arch 1: part of the maxillary artery, Aortic arch 2: stapedial artery and hyoid artery, Aortic arch 3: common carotid arteries and internal carotid arteries (proximal part), Aortic arch 4: right subclavian artery (proximal part) and part of aortic arch on the left and Aortic arch 5: regresses in humans.
Reply With Quote Quick reply to this message
The above post was thanked by:
Farrukh Munir (11-17-2011), naush (11-01-2011)



Reply

Tags
Cardiovascular-, Embryology-, 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
Congenital anomalies and congenital heart disease amirh899 USMLE Step 2 CK Classic Clues 4 4 Days Ago 09:22 PM
Congenital Heart Disease Question harlesmd USMLE Step 1 Forum 28 11-10-2011 09:33 PM
heart with massive dilation of the aortic root and adjacent aortic arch. l2sweedan USMLE Step 1 Forum 2 10-04-2011 12:43 PM
congenital heart disease usmleman2020 USMLE Step 1 Forum 2 08-08-2011 09:43 AM
Newborn Congenital Heart Disease Dx from Chest X ray! aksyonez USMLE Step 2 CK Forum 8 07-07-2011 06:35 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)