Gyrus Daily Questions; Pediatrics #29 - 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 09-08-2012
USMLE Forums Master
 
Steps History: 1+CK+CS
Posts: 720
Threads: 217
Thanked 569 Times in 317 Posts
Reputation: 579
Arrow Gyrus Daily Questions; Pediatrics #29

A 2 years child with vit D resistent rickets was evaluated. His lab investigation reveal.
  • Serum calcium - 9 mg/dl
  • Serum phosphate - 2.4 mg/dl.
  • Serum alkaline phosphate - 1041 IU
  • Parathormone level - 59 units.
The likely diagnosis is:

a. Distal renal tubular acidosis.
b. Vit D dependent rickets.
c. Hypophophatemic rickets.
d. Hyperparathyroidism
Reply With Quote Quick reply to this message



  #2  
Old 09-08-2012
XpaezX's Avatar
USMLE Forums Master
 
Steps History: 1+CK+CS+3
Posts: 1,216
Threads: 41
Thanked 1,362 Times in 722 Posts
Reputation: 1377
Default

I think C, phosphorus is low
Reply With Quote Quick reply to this message
The above post was thanked by:
cingulate.gyrus (09-09-2012)
  #3  
Old 09-08-2012
USMLE Forums Master
 
Steps History: 1+CK+CS
Posts: 1,866
Threads: 149
Thanked 2,235 Times in 1,092 Posts
Reputation: 2255
Default

c. Hypophophatemic rickets.

But according to UW (QID: 3491) the Serum alkaline phosphate is normal in Hypophophatemic rickets. In the vignette it is high.

According to medscape the Serum alkaline phosphate is raised in Vit D deficient rickets which is not among the choices here.
Reply With Quote Quick reply to this message
The above post was thanked by:
cingulate.gyrus (09-09-2012), isha2810 (12-15-2012)
 
  #4  
Old 09-09-2012
USMLE Forums Master
 
Steps History: 1+CK+CS
Posts: 720
Threads: 217
Thanked 569 Times in 317 Posts
Reputation: 579
Default

Answer is C Hypophosphatemic rickets...

Gyrus Daily Questions; Pediatrics #29-ricket-table.jpg
Click image to enlarge

Ref Nel Nelson 19ed p202
Reply With Quote Quick reply to this message
The above post was thanked by:
Novobiocin (09-09-2012)
  #5  
Old 09-09-2012
USMLE Forums Master
 
Steps History: 1+CK+CS
Posts: 720
Threads: 217
Thanked 569 Times in 317 Posts
Reputation: 579
Default

Quote:
Originally Posted by Novobiocin View Post
c. Hypophophatemic rickets.

But according to UW (QID: 3491) the Serum alkaline phosphate is normal in Hypophophatemic rickets. In the vignette it is high.

According to medscape the Serum alkaline phosphate is raised in Vit D deficient rickets which is not among the choices here.
Sorry i couldn't refer the question u mentioned...But as far as i know...In allcases of rickets Alkalinephosphate will be elevated... except one condition

Hypophosphatasia ...Nelson p 2447
Autosomal rescessive conditon with low poduction of alkalline phosphate.
Clinical features of rickets..
Reply With Quote Quick reply to this message
The above post was thanked by:
Novobiocin (09-09-2012)
  #6  
Old 09-09-2012
USMLE Forums Master
 
Steps History: 1+CK+CS
Posts: 720
Threads: 217
Thanked 569 Times in 317 Posts
Reputation: 579
Default

Reply With Quote Quick reply to this message
The above post was thanked by:
Novobiocin (09-09-2012)



Reply

Tags
Figures-, Pediatrics-, Step-2-Questions, Tables-

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


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
Gyrus Daily Questions; Pediatrics #23 cingulate.gyrus USMLE Step 2 CK Forum 2 09-08-2012 11:05 AM
Gyrus Daily Questions; Pediatrics #25 cingulate.gyrus USMLE Step 2 CK Forum 2 09-08-2012 10:28 AM
Gyrus Daily Questions; Pediatrics #24 cingulate.gyrus USMLE Step 2 CK Forum 1 09-08-2012 10:10 AM
Gyrus Daily Questions; Pediatrics #13 cingulate.gyrus USMLE Step 2 CK Forum 4 09-07-2012 07:48 AM
Gyrus Daily Questions; Pediatrics #2 cingulate.gyrus USMLE Step 2 CK Forum 6 09-04-2012 06:14 AM

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)