Explanation of the Narcolepsy features? - 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 03-25-2011
kemoo's Avatar
USMLE Forums Guru
 
Steps History: 1+CK+CS
Posts: 378
Threads: 161
Thanked 103 Times in 52 Posts
Reputation: 117
Question Explanation of the Narcolepsy features?

what difference between

sleep attack

sleep paralysis

cataplexy


all of them presenting symptoms of narcolepsy
Reply With Quote Quick reply to this message



  #2  
Old 03-25-2011
Hope2Pass's Avatar
USMLE Forums Master
 
Steps History: 1+CK+CS+3
Posts: 1,684
Threads: 213
Thanked 1,596 Times in 660 Posts
Reputation: 1606
Default

The Narcoleptic Tetrad includes the following-

1) Sleep attacks and excessive daytime sleepiness
(Sleep attacks are when you just fall asleep and go straight into REM sleep) This can be seen in narcoleptic patient as they would seem like they fainted but really they just fall asleep and if you notice their eyes; they will have the presentation of REM sleep: rapid eye movements)

2) Cataplexy (this is the pathognomonic sign) - a sudden and transient episode of loss of muscle tone, often triggered by emotions. Do not confuse this with epilepsy, in which a series of flashes or other stimuli can cause superficially similar seizures.

3) Hypnagogic hallucnations (while falling asleep)
(hypnopompic - while waking up, these hallucations may occur but are not pathognomonic)

4) Sleep Paralysis: This is when you fall asleep and are paralyzed. Normally, you dont use your muscles when you're sleeping but this is dangerous and possibly fatal when it comes Respiratory Muscle Paralysis.

Deficiency in hypocretin protein transport (orexin)
Treatment with Modafinil

Sources - KLN and Wiki
Reply With Quote Quick reply to this message
The above post was thanked by:
apx85 (03-27-2011), donofitaly (03-25-2011), dr.husnain (04-11-2011), drortho (12-08-2011)
  #3  
Old 03-27-2011
kemoo's Avatar
USMLE Forums Guru
 
Steps History: 1+CK+CS
Posts: 378
Threads: 161
Thanked 103 Times in 52 Posts
Reputation: 117
Default

thanks but i need better explanation for

sleep attack and sleep paralysis
Reply With Quote Quick reply to this message



Reply

Tags
Behavioral-Sciences-, Psychiatry-

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
Sjögren's syndrome clinical features mnemonic bobby USMLE Step 1 Mnemonics 3 02-20-2015 01:18 PM
Should we read the explanation for questions we answered right? mahganem USMLE Step 1 Forum 3 10-14-2010 07:13 PM
simple explanation Seetal USMLE Step 1 Forum 4 08-31-2010 07:59 AM
PICK's Disease Mnemonic jackat1000 USMLE Step 1 Mnemonics 0 01-19-2010 11:53 AM
Narcolepsy Mnemonic lee-usmle USMLE Step 1 Mnemonics 1 10-26-2009 02:03 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)