mechanism of tachycardia and hypertension in pneumoperitoneum - 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 08-18-2012
USMLE Forums Newbie
 
Steps History: Not yet
Posts: 1
Threads: 1
Thanked 0 Times in 0 Posts
Reputation: 10
Question mechanism of tachycardia and hypertension in pneumoperitoneum

hi
can anyone explain why hypertension and tachycardia occur in pneumoperitneum in contrary to mary's law ( heart rate inversely related to blood pressure )
Reply With Quote Quick reply to this message



  #2  
Old 08-18-2012
Relid's Avatar
USMLE Forums Scout
 
Steps History: ---
Posts: 57
Threads: 8
Thanked 31 Times in 19 Posts
Reputation: 41
Default

Tachycardia and hypertension is the cardiovascular response to the pneumoperitoneum which causes increased femoral pressure etc...

Mary's law states that a decrease in blood pressure -> decrease in firing rate of carotid sinus nerve (baroreceptor reflex) -> decrease in parasympathetic outflow and increase in sympathetic outflow to the heart -> increase in HR and Pa (among others)

Hope it helps... Where did you read that anyways?
Reply With Quote Quick reply to this message



Reply

Tags
Cardiovascular-, Physiology-

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
How would prolonged QT cause Tachycardia! tyagee USMLE Step 2 CK Forum 0 07-05-2012 02:03 PM
Which Atrial Tachycardia is this? tyagee USMLE Step 2 CK Forum 10 05-26-2012 07:46 PM
Ventricular tachycardia & AF simultaneously? struggle USMLE Step 2 CK Forum 0 04-11-2012 02:57 PM
Primary Hypertension as Benign Hypertension gear2d USMLE Step 1 Forum 1 12-05-2011 02:59 PM
Quinidine and paradoxical tachycardia? sparkle_asp USMLE Step 1 Forum 2 09-07-2011 08:28 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)