AIDS with Diarrhea - 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 11-12-2013
USMLE Forums Scout
 
Steps History: Not yet
Posts: 45
Threads: 9
Thanked 12 Times in 5 Posts
Reputation: 22
Question AIDS with Diarrhea

If question gives a scenario of AIDS with CD count < 20 and patient is having progressive watery diarrhea. Stool sample staining with acid fast stain shows multiple organisms. What should be the answer.
a) C. parvum
b) E. histolytica
c) G .Lamblia
d) M. tuberculosis
Reply With Quote Quick reply to this message



  #2  
Old 11-12-2013
USMLE Forums Addict
 
Steps History: 1+CK+CS
Posts: 101
Threads: 8
Thanked 24 Times in 14 Posts
Reputation: 34
Default

a. Cryptosporidium
Reply With Quote Quick reply to this message
  #3  
Old 11-12-2013
USMLE Forums Scout
 
Steps History: Not yet
Posts: 45
Threads: 9
Thanked 12 Times in 5 Posts
Reputation: 22
Default

Quote:
Originally Posted by Manav Singh View Post
a. Cryptosporidium
Q stem says organisms in stool not ovum......Cryptosporidium ovum are acid fast but they as an organism not...its the only thing which confuses me??shouldnt MTB be the ans.
Reply With Quote Quick reply to this message
 
  #4  
Old 02-04-2014
USMLE Forums Scout
 
Steps History: 1+CK+CS+3
Posts: 75
Threads: 1
Thanked 25 Times in 14 Posts
Reputation: 35
Default Explanations please!!

I think it is A.
Quote:
Originally Posted by hardtime View Post
If question gives a scenario of AIDS with CD count < 20 and patient is having progressive watery diarrhea. Stool sample staining with acid fast stain shows multiple organisms. What should be the answer.
a) C. parvum
b) E. histolytica
c) G .Lamblia
d) M. tuberculosis
Reply With Quote Quick reply to this message
  #5  
Old 02-09-2014
USMLE Forums Scout
 
Steps History: 1+CK+CS
Posts: 57
Threads: 27
Thanked 11 Times in 8 Posts
Reputation: 21
Default

aids with diarrhea is cryptosporidium, by the way i just joined, how do i write a new post in the forum?
Reply With Quote Quick reply to this message
  #6  
Old 11-29-2014
USMLE Forums Master
 
Steps History: ---
Posts: 868
Threads: 78
Thanked 360 Times in 208 Posts
Reputation: 370
Romania Hi

Quote:
Originally Posted by hardtime View Post
Q stem says organisms in stool not ovum......Cryptosporidium ovum are acid fast but they as an organism not...its the only thing which confuses me??shouldnt MTB be the ans.
Herpes virus group like Kaposi sarcoma may produce diarrhea...

AIDS-Related DiarrheaDate: April 1, 1995
Source: National Institutes of Health (NIH)
Author: National Institute of Allergy and Infectious Diseases (NIAID)


In the United States, almost all people with AIDS develop diarrhea at some time in the course of their disease. Severe or prolonged diarrhea can lead to weight loss and malnutrition. The excessive loss of fluid that may occur with AIDS-related diarrhea can be life-threatening.
Symptoms
Diarrhea, which means two or more loose or unformed stools per day, can last for a few days or can be chronic, lasting for weeks or months. Many people with AIDS have diarrhea that persists for more than a month or is so severe they expel several gallons of fluid a day. The diarrhea may be accompanied by abdominal cramps, nausea, vomiting, fever, blood in the stool or weakness.
Causes
There are many possible causes of diarrhea in people who have AIDS. The most common infectious organisms causing AIDS-related diarrhea include cytomegalovirus (CMV); the parasites Cryptosporidium, microsporidia and Giardia lamblia; and the bacterium Mycobacterium avium-intracellulare (MAC). Other bacteria and parasites that cause diarrheal symptoms in otherwise healthy people may cause more severe, prolonged or recurrent diarrhea in people with HIV or AIDS.
Diarrhea also can have non-infectious causes. These include: antibiotics or other drugs that can destroy beneficial bacteria in the intestines; HIV enteropathy, which is disease caused by HIV itself; cancers such as non-Hodgkin's lymphoma or Kaposi's sarcoma; and lactose intolerance, irritable bowel or other gastrointestinal disorders. For example, most people with AIDS are lactose intolerant, which means they cannot digest lactose, a milk sugar. When they eat dairy products such as milk, cheese or ice cream they may develop diarrhea, cramping and gas. Sometimes, diarrhea can stem from a lack of stomach acids, a condition that is common in people with AIDS.
Diagnosis
It is important to determine the cause of diarrhea so that the best treatment can be offered. Doctors examine stool samples to determine whether diarrhea-causing organisms are present. Doctors also may need to take small samples of tissue from the stomach or intestines to detect diarrhea-causing organisms or determine if cancer is present. These tests can identify the cause of diarrhea in most people with AIDS.
Treatment
If doctors identify an organism as the cause of a person's diarrhea, they prescribe the antibiotics known to be effective against that organism. There is no established treatment to combat diarrhea caused by Cryptosporidium or micro-sporidia. However, in some people with AIDS, Crypto-sporidium diarrhea goes away without treatment. Whether or not a microbe can be identified as the cause of diarrhea, patients should receive symptomatic treatment such as antidiarrheal agents, and fluids and nutrients by mouth or through a vein to replace what is expelled in their diarrhea. It is helpful for patients to have counseling about their diet, emphasizing the importance of adequate fluid intake as well as small, frequent nutritious meals. Most patients with diarrhea should avoid gas-causing foods, fats and dairy products.
Maintenance and Preventive Therapy
Diarrhea caused by certain bacteria may require lifelong treatment with oral antibiotics to prevent it from coming back. This is called maintenance therapy. A U.S. Public Service task force recommended that people who have MAC should be treated with at least two drugs, one of which should be either azithromycin or clarithromycin.
In addition, the task force recommended that people infected with HIV (the virus that causes AIDS) who have fewer than 100 CD4+ T cells should be treated with rifabutin to prevent an initial episode of MAC. (CD4+ T cells are the crucial immune cells targeted by HIV.) Drug regimens to prevent the other causes of infectious diarrhea are not recommended at this time.
Reply With Quote Quick reply to this message
  #7  
Old 11-29-2014
USMLE Forums Master
 
Steps History: ---
Posts: 868
Threads: 78
Thanked 360 Times in 208 Posts
Reputation: 370
Romania Hi

Quote:
Originally Posted by hardtime View Post
If question gives a scenario of AIDS with CD count < 20 and patient is having progressive watery diarrhea. Stool sample staining with acid fast stain shows multiple organisms. What should be the answer.
a) C. parvum
b) E. histolytica
c) G .Lamblia
d) M. tuberculosis
There are many possible causes of diarrhea in people who have AIDS. The most common infectious organisms causing AIDS-related diarrhea include cytomegalovirus (CMV); the parasites Cryptosporidium, microsporidia and Giardia lamblia; and the bacterium Mycobacterium avium-intracellulare (MAC). Other bacteria and parasites that cause diarrheal symptoms in otherwise healthy people may cause more severe, prolonged or recurrent diarrhea in people with HIV or AIDS.



GIARDIA LAMBLIA

Last edited by ginseng plus; 11-29-2014 at 12:33 PM.
Reply With Quote Quick reply to this message
  #8  
Old 11-30-2014
USMLE Forums Scout
 
Steps History: 1+CK+CS+3
Posts: 20
Threads: 2
Thanked 18 Times in 9 Posts
Reputation: 28
I agree Crypto

Should be C.parvum
Acid fast(yes, the oocyst are passed in stool which are acid fast)
Commonest cause of Diarrhea in AIDS

Why not M.tb
Not the commonest cause of Diarrhea in AIDS.Rather MAC is common..

Though the the word organism is trivial here but at CD count less than 100( <20 as in quesn), C. parvum seems to be best choice..

Quote:
Originally Posted by hardtime View Post
If question gives a scenario of AIDS with CD count < 20 and patient is having progressive watery diarrhea. Stool sample staining with acid fast stain shows multiple organisms. What should be the answer.
a) C. parvum
b) E. histolytica
c) G .Lamblia
d) M. tuberculosis
Reply With Quote Quick reply to this message
The above post was thanked by:
ginseng plus (12-06-2014)
  #9  
Old 12-02-2014
shaarang_93's Avatar
USMLE Forums Scout
 
Steps History: Step 1 Only
Posts: 69
Threads: 2
Thanked 55 Times in 26 Posts
Reputation: 65
Default

The word organism is not at all ambiguous in my opinion. An ovum is basically a reproductive form of C. parvum and is living, therefore technically, a single celled organism.
Reply With Quote Quick reply to this message
  #10  
Old 12-06-2014
USMLE Forums Master
 
Steps History: ---
Posts: 868
Threads: 78
Thanked 360 Times in 208 Posts
Reputation: 370
Post Hi

Quote:
Originally Posted by shaarang_93 View Post
The word organism is not at all ambiguous in my opinion. An ovum is basically a reproductive form of C. parvum and is living, therefore technically, a single celled organism.
Only organism that can cause diarrhea in HIV patients, and have following characteristics like :

Acid fast cysts seen in stool especially when CD4 is less than 200, Basophilic clusters on the surface of the intestinal mucosa, non-bloody diarrhea >>>>>>>>>>>>>>>>>>>>>>>> Cryptosporidium
Reply With Quote Quick reply to this message
  #11  
Old 12-09-2014
USMLE Forums Newbie
 
Steps History: Not yet
Posts: 9
Threads: 5
Thanked 3 Times in 2 Posts
Reputation: 13
Default

Quote:
Originally Posted by hardtime View Post
Q stem says organisms in stool not ovum......Cryptosporidium ovum are acid fast but they as an organism not...its the only thing which confuses me??shouldnt MTB be the ans.
it cnt be MTB cos the mycobacterium specie we see in AIDS patient is mycobaterium avum intracelullare and mycobacterium kanssassi , plus the punch for cryptosporidium is acid fast oocyte in smear
Reply With Quote Quick reply to this message
  #12  
Old 1 Week Ago
USMLE Forums Newbie
 
Steps History: ---
Posts: 1
Threads: 0
Thanked 0 Times in 0 Posts
Reputation: 10
Default gasteroenterology

Could anyone tell me non-GIT causes of diarrhoea?
Reply With Quote Quick reply to this message



Reply

Tags
Microbiology-, 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
Study Aids drpisho USMLE Step 1 Forum 4 07-22-2013 03:01 PM
CMV treatment in pt with AIDS Casandra USMLE Step 1 Forum 4 08-05-2012 11:12 PM
AIDS w/ a CD4 count <50 ujustgotdoctored USMLE Step 1 Forum 5 08-18-2011 06:57 PM
MCC of diseases in AIDS yasirsattar75 USMLE Step 1 Forum 0 08-15-2011 03:33 AM
Diarrhea in AIDS docoftheworld USMLE Step 2 CK Forum 2 06-05-2011 04:26 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)