what is the diagnosis help me plzzzzz......

what is the diagnosis help me plzzzzz......

Lactose intolerance is best diagnosed with a methane breath test
1
50%
Lactose intolerance is commonest in white Northern Europeans
1
50%
Lactose intolerance is treated by glucose and galactose replacement therapy
0
No votes
Lactose is degraded to glucose and fructose by lactase
0
No votes
Rotavirus infection may precipitate the diagnosis of lactose intolerance
0
No votes
 
Total votes: 2

Mohammed x.man
Active Member
Active Member
Posts: 85
Joined: 20 Nov 2011, 21:19
University & College: OIU, MBBS
Country & City: Omdurman
Graduation Year: 2008
Plan \ Working On: MRCP
Speciality: General Medicine
Job Title (other): SHO
Work Place: Khartoum
Has thanked: 13 times
Been thanked: 5 times
Contact:

what is the diagnosis help me plzzzzz......

Unread post by Mohammed x.man »

Which of the following statements regarding lactose intolerance is correct?
thuraiaibrahim
Contributor
Contributor
Posts: 153
Joined: 06 Jul 2010, 06:47
University: Khartoum University
Degree (College): MBBS
Graduation Year: 2004
Plan \ Working On: MRCP
Speciality: General Medicine
Job Title: SHO (Medical or Resident)
Work Place: KSA
Madina-Shajwa-PHC
Has thanked: 40 times
Been thanked: 16 times
Contact:

Re: help me plzzzzzzz...........

Unread post by thuraiaibrahim »

In a hydrogen breath test, after an overnight fast, 25 grams of lactose (in a solution with water) is swallowed. If the lactose cannot be digested, enteric bacteria metabolize it and produce hydrogen, which, along with methane, if produced, can be detected on the patient's breath by a clinical gas chromatograph or compact solid-state detector. The test takes about 2 to 3 hours to complete.
The frequency of decreased lactase activity ranges from 5% in northern Europe through 71% for Sicily to more than 90% in some African and Asian countries.[6] This distribution is now thought to have been caused by recent natural selection favoring lactase persistant individuals in cultures that rely on dairy products.[7] While it was first thought that this would mean that populations in Europe, India, and Africa had high frequencies of lactase persistence because of a particular mutation, it has now been shown that lactase persistence is caused by several independently occurring mutations.
four general principles in dealing with lactose intolerance — avoidance of dietary lactose, substitution to maintain nutrient intake, regulation of calcium intake and use of enzyme substitute.[25]

Lactose is degraded to glucose and galactose by lactase
These users thanked the author thuraiaibrahim for the post:
Mohammed x.man
Image[/url]
Post Reply

Return to “Quizes & Questions”