Lactose IntoleranceTest
#361647 - 10/23/10 05:00 AM
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debbylev
Reged: 04/08/10
Posts: 28
Loc: SC
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I took the lactose intolerance test yesterday.Doctor said it would also tell if I had an intolerance to fruit and vegetables. I drank the solution and the hydrogen meter never moved over a 1 from 8am until we stopped at 2pm. I did the breath test every hour. So everything seems to be negative. After being home for four hours I felt dizzy, nauseous, gassy and D. I am wondering if this was a delayed reaction to the test as I seem to digest everything so slowly. Does anyone know if you develop those symtpoms just normally when the test is negative. I searched all over the internet and cannot seem to find an answer and I cannot reach the doctor's office until Monday and I still feel somewhat yucky today. Thank you to anyone who might be able to help.
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Debbie
IBS-C
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Did they give you the results of the test? You might want to ask for clarification about the fruit and veggies comment. This sounds rather strange unless you had a fructose malabsorption tests at the same time which is unlikely. They give you a fairly good dose of lactose to drink and known side effects are diarrhea and abdominal pain.
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STABLE: ♂, IBS-D 50+ years - Science of IBS
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She said the meter never went above a 1 for every hour tested. It should register over a 20 by the end of the six hours for a positive so my numbers were negative as all six added up to a six. I did question the fruits and vegetables as part of the testing and she said the lactose and the hydrogen readings and the results for both would be considered negative. They did not tell me I could/would get sick later on but kept asking through the test period if I felt nauseous, dizzy or crampy (which I didn't until much later). That is why I was wondering if there was a delayed reaction because of my slow stomach. Thank you for your help and response as it didn't make sense to me to get so sick four hours after the test was finished.
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Debbie
IBS-C
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What did she mean by "the lactose and the hydrogen readings and the results for both would be considered negative" and the relationship to fruits and veggies? If you are lactose intolerant then hydrogen shows up in your breath from the fermentation of lactose in the colon. It has nothing to do with fruits and veggies. What do you thing she was talking about?
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STABLE: ♂, IBS-D 50+ years - Science of IBS
The FODMAP Approach to Managing IBS Symptoms
Evidence-based Dietary Management of Functional GI Symptoms: The FODMAP Approach
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She said the hydrogen breath test would show if there was fructose or lactose malabsorption and if there was a sibo. She said the hydrogen levels on the meter would determine if it was one of these or all three. The readings would have had to have been over 20. She also mentioned that the methane reading was oo low. When she would put the bag onto the machine the needle barely moved to the one even after 6 hours of testing. I do not know what solution they gave me to drink but it was white and very sweet. I hope if I get to talk to them on Monday they will clarify these test results. The doctor had already left and the nurse said he would call me Monday if I don't hear from him by Monday afternoon I will call him as I have the same questions about testing for both at the same time. I did ask before I went specifically about the test to determine the intolerance for fruit and veg and was assured they would be testing for that - I do hope they did.
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Debbie
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Ah - interesting. It sounds like they gave you a lactose, fructose and SIBO tests all together. I have never heard of this being done. I always wondered if it could be done successfully. I always thought the 2-3 days preparatory dietary restrictions before the tests were somewhat different. When you see you doc could you confirm that they gave you all three test at once and that the solution you drank contains lactose, fructose and glucose? I find this very interesting. Thanks
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STABLE: ♂, IBS-D 50+ years - Science of IBS
The FODMAP Approach to Managing IBS Symptoms
Evidence-based Dietary Management of Functional GI Symptoms: The FODMAP Approach
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I will be sure to ask - I did have a two day fast with tuna fish, french bread (had to be fresh bakery made), jello, spinach and squash only eaten in very small amounts for two days before. Only water to drink, no teas or medications allowed. I'll give an update when I speak to him.
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Debbie
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I spoke with my doctor yesterday. He says that they used lactulose for the test and he can get results for all using this. The dietary sugars lactose, sucrose, fructose or sorbitol, any production of hydrogen means that there has been a problem with digestion or absorption of the test sugar. This is the explanation given. He wants to see me back again and talk about running a radioactive dye test for slow digestion as he thinks my bad reaction to the lactulose could be due to slow digestion. I don't know yet if I will follow through with this test but I am going to give the FODMAPS approach a try this week. I set my start date for Monday and see how I do from there.
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Debbie
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Thank you for the insight. It seems he only tested for SIBO and assumed that SIBO is responsible for the fructose and lactose intolerance which sounds a bit strange. Good luck with the next appointment.
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STABLE: ♂, IBS-D 50+ years - Science of IBS
The FODMAP Approach to Managing IBS Symptoms
Evidence-based Dietary Management of Functional GI Symptoms: The FODMAP Approach
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Thank you for the insight. It seems he only tested for SIBO and assumed that SIBO is responsible for the fructose and lactose intolerance which sounds a bit strange. Good luck with the next appointment.
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STABLE: ♂, IBS-D 50+ years - Science of IBS
The FODMAP Approach to Managing IBS Symptoms
Evidence-based Dietary Management of Functional GI Symptoms: The FODMAP Approach
FODMAP Chart & Cheatsheet
The Role of Food & Dietary Intervention in IBS
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Just thought I would pass along that my doctor called this morning. I told him my reaction - I was sick for two days - and he said that due to slow motility and slow digestion it was not uncommon to test positive long after leaving the office. He said in his opinion that did show I did have an intolerance to lactose, sucrose, fructose but he did not think SIBO. He said all were tested. I have to make another appointment to go in and he wants to speak with me about dietary guidelines and some other things he wants me to try for the IBS and intolerances. I told him I had been following Heather's guidelines and was looking to incorporate the FODMAPS approach as well. He agreed and wants me to bring them in for him to see and review with me. I think he is finally listening
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Debbie
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I am pleased to hear you have a doctor that pays attention and is willing to be flexible. You are fortunate. It took me many years for find a good GP - I have yet to find a good GI doc.
I am confused about something. You might ask the doc to explain how a lactulose breath test is used to check for sugar intolerances. It is my understanding that the lactulose test is for SIBO only and that fructose and lactose malabsorption can exist independent of SIBO. They require their separate tests.
There is something else that puzzles me. Over the past few years a number of researchers have shown the lactulose test for SIBO in IBS patients is suspect. Here is the abstract of one of the latest article. During a UNC chat which are advertised here from time to time, I had a chance to ask Dr. Drossman, an internationally known GI doctor and researcher, if there was a reliable way to diagnose for SIBO in IBS patients. He said the use of glucose instead of lactulose is more reliable. You might gently ask for clarification on this issue without questioning his authority 
If you have an email address I can send you a pdf copy of the complete FODMAP article as published in the journal Advances in Clinical Practice. It is specifically written for doctors. I think he may find it interesting.
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STABLE: ♂, IBS-D 50+ years - Science of IBS
The FODMAP Approach to Managing IBS Symptoms
Evidence-based Dietary Management of Functional GI Symptoms: The FODMAP Approach
FODMAP Chart & Cheatsheet
The Role of Food & Dietary Intervention in IBS
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Thank you so much for the information. I try to look these up and stay educated but I do get a bit confused with all of the information out there. Here is my e-mail address dglev@bellsouth.net
I hope when I am feeling better, and I will be I can come here and help someone else the way I have been helped.
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Debbie
IBS-C
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Sent - nt -
#361693 - 10/25/10 05:46 PM
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Syl
Reged: 03/13/05
Posts: 5499
Loc: SK, CANADA
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STABLE: ♂, IBS-D 50+ years - Science of IBS
The FODMAP Approach to Managing IBS Symptoms
Evidence-based Dietary Management of Functional GI Symptoms: The FODMAP Approach
FODMAP Chart & Cheatsheet
The Role of Food & Dietary Intervention in IBS
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