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Oral Glucose Tolerance Test Private Clinic Recommendations?

Personally, I would go back to my GP, and ask for a referral to a specialist endocrinologist who has experience in blood glucose issues, especially if you have a rare condition. Do you know the reason why your private specialist wants a glucose tolerance test?
If you don't, find out!

As for the OGTT, the two hour test is usually used to help understand why T2s have diabetes, insulin resistance and so on.
This may not tell the whole story.
In my case, I needed about ten blood panel tests during my extended OGTT (up to five hours), including c-peptide, GAD. My blood was taken prior, during and after I went hypo! My finger prick testing was every half hour, then my second and third eOGTT test every fifteen minutes.
 
Could posters please note post #6, where @Eadenhall declares a genetic anomaly leading to Beta Thallacaemia, so the usual tests my be unreliable. These tests have been requested by a private specialist.
 
I am really touched by the kindness of the people here - I cant thank you enough.

The need for the OGTT is to bypass the blood Hemaglobin as my Beta Thallasaemia trait might be interfering with the HbA1c readings. So we did the Fasting Plasma Glucose test (advised by my GP as they dont do the OGTT there) and my Specialist is recommending I do the OGTT privately.

I have heard back from Medichecks and they can either offer me their OGTT with the following:

Fasting Glucose
Blood Glucose (0.5 Hrs)
Blood Glucose (1.0 Hrs)
Blood Glucose (1.5 Hrs)
Blood Glucose (2.0 Hrs)
+ 1 Insulin test (additional £49)

or their special package 'Glucose Tolerance and Insulin test' which is the following:

Fasting Glucose
Blood Glucose (1.0 Hrs)
Blood Glucose (2.0 Hrs)
Insulin (1.0 Hr)
Insulin (2.0 Hr)

So the second option loses the blood glucose tests at 0.5 hour marks, but includes the two insulin tests.

Which might be the best option for me out of these two?

My sincerest thanks

David
 
I am really touched by the kindness of the people here - I cant thank you enough.

The need for the OGTT is to bypass the blood Hemaglobin as my Beta Thallasaemia trait might be interfering with the HbA1c readings. So we did the Fasting Plasma Glucose test (advised by my GP as they dont do the OGTT there) and my Specialist is recommending I do the OGTT privately.

I have heard back from Medichecks and they can either offer me their OGTT with the following:

Fasting Glucose
Blood Glucose (0.5 Hrs)
Blood Glucose (1.0 Hrs)
Blood Glucose (1.5 Hrs)
Blood Glucose (2.0 Hrs)
+ 1 Insulin test (additional £49)

or their special package 'Glucose Tolerance and Insulin test' which is the following:

Fasting Glucose
Blood Glucose (1.0 Hrs)
Blood Glucose (2.0 Hrs)
Insulin (1.0 Hr)
Insulin (2.0 Hr)

So the second option loses the blood glucose tests at 0.5 hour marks, but includes the two insulin tests.

Which might be the best option for me out of these two?

My sincerest thanks

David

This is not a recommendation; it can only be your decisions, if you elect to compromise, but we're I in your shoes, I would choose the latter, but in the meantime, I would buy a blood glucose resting kit and strips, and test my blood every 15 minutes through the OGTT. A finger prick test only takes seconds to perform but would go some way towards filling in the blanks.

Are you rejecting the C-Peptide test?

I hope you can secure the discount too.
 
During the Specialist's appointment he mentioned the C-Peptide test, but said that we can do the OGTT and see what the result is first before seeing if the C-Peptide test is required. However, I must say that after being on here, I have far more faith in the opinions of you guys! I very much feel the 'sales' mentality of his team.
 
Personally, and you do have to make your own decisions.
I would get the insulin tests before the c-peptide.
The insulin response to the glucose is often overlooked and could explain a lot of the issues that certain people can experience.

But, I would still ask my GP for a referral.
 
With absolute thanks to everyone that has taken their valuable time to help me, I have now booked the OGTT and the Insulin test.
I wouldn't have known where to begin here, and with your help I feel so much more confident about all this.
Is it bad etiquette to return here after my tests if I am confused on certain results? I dont want to outstay my welcome.

My sincerest thanks

David
 
With absolute thanks to everyone that has taken their valuable time to help me, I have now booked the OGTT and the Insulin test.
I wouldn't have known where to begin here, and with your help I feel so much more confident about all this.
Is it bad etiquette to return here after my tests if I am confused on certain results? I dont want to outstay my welcome.

My sincerest thanks

David

I think people will be interested to see/hear your results.

Edited to make it make sense. Autocorrect has much to answer for!
 
Last edited:
With absolute thanks to everyone that has taken their valuable time to help me, I have now booked the OGTT and the Insulin test.
I wouldn't have known where to begin here, and with your help I feel so much more confident about all this.
Is it bad etiquette to return here after my tests if I am confused on certain results? I dont want to outstay my welcome.

My sincerest thanks

David

Please do!
In certain that a lot of information can be gotten from the results.
Ask and record your blood glucose readings as they are done, before and during the test.
If it is a standard two hours test, it might be prudent to test afterwards, to see what happens at two and a half, three hours, and four hours.
Because my condition is quite rare, I have had quite a few eOGTT tests. It helped with understanding what, why and how my body does what it does when I eat or drink.
This, I believe is what you are after, answers.

Best wishes
 
I am only just seeing this. What happened and did yo find somewhere to get test done? I have contacted BioLAb as I want a 4 hour glucose tolerance test so I can work with E-4 Alive in the States, so do much more detailed test than just the Hba1c! I did keto and it did me no good, so I need some more informed advise than you get form the GP.
 
I am only just seeing this. What happened and did yo find somewhere to get test done? I have contacted BioLAb as I want a 4 hour glucose tolerance test so I can work with E-4 Alive in the States, so do much more detailed test than just the Hba1c! I did keto and it did me no good, so I need some more informed advise than you get form the GP.

This is a thread more than a year old, the OP never came back to tell us the results.

I can only assume that you don't want to start a thread, so that it is seen by more people.
In response, why do you need a extended OGTT?
As far as a vegan diet, I'm not going to be any good at all.
But I have heard it is quite difficult to stay low enough on a vegan diet.
I can only imagine that you didn't go low carb enough to make a difference.

With type two, you need a balance of protein and good fats, with carbs that your blood sugar levels can tolerate, without causing more insulin resistance and spiking high.

Hope this helps.
 
Perhaps explaining where you are geographically would help as this is an international forum. Not much use getting details for another country.

What is E4 alive? and why is an extended OGTT is necessary? Why wasn’t keto wasn’t good for you ? This might get you some helpful replies too.
 
I am really touched by the kindness of the people here - I cant thank you enough.

The need for the OGTT is to bypass the blood Hemaglobin as my Beta Thallasaemia trait might be interfering with the HbA1c readings. So we did the Fasting Plasma Glucose test (advised by my GP as they dont do the OGTT there) and my Specialist is recommending I do the OGTT privately.

I have heard back from Medichecks and they can either offer me their OGTT with the following:

Fasting Glucose
Blood Glucose (0.5 Hrs)
Blood Glucose (1.0 Hrs)
Blood Glucose (1.5 Hrs)
Blood Glucose (2.0 Hrs)
+ 1 Insulin test (additional £49)

or their special package 'Glucose Tolerance and Insulin test' which is the following:

Fasting Glucose
Blood Glucose (1.0 Hrs)
Blood Glucose (2.0 Hrs)
Insulin (1.0 Hr)
Insulin (2.0 Hr)

So the second option loses the blood glucose tests at 0.5 hour marks, but includes the two insulin tests.

Which might be the best option for me out of these two?

My sincerest thanks

David


Hi David
Hope all goes well with you
Can you please kindly share the clinic you went to for the tests mentioned above ( presume this is somewhere in London?)
I have emailed Medichecks, they came back to me in few hours unfortunately they don't offer OGTT test ( anymore ?)
The only one they are doing at the moment is
Insulin Resistance Blood Test
I am about to email them back to find out as what is included in the test
I am new to this area please bear with me if any silly questions
Thanks for your help in advance
Kind Regards
Danni
 
Hi David
Hope all goes well with you
Can you please kindly share the clinic you went to for the tests mentioned above ( presume this is somewhere in London?)
I have emailed Medichecks, they came back to me in few hours unfortunately they don't offer OGTT test ( anymore ?)
The only one they are doing at the moment is
Insulin Resistance Blood Test
I am about to email them back to find out as what is included in the test
I am new to this area please bear with me if any silly questions
Thanks for your help in advance
Kind Regards
Danni

Hi and welcome to the forum,
Can I ask for more details as diabetes is not usually diagnosed through an oral glucose tolerance test.
Or was your last GP asked you to get one done?
If you have just moved, you can register to a new GP, get an appointment and see what your new GP says

Stay safe
 
Hi and welcome to the forum,
Can I ask for more details as diabetes is not usually diagnosed through an oral glucose tolerance test.
Or was your last GP asked you to get one done?
If you have just moved, you can register to a new GP, get an appointment and see what your new GP says

Stay safe
Hi all, not sure if anyone is available to reply several years after this post was started, but let’s see!

I have a diagnosis of PCOS and have only recently become aware that a common symptom is insulin resistance. I’ve struggled for years with what I now think might be reactive hypoglycaemia - basically after taking in too much sugar I very quickly start to feel like my blood sugar has plummeted - I get shaky, anxious, hot flashes, nauseous, etc. I try to manage this as best I can by being mindful of my diet but it still happens from time to time and the symptoms have started to feel worse and last for longer.

I have been to my GP about this (in the UK) and they did an HbA1c which came back in normal range. My understanding is this test won’t necessarily show insulin resistance, but my GP won’t investigate further because of the ‘normal’ results. So I’m looking into how to get tested privately for insulin resistance.

Various forums tell me an oral glucose/insulin tolerance test is the best to go for, does anyone have advice on where I might access this? I saw Medichecks was suggested a few years ago but they don’t seem to have it anymore, instead they have an insulin resistance test which “Measures random glucose, insulin, fasting insulin, and fasting insulin resistance index to evaluate how effectively your body uses insulin and regulates blood sugar”

Not sure how similar this is or if it would still be worth doing. Would welcome any advice!! Thank you
 
Hi all, not sure if anyone is available to reply several years after this post was started, but let’s see!

I have a diagnosis of PCOS and have only recently become aware that a common symptom is insulin resistance. I’ve struggled for years with what I now think might be reactive hypoglycaemia - basically after taking in too much sugar I very quickly start to feel like my blood sugar has plummeted - I get shaky, anxious, hot flashes, nauseous, etc. I try to manage this as best I can by being mindful of my diet but it still happens from time to time and the symptoms have started to feel worse and last for longer.

I have been to my GP about this (in the UK) and they did an HbA1c which came back in normal range. My understanding is this test won’t necessarily show insulin resistance, but my GP won’t investigate further because of the ‘normal’ results. So I’m looking into how to get tested privately for insulin resistance.

Various forums tell me an oral glucose/insulin tolerance test is the best to go for, does anyone have advice on where I might access this? I saw Medichecks was suggested a few years ago but they don’t seem to have it anymore, instead they have an insulin resistance test which “Measures random glucose, insulin, fasting insulin, and fasting insulin resistance index to evaluate how effectively your body uses insulin and regulates blood sugar”

Not sure how similar this is or if it would still be worth doing. Would welcome any advice!! Thank you
It might be better to start with testing your blood glucose after eating - the OP was out of the usual even for this forum.
Reactive hypoglycaemia should show up with the results of blood glucose checks on a normal meter - or you could see if there are any free trials of continuous monitors available as that would show the peaks and troughs in graphic form.

The HbA1c levels only indicate the average concentration of blood glucose and you'd see the same number if averaging 49 and 51 or 40 and 60 or 1 and 99.
 
Hi all, not sure if anyone is available to reply several years after this post was started, but let’s see!

I have a diagnosis of PCOS and have only recently become aware that a common symptom is insulin resistance. I’ve struggled for years with what I now think might be reactive hypoglycaemia - basically after taking in too much sugar I very quickly start to feel like my blood sugar has plummeted - I get shaky, anxious, hot flashes, nauseous, etc. I try to manage this as best I can by being mindful of my diet but it still happens from time to time and the symptoms have started to feel worse and last for longer.

I have been to my GP about this (in the UK) and they did an HbA1c which came back in normal range. My understanding is this test won’t necessarily show insulin resistance, but my GP won’t investigate further because of the ‘normal’ results. So I’m looking into how to get tested privately for insulin resistance.

Various forums tell me an oral glucose/insulin tolerance test is the best to go for, does anyone have advice on where I might access this? I saw Medichecks was suggested a few years ago but they don’t seem to have it anymore, instead they have an insulin resistance test which “Measures random glucose, insulin, fasting insulin, and fasting insulin resistance index to evaluate how effectively your body uses insulin and regulates blood sugar”

Not sure how similar this is or if it would still be worth doing. Would welcome any advice!! Thank you
It is a similar story of many posters that have posted.
I do agree that if you had the tests other than the blood panel for hba1c. Maybe it wasn't a full blood panel. That is probably why the insulin numbers were not done.
They do cost more than the hba1c to the NHS, but with hypoglycaemia, it only tells you that you don't have hyperglycaemia.
I always say Hypoglycaemic conditions as there is a few different one.
Mine is Non diabetic Late Reactive Hypoglycaemia (RH for short).
You will need a blood glucose monitor as @Resurgam said, a CGM is a lot better.
This will help in so many ways.
I was extremely lucky to get a specialist endocrinologist that had an idea on what to test for.
I had to get a referral from a GP but that was over a decade since.
You can persuade your GP, if you have the readings of persistent Hypoglycaemia from a CGM and probably a food diary. If it showing hypoglycaemia, that should be enough. RH is becoming more well known.
With a CGM, you can start testing yourself at home. It is not the standard way from hospital tests but recording results pre meal and the hour by hour of your blood glucose levels.
If you are still getting nowhere you may have to go private,there is some very good specialist endocrinologist out there. Just hope if you do that you get the right one, rather than the idiot one I got back in 2007.
If everything else fails, there is already advice on the threads that you can control the symptoms by a change in dietary approach and without diagnosis there is such a lot to keep you healthier.

If ever you do get diagnosis, I can advise further.
Keep battling for that referral.

RH is condition where you react to what you put in your body, mainly gfood or drink. And if your body can tolerate them. And it is mainly carbs and sugars.

Best wishes.
 
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