Glucose tolerance test

What is Glucose tolerance test?

The oral glucose tolerance test (OGTT) measures the body's ability to use a type of sugar, called glucose, that is the body's main source of energy. An OGTT can be used to diagnose prediabetes and diabetes.

Questions and answers on "Glucose tolerance test"

does a low sugar or "sugar free" diet cause clay colored stool (or diarhhea) i have a glucose intolerance or "carbohydrate synsitvity" as they have both been described to me and wanted to know if my new diet is the cause of my different colored stool?

doctor1 MD

Hi thank you for querry,
as you mentioned your sypmtoms,
Clay coloured stool along with dark coloured urine mostly occur in obstuctive jaundice.
proper work up required to rule out underlying pathology.
Ultrasound abdomen
Direct and indirect bilirubin
LFTs
Because the bile which give the colour...

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Glucose Tolerance Test = 134 during pregnancy of week 23 is normal or abnormal? what are the problems behind this

doctor1 MD

Brief Answer:
Glucose challenge test or glucose tolerance test

Detailed Answer:
Hi, I am here to help you.

You have just mentioned one reading which in all likelihood is not glucose tolerance test but glucose challenge test.Glucose challenge test is a screening test and value 134 is normal but if...

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Hi. I am 24 weeks pregnant. My gynae advised me to get Oral glucose tolerance test with 75 gm of glucose after 2 hrs. pfa my reports of the same and kindly advise.

doctor1 MD

Brief Answer:
Precautions advised

Detailed Answer:
Hello Mrs Dhanjeet , Welcome back to HCM. Thanks for writing into o us with your health query. The glucose tolerance test is a little bit over the line so that it predisposes you to gestational diabetes. Don't worry it is avoidable and can be...

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I am a high anxiety person. I have panic attacks. At any rate I got worried about my blood sugar for some reason. I got a tester. My fasting is always perfect like 85. I have lost some weight in the last few months because of worry of eating. This morning I checked my fasting and it was 85. I ate a piece of toast and drank an ensure. I tested one hour later and it was 185! Do I need to worry? Was that too soon to check? I know I sound crazy.

doctor1 MD

Brief Answer:
there is no sign of diabetes

Detailed Answer:
Hello,

85 is perfect for a fasting measurement (as you've pointed out).
185 measured 1 hour after a meal is not ideal but it's not too high. I wouldn't worry with these measurements and I would recommend a yearly fasting measurement...

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hello Sir
where is the risk of type 2 diabetes? actually still I have checked my sugar level randomly & the result was 176. is it risky or not? please advise.

doctor1 MD

Brief Answer:
Get Glucose tolerance test done.

Detailed Answer:
Hi Sir, gone through your query and understood your concerns.

Sir, The random blood sugar value of 176 is theoretically on higher side. But Practically the time gap after eating food decides the sugar level. If the sugar level of 176...

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I ate at a new restaurant Thru. afternoon and when I returned home I felt real fatigue. I have not been having any problem with by bs I check it almost every morning. My numbers were always below 120. I at this time am not taking any blood sugar meds. Yesterday my BS was 250+ I also drank 2 beers on Wed.
I have recently had my left foot amputated and stumbled making the stump swell.
What do you think the cause would be for my elevated sugar?\

XXXXXXX

doctor1 MD

Brief Answer:
Glucose tolerance test is advised.

Detailed Answer:
Hi, I had gone through your query and understood your concerns.

The blood sugar level if Fasting early in the morning, should be less than 110 to say it normal. 110 to 126 is pre diabetic value.

The sugar level after 2hrs of eating...

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I am 26 weeks pregnant and I had failed the 1 HR glucose screening with a score of 170. I recently took the 3 hr glucose tolerance test the other day and my results were as follows. I need help determining if I have gestational diabetes. although I looked up the normal ranges online and I seem to have fallen beneath the cut off. I just need some clarification on this please. It was also after drinking the 100mg of glucola. also, all 4 of the urine samples taken per hour were negative for glucose. Thank you so much for your assistance!

0 hr (fasting glucose) : 74
1 hr : 153
2 hr: 141
3hr: 63

doctor1 MD

Brief Answer:
No Gestational Diabetes

Detailed Answer:
Dear Lhuttula,

Your 1 hour screening glucose test is rather high which should have been under 140. However, it is a screening test which suggests the need for full Glucose Tolerance Test; which you have already undergone.

Your all the...

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I am a male 78yrs old. I am on these medications: for BP = amlong A (1-0-0)+ Losacar25(0-0-1). Clopivas AP75, Storfib, Alfoo, Polybion, Rantac D, Looz/Cremalax, and SOS-Ativan 1mg 1/2 tab.
My blood sugar: Fasting 110, PDP 120. Random-140.
Do I have to take any medication for diabetes/ If yes, which one and how much?

doctor1 MD

Brief Answer:
Pre-diabetes, you may not require medication for it.

Detailed Answer:
Hi,

Thanks for your question.

Noted your question.

Your Fasting Blood Sugar level denotes Impaired Fasting Glucose (IFG) which is a part of Pre-diabetes.
But your Postprandial blood Glucose level & Random Blood...

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My ultrasound and lmp are four days different. My LMP was 12-16 but my ultrasound is saying it was12-12. I had a 20 week ultrasound and the doctor changed my due date to 9-17. Why? Also when I found out I was pg my hcg level was 258, how far along was I then?

doctor1 MD

Brief Answer:
Every thing within normal limits

Detailed Answer:
Dear XXXXXXX

Please do not get disturbed by a difference of dates in clinical method and ultrasonography.

The ultrasonography estimates the age of the baby by its different measurements. This can have a variation of about 4-7 days...

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I currently went to get a second opinion of my concern of possibly being diabetic. My fasting blood sugar came back 101 which they said is higher then it should be. My A1c was again a 4.8. Why would one test be good but the other one not good? Is there anything i can do to lower my blood sugar until i can get back in? Thank you.

doctor1 MD

Brief Answer:
Glucose tolerance test

Detailed Answer:
Good day.
Noted your question.
Fasting sugar and Hba1c are not always linear. which means that Fasting sugars can be elevated but with a normal Hba1c. your Fasting glucose is above 100 which indicate Impaired Fasting glucose. May I suggest...

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Recent questions on  Glucose tolerance test

doctor1 MD

Hi, I am 25 yr old Man. I experience, Hypoglycemic kind of symptoms like dizziness, difficulty in concentration, mood swings, numbness in limbs, drowsiness, feeling hungry after 2 hours of intake of meals. After having insisted my Ayurvedic doct, I got OGTT done, but it doesnt show any low blood sugar. I was confused untill I came across this Ideopathic postprandial syndrome. Do you think this could possibly be the reason. Please advice me.

doctor1 MD

Hi, I have been asked to take more detailed tests for diabetes or pre-diabetes . My current plasma glucose level is 5.0 fasting. Is an oral glucose tolerance test more accurate or would lead to a better idea of my condition than the HbA1c test?...

doctor1 MD

does a low sugar or "sugar free" diet cause clay colored stool (or diarhhea) i have a glucose intolerance or "carbohydrate synsitvity" as they have both been described to me and wanted to know if my new diet is the cause of my different colored stool?

doctor1 MD

she is 3.4 years as of now, she developed some power in left eye. thus we had doubt if she develop Type 2 diabetes , when checked today post lunch her sugar level was 155. Her mother having type 2 diabetes since 5 years and taking insulin , even...

doctor1 MD

My Little brother's SGPT value is 133, Alkaline Phosphatase is 103 and GGT is 65. He is in his 20s. Can someone interpret this for us until we get him to see a doctor tomorrow? Thank you.

doctor1 MD

My daughter is 16. She has been diagnosed with hypothyroidism, sinus tachachardia, chronic costas chondritis, glucose intolerance, and low vitamin D. She takes levothryoxine, sulindac and metformin daily. She has struggled with chest pain for 4 years. She has seen cardiologists and general physicians. Is a rheumatologist the next step? She needs to get off these drugs and be able to be a normal teen that is not in pain all the time. Have you ever heard of a kid with this costas chondritis that cannot be cured?

doctor1 MD

My legs and knees and inner thigh and even buttocks aching for two days and nights. I am very tired and a bit emotional. Been trying spiralina drink once a day, and swalk swam 4 days ago. Eases off with Panadol but comes back in a couple of hours. Feeling unwell, lethargic and had 7.1 ogtt reading. What should I do now about the heavy legs and aches. Thanks

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Dr. Andrew Rynne
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Hi, I am Dr. Andrew Rynne (Family Physician). I will be guiding you through the process. Please write your question below.

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