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Doctor insights on: Sugar In Urine But Not In Blood

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What is the causes of sugar in urine without sugar in blood too?

What is the causes of sugar in urine without sugar in blood too?

Blood sugar swings: Sugar in the urine means that the blood sugar has been over 180 in the past few hours or since the last time someone urinated. So, by the time they urinate and find there is sugar in the urine, the blood sugar may have gone down to normal. ...Read more

Urine (Definition)

Urine is the product of the kidneys, which is produced to eliminate the waste products of metabolism, manage body fluid balance, &maintain acid-base balance. The blood is first filtered by the kidneys, and the composition of the resulting fluid is then altered depending on the body's needs. It is composed of mostly water, and breakdown products from blood cells impart ...Read more


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Mychild 3.5y hispth test 200(5-50) ca 5(8-11) ca++ .8(1.1-1.3), has sugar in urine, no sugar in blood, kideny tests in normal range, thyroid tests normal?

Mychild 3.5y hispth test 200(5-50) ca 5(8-11) ca++ .8(1.1-1.3), has sugar in urine, no sugar in blood, kideny tests in normal range, thyroid tests normal?

Peads endo consult: Your child needs to be in follow up of well trained pediatric endocrinologist. Without knowing more specific details i could not give you more information. There could be several causes for low calcium in this age group and this needs to be worked up and he should be receiving appropriate calcium supplementation and may also require Calcitriol ( active form of vitamin d) based on the diagnosis. ...Read more

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How can you have sugar in urine but low blood sugar?

How can you have sugar in urine but low blood sugar?

Low threshhold: Ordinarily the kidney does not spill sugar into the urine until the blood level reaches about 180. However, if this kidney threshhold happens to be set at a much lower level, the sugar will begin to spill at a much lower level. This goes by the scientific name of renal glycosuria and has no relation to diabetes. ...Read more

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What does it mean to have sugar in the urine but not the blood?

What does it mean to have sugar in the urine but not the blood?

Timing: Urine is collected over hours in the bladder. If a patient with diabetes has sugar in the urine that means that blood sugar control from over a few to several hours back was likely high. However, it doesn't say anything for the current situation where blood sugar could have normalized in the meantime. If a diagnosis of diabetes hasn't been made, it should be considered. ...Read more

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I have confirmed sugar in urine. Fatigue. Feeling faint with physical activity. Blood sugar is normal. 96 two hours after eating. 88 i'n mornings. Have to wait two weeks to see dr. What should I do i'n meantime?

I have confirmed sugar in urine. Fatigue. Feeling faint with physical activity. Blood sugar is normal. 96 two hours after eating. 88 i'n mornings. Have to wait two weeks to see dr. What should I do i'n meantime?

Ok to wait: Im not sure if you indeed have diabetes based on data you provided. I have seen many times positive urines for glucose yet endocrine workup is negative for diabetes (urine contamination with sugar perhaps ?) or if your kidneys tend to. ...Read more

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If sugar in urine is normal, does it mean normal in blood is too?

If sugar in urine is normal, does it mean normal in blood is too?

No : Urine is collected over hours in the bladder. If a patient with diabetes has no sugar in the urine that means that blood sugar control from over a few to several hours back was likely not very high. However, it doesn't say anything for the current situation. ...Read more

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Could blood sugar be high over 200 in blood but no sugar in urine?

It's possible: Hi. Odd question. It's possible to have a serum glucose over 200 with none in the urine, but the higher above 200 the serum glucose gets, the less likely none shows up in the urine. It has to do with the tubular threshold for glucose, which does show a bell-shaped curve distribution. ...Read more

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What is more dangerous having high blood sugar without apperaring in urine or high blood sugar that appear in urine?

What is more dangerous having high blood sugar without apperaring in urine or high blood sugar that appear in urine?

Higher is worse: Hi. High blood sugar is bad for you. As blood sugar gets higher and higher, it starts to come out in the urine. The higher the blood glucose, the worse it is for you. Therefore, you could say that high blood sugar with sugar in urine is a higher blood sugar than high blood sugar without sugar in the urine, and is therefore worse for you. Basically, the higher the blood sugar the worse it is. ...Read more

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What do you advise if i was wondering what is more dangerous having high blood sugar without apperaring in urine or high blood sugar that appear in urine?

What do you advise if i was wondering what is more dangerous having high blood sugar without apperaring in urine or high blood sugar that appear in urine?

High blood sugar: is dangerous depending upon how high and for how long -- not whether it appears in the urine or not. Blood sugar can easily be 2 or even 3 times normal before appearing in the urine. ...Read more

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3yr old male lethargic, unresponsive. Blood sugar 43, after eating peanut butter and jelly sandwich, apple juice blood sugar up yo 208. Sugar in urine?

3yr old male lethargic, unresponsive. Blood sugar 43, after eating peanut butter and jelly sandwich, apple juice blood sugar up yo 208. Sugar in urine?

Evaluate at hospital: A 3 year old who is truly lethargic and unresponsive should be evaluated at a hospital (such as a children's hospital), arriving there by ambulance. Doctors there will do various tests to see whether or not blood sugar levels are the cause of the symptoms. ...Read more

Dr. Bernard Seif
83 doctors shared insights

Sugar In Urine (Definition)

Glucose in urine also known as 'glycosuria' is mostly seen in diabetes mellitus with elevated blood sugar. Very very rarely ( 1 in 1000 or even less) it is seen in a defect of kidney ...Read more


Dr. Darrin Cunningham
39 doctors shared insights

Home Urine Sugar Test (Definition)

Glucose home testing urine is a diabetes-related agent which is a kind of ...Read more