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The glucose along with a lot of other things are reabsorbed in the convolued tubules of the nephron so that it is not waisted by losing it in the urine.

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Why is it possible to detect between a diabetic and a normal person by testing the urine?

Diabetics may have elevated levels of glucose in their urine due to their body's inability to properly regulate blood sugar levels. Detecting glucose in urine can be a simple and quick way to screen for diabetes. Normal individuals typically do not have glucose in their urine.


How does glucose get into urine?

Glucose is typically reabsorbed by the kidneys and does not appear in urine under normal circumstances. However, if blood glucose levels are too high (hyperglycemia), the kidneys may not be able to reabsorb all the glucose, leading to its presence in the urine (glucosuria). This can be a sign of conditions like diabetes.


Why urine of a healthy person does not contain glucose?

In a healthy person, urine does not contain glucose because the kidneys efficiently reabsorb glucose from the filtrate back into the bloodstream during the process of urine formation. This reabsorption occurs in the proximal convoluted tubule, where glucose is transported alongside sodium ions. Only when blood glucose levels exceed a certain threshold (as seen in conditions like diabetes) does glucose appear in the urine, indicating that the renal threshold for glucose reabsorption has been surpassed.


Is 100 mg glucose in urine high?

The presence of 100 mg of glucose in urine can be considered elevated, as normal urine typically contains little to no glucose. Glucosuria, or glucose in urine, may indicate conditions such as diabetes mellitus, where blood glucose levels are high enough to exceed the kidney's reabsorption capacity. If glucose is detected in urine, it is advisable to consult a healthcare professional for further evaluation.


Does glucose increase or decrease in sitting urine?

Glucose levels in urine typically increase after meals when blood glucose levels rise. Glucose excretion in urine is typically higher when blood glucose levels are elevated, such as in uncontrolled diabetes.


Would you expect to find glucose in urine if the blood supply in the kidney has a high level of glucose?

Yes, if the blood supply to the kidney has a high level of glucose, you might expect to find glucose in the urine, especially if the renal threshold for glucose reabsorption is exceeded. Under normal circumstances, the kidneys reabsorb most of the glucose from the filtrate back into the bloodstream. However, when blood glucose levels are significantly elevated, as in uncontrolled diabetes, the kidneys may not be able to reabsorb all the glucose, leading to its presence in the urine.


What are several constitute you should not find in urine?

Normal urine typically does not contain glucose, protein, ketones, blood, or large amounts of bacteria. The presence of glucose may indicate diabetes, while protein can suggest kidney issues. Blood in urine may signal urinary tract infections or other medical conditions, and ketones can indicate uncontrolled diabetes or starvation. If these substances are detected, further medical evaluation is recommended.


When does glucose concentration in urine become zero?

The normal glucose concentration in urine ranges from 0 to 15 mg/dL. The glucose concentration in urine becomes zero when no glucose has spilled over into the urine.


What is the normal blood reading in urine?

Normal urine typically has a pH range of 4.5 to 8.0, with specific gravity between 1.005 and 1.030. It should be clear and pale yellow in color, with the absence of glucose, protein, blood, and significant amounts of bacteria or ketones. Urine may also contain small amounts of electrolytes and other metabolites, but any significant deviations from these values may indicate underlying health issues.


Is there blood in normal urine?

No Normal urine should not include any traces of blood.


Why shoudn't there be any sugar in the urine leaving the normal kidney?

Because normal kidneys will absorb all the sugar from the urine, unless uncontrolled diabetes puts so much glucose in the blood that the kidneys can no longer absorb it all after producing urine.


What prevents glucose from being lost to the final urine?

Glucose is typically reabsorbed in the kidneys primarily through the sodium-glucose co-transporter (SGLT) in the proximal tubule. This active transport mechanism allows glucose to be reabsorbed back into the bloodstream, preventing its loss in urine. In healthy individuals, the renal threshold for glucose is such that it is fully reabsorbed until blood glucose levels exceed this threshold, leading to glucose appearing in urine. Additionally, hormonal regulation, particularly by insulin, helps maintain normal glucose levels in the blood.