Ok, let's analyse it in biochemistry and phisiological way. First up, urine is the product filtered by your kedney from blood. urine include something you didn't need any more, and your kedney helped you to clear away the blood with waste. Amazingly, kedney cannot filter a lot of things, include(just as you say) protein, most of glucose, axunge, edc. They are nessessary things when we alive.Let's imagine this scence: blood like roads in real world, and the nutrients like cars with our own. They can go anywhere but with our control. Through the road, they from our home to our work places, or the shopping mall. Different car have different destination . The kedney like scrap yard, weed out the used.
Glomerular basement membrane and renal tubular is safeguard to protect the nutrients.
There should be no protein in the urine unless the patient is ill or diabetic.
Yes, protein can be found in the blood of the glomerulus, but normally it should not pass through the filtration barrier into the urine. The glomerulus filters blood, allowing water, electrolytes, and small molecules to pass while retaining larger molecules like proteins in the bloodstream. If proteins are detected in urine, it may indicate a problem with kidney function, such as glomerular damage.
Normal results for a Bence Jones protein test should show no detectable levels of Bence Jones protein in the urine, indicating a healthy kidney function and no abnormal protein excretion. If Bence Jones protein is present in the urine, further investigation may be needed to determine the underlying cause.
If you are talking about three substances that are normally found in blood but not in urine, they are leukocytes, erythrocytes and glucose.
In a normal urine sample, you would typically find substances such as urea, creatinine, uric acid, and electrolytes like sodium and potassium. Additionally, urine may contain small amounts of proteins, hormones, and metabolic waste products. The presence of glucose, ketones, or significant protein levels can indicate underlying health issues. Overall, a healthy urine sample should be clear and pale yellow, with a balanced pH.
Protein isn't normally found in urine, because so many people these days are on Methamphetamine, a very strong drug used by individuals seeking an easy escape. If this drug is abused, the protein from the mitochondria in your cells don't diffuse through the cells into the stream of urine. -Jericho
Protein
Protein nor sugar should not be found in the urine of a healthy person.
Protein should not be found in the urine. Cause it may mean that your kidney is having a problem with its filtering of substances like protein and BUN.
Protein is not generally found in urine. Kidney disease or some other problems such as Diabetes can cause protein to be found in urine.
There should be no protein in the urine unless the patient is ill or diabetic.
Urine should certainly not contain more protein in it than a protein shake. If there are too high levels of protein in the urine, it is known as proteinuria.
Normal results for a Bence Jones protein test should show no detectable levels of Bence Jones protein in the urine, indicating a healthy kidney function and no abnormal protein excretion. If Bence Jones protein is present in the urine, further investigation may be needed to determine the underlying cause.
Protein is likely to appear in urine when the glomerulus is inflamed. Normally, protein is not filtered through the glomerulus; however, inflammation of the glomerulus can lead to increased permeability, allowing protein to pass through and be excreted in the urine.
Uric acid is a by product of protein digestion and can be found in the urine.
Small amounts of protein in a child's urine is normally not cause for concern. However, larger amounts may indicate a kidney problem.
Red blood cells, white blood cells, and platelets are typically present in blood but not normally found in urine.