Urine normal proteinuria and occult blood plus enough accurate

Author: Leo
Key words: nephropathy

Introduction
Many of our friends are used to describe the severity of proteinuria and hematuria with the addition and subtraction to describe, for example, my proteinuria 3 + is not very serious? My occult blood 3 +, is not it very serious? In fact, ask, the doctor is difficult to answer. Than the addition and subtraction, nephrologist doctors pay more attention to what is it? This one of the doorway, explain to you!
Urinary protein plus or minus can not accurately reflect the severity of proteinuria?
Urine routine examination, urine protein can be displayed as: - (negative), ± (trace), 1 +, 2 +, 3 +, 4 +.
We usually take it for granted that the more signs, the more severe the degree of proteinuria, but the actual situation is not the case.
This is because the urine of the protein in the addition and subtraction, can only reflect the urine of the urine of the urine of the prescription concentration, and this concentration will be affected by the amount of water, urine volume.
Make a simple example: a person in the drink more, how did not sweat, urine a lot of time, then the proteinuria concentration is low, check out the plus sign will be less. And when he drink less, sweating and more, less urine when the concentration is high, check out the plus sign will be more.
This is why we will see such a mismatch in the clinical phenomenon: Some people check urine routine, although the urine protein 1 +, but the actual than the urine protein 2 + serious, check out the protein than others plus the number of people More!
Therefore, the doctors of renal medicine will require patients to check the 24-hour urine protein quantitative check, the purpose is to see the whole day of urinary protein excretion, this value is the overall response to the severity of urine protein.
24 hours of proteinuria can generally be roughly divided into: mild, moderate, severe proteinuria.
Mild proteinuria: less than 1g / 24 hours
Moderate proteinuria: 1g ~ 3.5g / 24 hours
Severe proteinuria: greater than 3.5g / 24 hours
Let's talk about occult blood!
Occult blood does not see the addition and subtraction, see red blood cells

Occult blood (occult blood) to see the addition and subtraction is not accurate, when you ask the doctor occult blood a few plus time, the kidney physician will "dislike" such inaccurate argument, because many people's occult blood is false positive. For example, if the test before taking iron medications, animal blood, liver, lean meat, a lot of green vegetables, etc., are likely to cause this positive results.
In other words, the occult blood plus a sign does not mean that there is hematuria
What about the doctor?

Look at the number of red blood cells microscopic examination, microscopic examination of red blood cells greater than 3 / HP can be called hematuria.

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