Medical expert of the article
New publications
Norm of protein in the urine
Last reviewed: 23.04.2024
All iLive content is medically reviewed or fact checked to ensure as much factual accuracy as possible.
We have strict sourcing guidelines and only link to reputable media sites, academic research institutions and, whenever possible, medically peer reviewed studies. Note that the numbers in parentheses ([1], [2], etc.) are clickable links to these studies.
If you feel that any of our content is inaccurate, out-of-date, or otherwise questionable, please select it and press Ctrl + Enter.
[Who to contact?
The norm of protein in the urine during pregnancy
A certain amount of protein can be found in the urine of all. It is considered that the norm of protein in the urine during pregnancy is 0.033 g / l. Proteinuria is not only a sign of pathology, it can have a physiological character. Protein in the urine can naturally be found in larger quantities when you consume the day before the analysis of a large number of proteins: dairy products, cottage cheese, meat. Also, proteinuria occurs with severe stress, moral exhaustion.
Also, pregnant women often have cystitis and urethritis, pyelonephritis.
Another formidable disease of pregnant women, which occurs with increasing levels of protein and swelling - is gestosis. Launched cases of gestosis lead to swelling, epigastric pain, headaches, seizures, dangerous for pregnancy.
It is important to control the emptying of the bladder. The rules of putting urine are very simple:
- You can not eat on the eve of salty, sour and a lot of meat.
- Before the surrender, you must take a shower and wash yourself.
- When transporting the assay to the laboratory, do not shake the vessel.
- You need to deliver the analysis to the clinic within an hour.
- Collect urine as soon as you wake up.
The color, reaction and specific gravity of urine are also determined.
Pregnant women give an urine test every 2 months. It is very important to take urine tests in proven modern laboratories.
If the doctor has any doubts, he can also prescribe a urinalysis for Nechiporenko or a repeated general urinalysis - whether it is not enough, maybe the dishes were not sterile. In the bank of the product may remain protein.
Of course, toxicosis and constant examinations are not very pleasant companions of pregnancy, but there are much more positive moments. As for urine, it is easy to identify many health problems.
The protein in the urine of a child
The protein in the urine of children in normal should not be detected. Although sometimes the content of protein in the urine is up to 0.036 g / l. A pediatrician can prescribe a child a urine sample for protein to monitor kidney disease, with diabetes, urinary tract infection (cystitis, urethritis). An easy degree of proteinuria does not appear clinically. However, if the protein in the urine of a child is prolonged for a long time in the range of 300 mg-1 g / l, fatigue, nephropathy, dizziness, loss of appetite, nausea, redness of the urine, chills and fever.
The increase in the protein content in the urine is associated with systemic connective tissue diseases, diabetes mellitus or with kidney inflammation, with mechanical injuries of the kidneys, hypothermia, burns.
The norm of protein in daily urine
The norm of protein in daily urine at rest is about 50-100 mg / day. To determine the protein in the urine, first conduct a general urine test.
When detecting a protein in a general urinalysis, it is also necessary to examine 24-hour urine. Small proteinuria - protein content less than 0.5 g / day, moderate - 0.5 g-1 g / day. If more than 1 g of protein per day is excreted in the urine, this indicates a pronounced proteinuria. The increase in protein in daily urine is the first sign of diabetic nephropathy and inflammation of the kidneys.
The permissible norm of protein in the urine
The permissible limit of "protein in the urine" is the absence or traces of 0.025-0.1 g / day. The norm of protein concentration in the morning urine is usually considered to be <0.033 g / l.
Isolate physiological and pathological proteinuria (a condition in which the norm of protein in the urine is exceeded). The physiological proteinuria is caused by emotional and cold loads and fever. A characteristic feature of pathological proteinuria is its resistance.
Is the protein in the urine higher than normal?
High blood pressure, diabetes, pyelonephritis, oncological diseases, gestosis of pregnant women, cystitis, tuberculosis of the kidneys, malaria, pericarditis, arthritis, myeloma, trauma, long standing in the vertical position are the main causes of increased protein in the urine.
150 ml of urine or more is required for the study. Urinalysis is a simple study. But it is very valuable for the doctor. In modern laboratories the result is ready in 40 minutes.
The norm of protein in the urine is an important laboratory indicator for the selection of adequate treatment.