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How to correctly calculate the daily urine output during pregnancy and what is its rate?

The work of the urinary system during the carrying of the baby should be uninterrupted. This is necessary so that all the toxic metabolic products of the mother and baby are freely released outside. In some cases, it is possible to evaluate the work of the kidneys and urinary tract only by calculating the daily urine output.

What does this mean?

For expectant mothers, doctors prescribe many different laboratory tests. One of the most common of these is urinalysis. With the help of this simple study, doctors get quite a lot of information they need about both the health of the pregnant woman and her baby.

However, routine urine sediment analysis is not sufficient in all cases. If the expectant mother has any kidney or urinary tract diseases, then she will need to prescribe more accurate auxiliary tests. One of these tests is the determination of daily diaresis.

Many women are intimidated by the name of this test. The word "counting" is often perceived as something complicated and confusing. You should not worry and worry about this. This test is extremely simple. Any woman can do it.

Doctors call diuresis urine separation... During the test, its release per day is estimated. Daily urine output can be measured anywhere. Experts can assign the definition of this indicator to future mothers and at home.

The kidneys are responsible for the formation of urine in our body. Daily diuresis is, in fact, reflection of the filtration and tubular functions of these organs... Expressed deviations from the norm necessarily become the reasons for a more expanded set of various diagnostic measures.

Glomerular filtration Is a process that occurs in the kidneys, during which the primary synthesis (formation) of urine occurs. Its importance is great. During it, the body is released and cleansed of various toxins and decay products. Many of them, with prolonged accumulation, can lead to the formation of rather dangerous pathologies for both the expectant mother and her baby.

The next stage of urination is tubular reabsorption. During this process, residual essential nutrients are recycled back into the bloodstream. They are also necessary for the baby - for its active full development in the mother's tummy.

The formation of urine is largely influenced by the drinking regimen. If the expectant mother consumes a lot of fluids during the day, this also contributes to a large release of it.

Exceptions arise only if a woman has any diseases that make it impossible to separate excess fluid from the body. In this case, all excess water accumulates inside the body. Ultimately, this contributes to the appearance of various edema on the trunk.

With pathology of the kidneys and urinary tract, puffiness most often appears on the face. Usually, edema is located in such a situation under the lower eyelids. They are found, as a rule, in the morning after waking up and at the first visit to the bathroom.

Daily urine output is a very important indicator. Quite often, this clinical indicator is determined in expectant mothers who are hospitalized in a hospital for various pathologies of pregnancy. This simple test provides doctors with enough information they need to make a correct diagnosis.

What is the control for?

It is very important to measure daily urine output during pregnancy. It helps doctors quicker to establish the cause of the arisen functional disorders, and also simplifies the diagnosis. In this case, they can draw up a treatment plan much faster, which will normalize the general condition of the pregnant woman.

Reduced value

In the summer, the flow of urine may be slightly reduced. This is a completely physiological reaction that occurs in all people. The development of such a symptom in this situation leads intensive secretion of fluid through the skin during perspiration.

Also, the daily urine output may be lower in women who are actively involved in sports or who often visit the fitness center.

A variety of pathologies can lead to a decrease in this indicator. Many of these are not even related to the kidneys or urinary tract. Severe vomiting or diarrhea leads to a decrease in urine output (oliguria).

Typically, these symptoms develop in women during various food toxicoinfections. These violations are also accompanied by an increase in body temperature and the appearance of abdominal pain. In such a situation, the daily urine output can decrease to 0.4-0.6 liters or even less.

In this case, a sick woman must be hospitalized in a hospital for the necessary complex of intensive treatment. With the introduction of various drugs that are administered intravenously, it is possible to improve the well-being of the expectant mother and normalize the indicators of daily urine output.

Increased value

If the daily urine output is more than three liters, doctors say polyuria is present. Significant fluid intake during the day can lead to the development of this situation.

The reasons for this condition may both physiological and pathological. In hot weather, with the abuse of salty and sweet food, thirst increases. This promotes heavy fluid intake.

If the kidneys cope with the increased load on them, then this only leads to an increase in urine output. In this situation, it is weakly concentrated. The liquid component in such an excreted fluid significantly predominates over the urinary sediment.

The development of polyuria often leads to diabetes. During pregnancy, this pathology may appear for the first time. In this situation, doctors talk about the presence of gestational diabetes in a pregnant woman.

This disease manifests itself as strong thirst and increased urine output. Ultimately, this contributes to a change in the indicators of daily urine output.

The performance of this clinical sign can also be influenced by many drugs. The most common ones are - diuretic (diuretic) drugs. They are usually prescribed for long-term admission. Regular use of these funds leads to more frequent trips to the toilet, which contributes to a change in the indicators of daily urine output in pregnant women.

Norms

In a healthy person, normal urine output, as a rule, is up to 1.5 to 2 liters of urine per day. Changes in this indicator do not yet indicate any pathology. To make a diagnosis, many different indicators must be considered, even the season.

Doctors believe that a healthy body of a future mother should release about 65-80% of the liquid she drank. With such a ratio, you should not worry about the work of the kidneys and urinary tract. If much less fluid is released, then this will lead to the appearance of internal or external edema.

If external edema is easy to determine, then excess fluid accumulation inside the body is determined differently. To do this, doctors measure the body weight of a pregnant woman. If the "increments" during regular visits to the obstetrician-gynecologist significantly exceed the norm, then doctors consider this a manifestation of latent edema.

Often, the first pronounced disturbances in daily diuresis in pregnant women begin to appear at 22-24 weeks of gestation. During this period, the uterus with the baby developing in it exerts strong pressure on the organs that are nearby. Such a "rough" effect on the kidneys leads to disruptions in their functioning.

If the indicators of daily urine output change significantly at an earlier period of bearing a baby, then this, as a rule, is a manifestation of various pathologies. In this case, mandatory immediate intervention of specialists is required.

What is the correct way to collect urine?

There is no significant difference in which container the biomaterial will be collected. Any container or jar is suitable for this. The main thing is that divisions or other measured marks are present on it.

After each act of urination the volume of fluid released should be recorded. All obtained values ​​are recorded in a notebook or notebook. After a day, the obtained urine indicators are simply summed up among themselves.

Quite often it happens that at the same time as determining the daily diuresis, the doctor may recommend that the expectant mother take urine analysis according to Nechiporenko... In this case, it is better to take biomaterial for this analysis in the morning. Before collection, in this case, it is necessary to wash well and collect only the middle portion of urine.

Both studies in such a situation will provide the doctor with a much wider range of information he needs.

Sample calculation

To calculate the daily urine output at home, you can use a special table. The amount of consumed and allocated fluid is entered into it.

Units of measurement can be any. Usually, the amount of fluid for calculating daily urine output is measured in milliliters.

An example of such a table is presented below:

When filling out information about the liquid you drink, it is very important to remember that the data obtained should be recorded about absolutely all products that contain water. An abundance of natural moisture is found in vegetables, fruits and berries.

Special tables are used to calculate the liquid contained in the fruit. They will allow the future to correctly calculate how much water they consumed per day.

It is better to record the indicators of the drunk liquid after each drink. It often happens that the woman conducting this research simply forgets to enter the information she received into the table. In this case, the result will be distorted. The table should be filled out very carefully and responsibly.

The balance between how much is drunk and how much is excreted is an important indicator of kidney function. If this ratio is significantly lower than 65-70%, then in this case, you should definitely consult your doctor.

You should also see a doctor if the violations of daily urine output are insignificant, but the expectant mother has unfavorable symptoms. These include: intense thirst, dry mouth, increased urge to urinate at night (nocturia), itchy skin, dry skin, excessive fatigue, and lower back discomfort. These clinical signs may also indicate the development of various pathologies.

For information on how to take a urine test during pregnancy, see the next video.

Watch the video: Average Hourly Urine Output (July 2024).