Laboratory studies raise a lot of questions in patients: "when to take this or that analysis," "how to prepare for it," and so on. This article will give an answer to all the question of how much urine is needed for urine analysis. You will find out what are the features of collecting material for a particular study. You will also find out what is the minimum amount of urine for a general analysis.
Urinalysis
Before you know how much urine is needed for urine analysis, it is worth saying that this study is one of the most common. Most doctors prescribe this diagnosis at the first appointment. The essence of the study may be different.
The most popular is a general urine test. For a more detailed diagnosis, a study is being conducted on Nechiporenko, Zimnitsky, Sulkovich and so on.
How much urine do you need for analysis?
Depending on the type of diagnosis you are assigned, the method of collection and the amount of test material may be different. So, the volume of urine for urinalysis common in an adult and a child can vary significantly. What can we say about newborn babies.
Most often, a person does not think about how much urine is needed for urine analysis, and fills the jar to the top. However, this is not always required. Let’s try to figure out how much urine is needed to analyze different types of urine.
General research
This study involves collecting the morning portion of the excreted fluid. In this case, the material must be completely placed in the jar. Normally, in the morning, from 100 to 200 milliliters of fluid is released in a person in the morning.
For diagnostics, 80-130 milliliters will be enough. If your container is much less than the allocated volume, then it is worth collecting urine in a separate container and then pour the necessary part.
Research on Nechiporenko
How much urine do you need? For urine analysis according to Nechiporenko, the laboratory assistant separates one milliliter of fluid from the entire volume. It is this amount that is required to determine the level of white blood cells, red blood cells and cylinders. However, this does not mean that you can bring a few drops of urine to the laboratory.
To study the material according to Nechiporenko, you need to pass from 50 to 70 milliliters of liquid. In this case, a portion of urine should be medium. This means that the first stream of liquid must be released into the toilet. After that, the material is collected in a jar. You need to finish urinating also in the toilet.
Research on Zimnitsky
How much urine does it take to conduct this study? Zimnitsky’s analysis involves the diagnosis of fluid that is released during the day. In this case, the main condition is the collection of material every three hours. All servings are collected in sterile containers. A healthy person produces one to two liters of urine during the day. Therefore, in one container you should fit about 150-300 milliliters of liquid.
For the diagnosis, the laboratory assistant from each jar secretes about 10 milliliters of urine. It is in this volume that research is being carried out. From this we can conclude that for diagnosis only 80-100 milliliters of collected material are needed.
Test for glucose, protein, and creatinine
How much urine do you need for this type of diagnosis? A person should collect from one to two liters of material. In this case, it is not necessary to deliver the entire volume to the laboratory. Diagnostics involves the collection of all emitted fluid, which is placed in one large container. After that, you need to separate 100 milliliters from the resulting volume and deliver them to the laboratory.
During the study, doctors do not fully use the dose received. They take about a third of the volume and conduct diagnostics. It is worth noting that for each analysis you need to take the indicated dose. So, if you are assigned to examine urine for glucose, then 100 milliliters of the daily rate will be given. Each additional study involves adding the indicated portion.
Bacteriological research
For this diagnostic procedure, you will need an average portion of morning urine. You need to collect it in an amount of from 50 to 70 milliliters. It is this dose that laboratory technicians examine for sensitivity to antibiotics.
To find out the condition of the flora, the doctor will need only 10 milliliters of material. In this volume microorganisms are populated, which subsequently give or do not give growth.
The amount of urine for diagnosis
Unlike adult norms, a portion of the baby's excreted fluid can be significantly smaller. So, if a person needs to collect 100 milliliters for a general analysis, then 20-50 will be enough for the baby. Remember: the laboratory assistant cannot refuse to analyze you because the material is insufficient.
If the study needs to be carried out in a newborn, then the portion may be even smaller. Babies in their first month of life can urinate just 10 milliliters at a time. This amount of fluid will be enough for diagnosis. Only in some cases can a doctor prescribe the collection of two different servings of material in one container.
Is it possible to hand over a larger volume?
In most cases, patients have no idea about these standards. They donate from 100 to 150 milliliters at a time. However, no one says that there is too much material for research. The laboratory assistant will separate the amount he needs and conduct a study.
Summarizing
So, now you know the basic serving rates for urinalysis. Remember that in some cases the material is not enough. For this indicator, an incorrect diagnosis can be made. That is why when receiving a referral it is worth checking with a specialist how much urine should be collected for research. You can pass more of the specified amount, less - it is extremely undesirable.
Good health and good diagnostic results!