Often, urinary tract infections are difficult to treat and become chronic. To avoid this, it is necessary to determine in time the type of pathogen and its sensitivity to antibiotics, and for this it is necessary to pass a urine test for bacteriological culture.
What is urine culture
Bacteriological culture is a type of study in which the types of microorganisms in the urine, as well as their concentration, are identified. For this, the material for research is placed in a sterile culture medium and laboratory assistants observe the growth of colonies for a certain time. If there is no growth, the result is negative and the urine is sterile. When a certain increase in concentration is revealed that can cause the development of infection, the result is considered positive.
After that, if necessary, the sensitivity of microorganisms to several antibiotics is determined so that the doctor can prescribe the most effective treatment. This method is also used to determine the effectiveness of antibiotic therapy. Of all the available methods for the study of urine, it is bacteriological culture that gives the most accurate results, but its disadvantages include high requirements for the sampling of material and a rather long time required for the growth of colonies of microorganisms and obtaining research results.
Indications for urine culture
- Infections of the urinary system;
- clarification of the diagnosis with a blurred or atypical picture of the disease;
- pregnancy (the analysis is submitted twice);
- chronic diseases of the urinary tract and kidneys;
- determination of sensitivity to antibiotics and identification of a resistant type of infection.
How to collect urine for bacteriological culture
For bacteriological culture, you will need a sterile glass or plastic jar with a lid. At home, you cannot sterilize the container; you need to contact a bacteriological laboratory. There the jars are sterilized in autoclaves and handed out in special packaging, which must be opened immediately before the procedure for passing the analysis.
Before collecting urine, it is necessary to conduct a thorough toilet of the external genital organs, using hygiene products, with the exception of antiseptics, then dry the perineum well with a clean towel and wash your hands thoroughly with soap and water. You need to collect an average portion of urine.
To collect an analysis, women need to try and avoid contact of urine with the genitals, which is not so easy, given their physiology. For men, this procedure is not so difficult, but it also requires compliance with hygiene rules. The lid of the jar can be touched with your hands only from the outside, so as not to introduce E. coli, any other microorganisms inside and to be sure of the reliability of the results.
After collecting the material, the jar is tightly closed with a lid and immediately taken to the laboratory. The first result will be known in 5-7 days - this is how much time is needed for the development of colonies of microorganisms in a nutrient medium. If the need arises, the doctor may prescribe this test twice to clarify its results.