How To Take A Stool Test Correctly And How Much Is Needed For Analysis

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How To Take A Stool Test Correctly And How Much Is Needed For Analysis
How To Take A Stool Test Correctly And How Much Is Needed For Analysis

Video: How To Take A Stool Test Correctly And How Much Is Needed For Analysis

Отличия серверных жестких дисков от десктопных
Video: How to Collect a Feces (Stool) Sample 2023, February
  • 1 Analysis of feces for worms
  • 2 Preparing for the test
  • 3 Rules for passing a feces analysis
  • 4 What is a coprogram?
  • 5 Research results

One of the simplest diagnostic methods to identify parasites in the human body is the analysis of feces. Moreover, both adult patients and small ones can donate feces for research. For information on the rules for the delivery of feces to the egg-leaf and how not to provoke the removal of a false-positive or false-negative result, read the material below.

Stool analysis for worms

analysis of feces for worms
analysis of feces for worms

Before we figure out how to take a feces analysis, it is worth understanding that this type of diagnosis is shown to everyone, but with different frequencies depending on the purpose of the study. In general, the delivery of feces for tests is carried out rather with a preventive measure. There are such goals for the delivery of biomaterial in the form of feces:

  • Prevention. Fecal biomass is surrendered in order to timely detect parasites, even if there are no obvious symptoms of invasion. In this case, the collection of feces for the eggs of worms can be done even without a referral from a family doctor at will. The frequency of such diagnostics is at least once a year.
  • Barrier measure. In this case, the feces are sent for research to prevent the spread of helminthic infestation in the family, in the circle of the children's / school team, in the circle of the work collective, etc. As for the adult population, all catering workers, trade, food industry, etc. The survey is carried out every six months. The laboratory assistant should inform about how to pass the feces test correctly.
  • Examination in the direction of a doctor. In this case, the attending physician relies on the clinical picture of the patient with a suspicion of helminthic invasion. To confirm the diagnosis or refute it, the specialist directs the fecal mass for analysis. The specialist must tell the patient here how to correctly take stool tests and get an informative result depending on the suspected pathology.

Preparation for the test

preparation for the test
preparation for the test

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If the reader is interested in how to donate feces and how much feces are needed for an accurate analysis, then first of all it is necessary to understand that in order to obtain reliable results, you must first prepare for the collection of biomaterial. In general, the collection rules are very simple here:

  • Seven days before the test, you must completely stop taking any medications. Including antibacterial, enzymatic, antiparasitic, as well as castor or mineral oil.
  • Any examinations of the large intestine, such as irrigoscopy, colonoscopy, X-ray, etc., it is advisable to pass 14 days before taking the material, or postpone the procedure for the period after the donation of feces for the eggs of the worms (how to collect the material correctly is described below).
  • It may be necessary to follow a certain diet with a minimum carbohydrate content and dosage of fats and proteins. In particular, the Pevzner or Schmidt diet is used for these purposes.

Rules for passing a feces analysis

sterile container
sterile container

For those who are interested in how much feces need to be collected for analysis and what are the rules for collecting biomaterials, the information below will be of interest. So, the correct collection of feces will be considered subject to the following rules:

  • Before you understand how much feces you need for analysis, you need to purchase a special sterile container for sampling biomass. You can buy it at the pharmacy. Conveniently, such a container for stool analysis has a special spatula for collecting feces and an adhesive sticker on which patient data can be applied. It is not recommended to use glass jars and matchboxes for collecting faeces.
  • Biomass is collected after a random bowel movement in the morning or evening. At the same time, it is forbidden to use laxatives to provoke stool. It is also forbidden to collect biomaterial after enema or the use of rectal suppositories. In this case, the result may be distorted.
  • It is better to empty it into a clean and dry container without impurities in it of detergents, disinfectants and cleaning agents.
  • It is advisable to urinate before bowel movements, so as not to mix feces with urine. It is also undesirable for genital secretions to enter the biomass.
  • It is undesirable to wash before emptying, especially if feces are collected in the morning.
  • If the feces are collected from the evening before, then the analysis can be stored in a sterile container in the refrigerator for no more than 8 hours. However, the ideal option is the delivery of the biomaterial immediately after a bowel movement (1-2 hours).
  • In response to the question, how much feces are needed for analyzes in an adult or a child, you should know that it is enough to collect 2/3 of the sterile container. If a simple glass jar is used, then 1-2 teaspoons of feces can be collected.
  • You need to collect biomass from three different sides of the formed sausage. From the front (what came out first), from the back (in the last feces) and from the sides of the mass. This will allow you to get the most reliable result.
  • The patient's full name is written on a special sticker and the date and time of the biomaterial sampling are indicated. The sticker is glued to the container and the mass is sent for analysis.

What is coprogram?

scrutiny method
scrutiny method

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After we figured out how to correctly donate feces for research, it is advisable to understand what a coprogram is and how it differs from the usual analysis of biomass in the form of feces. Here, we note that the coprogram is not just an analysis to identify the eggs of the parasite, but also a method for a thorough examination of the patient's feces to assess the functioning of the digestive tract. So, with a coprogram, you can correctly evaluate the following parameters of the digestive system:

  • Evacuation functions of the intestine and stomach;
  • Enzymatic activity or inactivity of the digestive tract (the ability to thoroughly digest food in various areas of the digestive tract - stomach, pancreas and intestines);
  • The state of the microflora of the small intestine;
  • The presence of any inflammatory processes in different parts of the digestive tract;
  • The presence of hidden gastrointestinal bleeding;
  • The presence of parasites and their eggs in the feces.

Research results

During the analysis, the laboratory assistant fills out a form in which he puts a mark "-" or "+". In the first case, the result is negative, that is, the parasite was not found. In the second case, the result is positive. That is, the eggs of worms or live individuals are found in the biomass. Below, the specialist indicates one of the types of identified helminths. It can be:

  • Ascaris;
  • Pinworms;
  • Hepatic or feline fluke;
  • Vlasoglav;
  • Wide ribbon;
  • Pork or bovine tapeworm;
  • Schistosoma;
  • Amoeba or lamblia (protozoa).

It should be understood that with a single analysis, the result may be negative only because the parasite has not entered the active phase of reproduction. That is, it is not yet laying eggs. Therefore, to confirm or refute the result, it is advisable to donate feces for eggs of the parasite three times with a break of 10-15 days.


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