It is a misconception that parasite infection is always accompanied by a characteristic clinical picture.Helminth infestation often occurs in the absence of disturbing symptoms.If the treatment is not carried out in time, it can lead to many catastrophic consequences, including: intoxication of the body, diseases of the digestive tract and other internal organs.Parasite detection tests will help determine the presence of foreign organisms and choose the best treatment option.Systematic studies are needed in both adults and children.
Timely examination will help to avoid various complications when the body is affected by parasites.
Indications for research
In the majority of cases, the infection of the body with parasites is accompanied by characteristic symptoms that are quite difficult not to notice.But in the early stages of helminthic invasion, the clinical picture may be practically unexpressed.The presence of protozoa in the human body during this period can only be determined by a parasite test.
Among the main indications, the presence of which literally obliges a person to be examined for parasites, are:
- Itching in the anal area, disturbing mainly at night, due to the fact that the parasites have laid eggs.
- Digestive disorders, expressed in the appearance of constipation, diarrhea, nausea, vomiting, heartburn.
- Fatigue, lethargy, weakness.
- Decreased immunity and resistance of the body, susceptibility to infectious and viral diseases.
- General malaise, pale skin of the face and body, which is due to the lack of useful trace elements in the body, which are absorbed by the parasites.
- Lack of appetite or, on the contrary, an excessive desire for food.
- Weight reduction to critical levels.Usually this happens only if the parasites have long infected the body and the number of individuals is close to critical.
Due to non-observance of the basic rules of personal hygiene, children of the younger age category are most susceptible to parasite infection.But parasites in adults are also possible.It is much easier to get infected with helminths than many people imagine.
In order to avoid complications and worsening of the condition, it is recommended to do tests at least once or twice a year.It is recommended that the survey be conducted during the summer and autumn periods, as this is when the peak frequency most often occurs.
A variety of effective methods
Modern practical medicine offers a wide range of different tests for the presence of various parasites in adults and children, each of which has both clear advantages and disadvantages.In order to get a result that is as close as possible to the reliable one, it is recommended to take several types of tests at the same time.This approach will help to identify parasites even in the early stages of infection.
Among the most effective and commonly used methods are the following:
- stool analysis;
- hemolymph analysis;
- smear or scraping examination.
In some cases, when a helminthic invasion is detected, a number of additional studies are required.Methods such as computed tomography, X-ray examination, ultrasound examination can be used.The need is due to the fact that the activity of parasites often leads to damage to internal organs and the development of cumulative diseases.
Blood test
A blood test for the presence of almost all types of parasites in the body is the most reliable compared to other methods and allows you to detect an infection even in the early stages.Among the most commonly used is immunoenzymatic analysis, which is based on the identification of changes in the composition of hemolymph provoked by parasites.
The characteristic pathological changes in the blood are caused by the release of waste products from parasites and subsequent intoxication of the body.In response to such factors, the body's immune system begins to produce antibodies.It is their quantity that determines the degree of helminth invasion or its absence.
The examination of the composition of the blood allows us to identify not only the presence of helminthic invasion, but also the types of parasites, their approximate amount and the degree of damage to the body.To get the most accurate results, it is recommended to follow certain rules regarding the blood donation procedure: it is better to collect the biomaterial on an empty stomach and only in the morning.
The reliability of the enzyme immunoassay is about 90% and allows you to identify the largest number of known types of parasites.In addition, one of the advantages of examining the hemolymph is the ability to identify protozoan microorganisms that parasitize not in the intestines, but in other organs, for example, the lungs or the liver.
Stool analysis
Most often, traditional stool analysis is used to identify parasitic individuals in the human body.This method is only reliable if at least 60 to 90 days have passed since the infection.In addition, the results of the examination of feces can only reveal the presence in the body of such types of parasites that can parasitize only in the intestines, these are: nematodes, flukes, tapeworms.
As a rule, the analysis of feces for parasites is carried out at least two to three times with an interval of several days.This measure is necessary to obtain more reliable results.Conducting one study often gives false negative results, which is due to the specificity of the life cycle of parasitic individuals.
The analysis procedure includes examination of feces for the presence of eggs, larvae and adults.If there are no parasite eggs in the biomaterial at the time of stool collection, the test will be falsely negative, despite the actual presence of parasite infection.In order to increase the probability of obtaining reliable results, it is recommended to observe a number of basic rules regarding the submission of biomaterial:
- Feces collection should be done in the morning, no later than 11 a.m. local time.
- The optimal mass of the biomaterial is one third of the standard container for analysis, which can be purchased at any pharmacy, but less may be required.
- This test is performed when the patient's body and the skin around the anus itches.This sign indicates that the human body contains helminth eggs in addition to parasites.
- It is desirable that the biomaterial be delivered to the laboratory no later than 30-40 minutes from the moment of its collection.In this case, the results will be as close as possible to the reliable ones.If this is not possible, the biomaterial should be stored in a refrigerator.
The examination of feces for any parasites should be carried out in combination with other types of tests to identify helminths.Only research using two or more methods will give reliable results.It is recommended to repeat the parasite analysis to detect helminth infestation at least once a year.You should also get checked for parasites if eating disorders occur.
Scraping study
Examination of a scraping from the folds of the tissues of the anus is one of the simplest and least reliable.Determining the presence of a parasite in the body in this way is possible only if the time of collecting the material coincides with the period of egg-laying in the parasitic individuals.However, this method is most often used to detect helminth infestation in children of a younger age category.
During the procedure, biological material is collected from the folds of tissue in the subject's anus using a sterile adhesive tape or cotton swab.To obtain the most reliable results, it is recommended that the analysis be performed at least three to four times.
Reliability of research
Obtaining reliable results when conducting any tests for the presence of parasites initially requires compliance with all the rules regarding the collection of the research material.In addition, it is recommended to simultaneously conduct at least two types of research, through which it is possible to identify individuals that parasitize not only in the intestines, but also in other organs and tissues.
Less effective in terms of reliability include stool examination and anal scraping.This is due to the fact that the results of such tests can be falsely negative, both due to the absence of eggs and adults in the feces, and due to the elementary carelessness of the laboratory assistant who conducts the analysis.
How to check the presence of helminths in the body to get the most accurate results?Which parasite tests are the most reliable?In order to promptly identify helminths and start the use of adequate therapy, it is necessary to observe a number of basic rules:
- The procedure for taking any tests must be done in accordance with the prescribed rules.
- It is recommended to repeat each type of examination at least twice with an interval of several days.
- It is recommended to take biomaterial for stool analysis when symptoms such as itching and burning of the anus appear
It should be remembered that an adult should be examined once a year.Children, especially younger age groups, are at risk, so the child should be checked at least once every three months.
The cost of the procedure
The procedure for examining biological materials for the presence of parasites in the body can be performed in almost any medical institution, both public and commercial.But it should be noted that blood tests to determine parasites are not performed in every clinic, while simpler tests are performed almost everywhere.
How much might this type of research cost?The cost of a blood test can vary significantly depending on the region and the type of medical facility.The cost of the stool examination is slightly lower.
Periodic examination of biological materials is an important and necessary measure.Timely identification of parasitic individuals will eliminate intoxication of the body and timely apply therapy.The lack of adequate treatment can lead not only to intoxication, that is, poisoning of the body with waste products from helminths, but also provoke the development of inflammatory diseases of the internal organs.