Laboratory tests make it possible to demonstrate as precisely as possible the presence of parasites in the human body.Most often, blood and stool samples are needed to test for worms.
Each of the modern methods has both disadvantages and advantages.For this reason, doctors recommend carrying out a complete body examination to find out if a person has worms.
A stool test for parasites will show the presence of helminth larvae and eggs.However, test results do not always allow for an accurate diagnosis.
This fact is explained by the fact that worms have several specific development phases;they can live and parasitize in various parts of the digestive tract.To obtain the most accurate result, you need to pass stools at least 3 times a week.
If a study of blood samples is indicated, it will reveal antibodies that appear as a result of the human body's reaction to toxins secreted by worms.Given that there are approximately 150 species of parasites living in the human body today, no research method can be 100% accurate.
Are there worms or not?
Everyone knows that the main indicators on the basis of which the presence of parasites is suspected:
- excessive thinness of a person against the background of increased appetite;
- abdominal pain after eating;
- attacks of morning sickness.
Such symptoms will simply allow you to suspect that you have worms at home, but an accurate diagnosis can be made after carrying out a diagnosis of the body and carrying out tests for parasites.These signs may indicate pathologies of the digestive tract, metabolic disorders and other diseases.
If you have worms, the symptoms will be as follows: bloating, periodic discomfort in the abdominal cavity, bowel movements (diarrhea, constipation), after eating you may feel heaviness in the stomach, it could be worms in the stomach.
Many people, upon discovering signs of parasitic infestation, immediately begin taking all kinds of medications and switch to a gentle diet.In the vast majority of cases, such measures will be useless, and sometimes even harmful.Before starting treatment, you should undergo a test for worms, especially if the following symptoms have appeared:
- discomfort near the anus;
- decreased immunity, frequent colds;
- skin rashes (hives), inflammation (boils);
- constant cough, it does not disappear even after treatment.
Parasites can interfere with the functioning of the central nervous system.This results in signs: excessive nervousness, irritability, fatigue.
When to donate blood
Blood tests for the presence of worms are carried out if a person is bothered by headaches, skin problems, itching around the anus, insomnia, digestive disorders (diarrhea, mucus in stools, constipation).In case of parasitic infestation, the patient will notice excessive fragility of the nails and hair loss.
If a child is sick, their symptoms may appear differently.Added to these signs are a powerful secretion of saliva, an increase in appetite and a lack of concentration.
Therefore, a blood test for the presence of worm antigens is an important diagnostic measure that will detect parasites in the body and determine the disease as early as possible.There is an opinion that to make a diagnosis it is enough to provide only stool samples, but this is not the case.Blood tests are rarely done because patients do not want to waste their time and money.
Not everyone knows that eggs in the stool can only be detected if worms
- filled the intestines;
- are actively growing;
- multiply.
A blood test to detect worms in adults will show an infestation at a very early stage.To carry out such an analysis, you need to take blood from the cubital vein, which will allow you to accurately and quickly determine the type of parasites and choose ways to get rid of them.
Blood sampling is also necessary in case of suspicion of infection with worms, when helminths are detected in pets, to carry out epidemiological diagnostic measures in a specific region.It is necessary to check a person for worms if the level of blood leukocytes is high, which does not indicate other pathological conditions.
Sometimes routine examinations are carried out for people whose professional activities are closely related to an increased risk of parasitic infection;as a rule, this group includes:
- meat processing plant workers;
- farmers;
- veterinarians.
Determination of the presence of antibodies to parasites is necessary for fibroids, an inflammatory process of the adrenal glands, bladder and kidneys in women.Men are advised to take a blood test to detect prostatitis, adenoma and impotence.
Indigestion is a proven sign of the presence of worms in the body.In this case, blood tests are carried out for both men and women.
Stool analysis
To obtain an accurate result, the patient must follow clear rules.So, 1 week before the analysis, you should stop taking antiparasitic, antidiarrheal and antibacterial drugs, castor and mineral oil.
When an examination of the large intestine is not scheduled (irrigoscopy procedure), blood donation is permitted no later than 2 weeks after the stool analysis.It should be noted that the container containing the material should not be stored at temperatures above zero.Ideally, it is 4 to 8 degrees for 8 hours maximum.
Testing for protozoan parasites in stools is carried out as follows:
- take 2 teaspoons of feces;
- transfer to a clean, dry container;
- cover with a lid.
Ideally, you should take material from different parts of the stool.To obtain an accurate answer, feces are collected no later than half an hour after defecation and the jar is immediately delivered to the laboratory.
It is important to draw patients' attention to the fact that a single test to identify worms in humans is not always sufficient, particularly for pinworm and roundworm eggs.Accordingly, the analysis is repeated at least 3 times with a frequency of 1-2 days.
How to submit a scraping
Before checking for worms by scraping, you should familiarize yourself with the basic rules of the procedure.First of all, it is forbidden to wash the area around the anus, as this will destroy traces of parasites.To get the most accurate result possible, it is also important not to empty your intestines before scraping.
Samples for worms are taken in the laboratory or clinic, but worms can also be detected at home.It is recommended to wear medical gloves before taking a sample.
If there is a hypothesis about the development of enterobiosis, it is better to use a special test tube with a long stick inside.The end of this stick must be wrapped in cotton, then carefully soaked:
- glycerin;
- distilled water;
- saline solution.
The procedure is quite simple and does not require much effort.The container is opened, a stick with cotton wool is taken, the buttocks are spread apart, then the stick is passed around the anus.
The rod containing the biological material obtained is placed back into the container, trying not to touch its walls, and the container is closed.
The result of the study will be reliable if the sample of biological material is delivered to the laboratory as soon as possible.
You can determine the presence of pests in your home in another way, for example, using a glass slide with special adhesive tape.
Doctors insist that the analysis technology must be carried out precisely.So, you need to peel off the sticker from the glass slide first, apply it to the skin around the anus for a few seconds, spreading the buttocks before doing so.After which:
- the ribbon is again attached to the glass slide;
- the material is taken to the medical institution where the research will be carried out.
There is another equally important rule: when collecting biological material, it is forbidden to touch tape and glass with foreign objects.In addition, you should not store the analysis in the refrigerator, as this will greatly affect the result and reliability of the study.
Nowadays, it is possible to test for the presence of a parasitic infection by taking a saliva sample.The test is simple and requires no prior preparation on the part of the patient.They use a disposable container and special reagents that allow you to identify the 11 most common types of helminths.
The method has obvious advantages and disadvantages, for example, the test is supported by the ability to detect the presence of worms in all tissues of the body, and the negative side of the procedure is the rather high cost of the study.