Laboratory tests help to more accurately demonstrate the presence of parasites in the human body.Most often, blood and stool samples are required to test for worms.
Each of the modern methods has its advantages and disadvantages.For this reason, doctors recommend conducting a comprehensive examination of the body 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 an accurate diagnosis.
This fact is explained by the fact that worms have several specific stages of development;they can live and parasitize in different parts of the digestive system.To get the most accurate result, you should donate stool at least 3 times a week.
If a study of blood samples is indicated, they will reveal antibodies that appear as a result of the human body's reaction to the toxins secreted by the worms.Due to the fact that about 150 types of parasites live 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 weakness of a person against the background of increased appetite;
- abdominal pain after eating;
- attacks of vomiting in the morning.
Such symptoms will allow you to simply suspect that you have worms at home, but an accurate diagnosis can be made after undergoing body diagnostics and taking tests for parasites.These signs can 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, stool disturbances (diarrhea, constipation), after eating you may have a heaviness in the stomach, this may be stomach worms.
Many people, after discovering the signs of parasitic infection, immediately start taking all kinds of medications and switch to a bland diet.In the vast majority of cases, such measures will be useless, sometimes even causing harm.Before starting treatment, you should be tested for worms, especially if the following symptoms have appeared:
- discomfort near the anus;
- decreased immunity, frequent colds;
- rash on the skin (urticaria), inflammation (wave);
- persistent cough, does not go away even after treatment.
Parasites can negatively affect the functioning of the central nervous system.This is evidenced by the signs: excessive irritability, nervousness, fatigue.
When to donate blood
Blood analysis for the presence of worms is carried out if a person is bothered by headaches, skin problems, itching around the anus, insomnia, digestive disorders (diarrhea, mucus in the stool, constipation).With a parasitic infection, the patient will notice excessive brittleness of the nails and hair loss.
If a child is sick, his symptoms may appear differently.In addition to these signs, there is a strong secretion of saliva, an increase in appetite and lack of concentration.
Therefore, a blood test for the presence of antigens to worms is an important diagnostic measure that will detect parasites in the body and determine the disease as soon as possible.There is an opinion that only stool samples are enough to make a diagnosis, 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 feces can be detected only if worms
- filled the bowels;
- are actively developing;
- multiply.
A blood test for worms in adults will show infection at a very early stage.To perform 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 if there is a suspicion of worm infection, when helminths are detected in domestic animals, for conducting epidemiological diagnostic measures in a certain region.It is necessary to check whether a person has worms if the level of leukocytes in the blood is elevated, which does not indicate other pathological conditions.
Sometimes routine examinations are performed 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 required for fibroids, an inflammatory process in the adrenal glands, bladder and kidneys in women.Men are advised to take a blood test for prostatitis, adenoma and impotence.
A proven sign that worms may exist in the body is indigestion.In this case, blood testing is performed for both men and women.
Stool analysis
To get an accurate result, the patient must follow clear rules.So, 1 week before the analysis, you should stop taking antiparasitic, antidiarrheal and antibacterial medications, ricin and mineral oil.
When the examination of the large intestine (irrigoscopy procedure) is not scheduled, blood donation is allowed no later than 2 weeks after the stool test.You should know that the container with the material must not be stored at temperatures above zero.Optimally, it is 4-8 degrees for no more than 8 hours.
Stool testing for protozoan parasites is performed as follows:
- take 2 teaspoons of feces;
- transfer to a clean and dry container;
- cover with a lid.
Ideally, you should get materials from different parts of the bench.To get an accurate answer, feces are collected no later than half an hour after defecation, and the jar is immediately sent to the laboratory.
It is important to draw the attention of patients that a single test to identify worms in humans is not always sufficient, especially for eggs of worms and roundworms.Therefore, the analysis is repeated at least 3 times with a frequency of 1-2 days.
How to submit a scraping
Before checking the presence of worms using 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 the traces of parasites.To get the most accurate result, it is equally important not to empty the bowels before doing an itch.
Scrapings for worms are taken in a laboratory or clinic, but worms can also be detected at home.It is recommended to wear medical gloves before sampling.
If there is an assumption about the development of enterobiasis, it is better to use a special test tube with a long stick inside.The end of this stick will need to be wrapped with cotton wool, and then carefully soaked:
- glycerin;
- distilled water;
- physiological solution.
The procedure is quite simple and does not require much effort.The vessel is opened, a cotton swab is taken, the buttocks are spread, and then the swab is passed around the anus.
The rod with the obtained biological material 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 submitted to the laboratory as soon as possible.
You can determine the presence of parasites in yourself 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, first you need to remove the adhesive from the glass slide, apply it to the skin around the anus for a few seconds, spreading the buttocks before doing so.After which:
- the tape is glued back to the glass slide;
- the material is sent to the medical institution where the research will be carried out.
There is another equally important rule: during the collection of biological material, it is forbidden to touch the tape and glass with foreign objects.Also, 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 giving a saliva sample.The test is simple and does not require any prior preparation from the patient.They take 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.