Laboratory tests help to more accurately demonstrate the presence of parasites in the human body.In most cases, blood and stool samples are required to detect worms.
Each of the modern methods has its disadvantages and advantages.For this reason, doctors recommend doing a complete body exam 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, it is necessary to donate feces 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 toxins secreted by worms.Due to the fact that today about 150 species of parasites live in the human body, 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 allow you to simply suspect that you have worms at home, but an accurate diagnosis can be made after undergoing a diagnosis of the body and testing 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, discomfort in stool (diarrhea, constipation), after eating you may experience heaviness in the stomach, this could be worms in the stomach.
Many people, after discovering signs of parasitic infestation, immediately start taking all kinds of medications and switch to a soft diet.In the vast majority of cases, such measures will be useless and sometimes even cause damage.Before starting treatment, it is necessary to be tested for worms, especially if the following symptoms have occurred:
- discomfort near the anus;
- decreased immunity, frequent colds;
- skin rashes (hives), inflammation (boils);
- constant cough, does not go away even after treatment.
Parasites can negatively affect the functioning of the central nervous system.This is evidenced by signs: excessive nervousness, irritability, fatigue.
When to donate blood
Blood tests for the presence of worms are performed if a person is bothered by headaches, skin problems, itching around the anus, insomnia, digestive disorders (diarrhea, mucus in stool, constipation).In case of parasitic infestation, the patient will notice excessive fragility of the nails and hair loss.
If a child is sick, his symptoms may appear differently.In addition to these signs, there is a powerful secretion of saliva, increased appetite and lack of concentration.
Therefore, a blood test for the presence of worm antigens is an important diagnostic measure that will make it possible to 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 time and money.
Not everyone knows that eggs in feces can only be detected if there are worms.
- filled the intestines;
- they are actively developing;
- multiply.
A blood test for worms in adults will show the infestation at a very early stage.To carry out such an analysis, blood must be taken 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 suspicion of worm infection, when helminths are detected in domestic animals, to carry out epidemiological diagnostic measures in a specific region.It is necessary to check a person for worms if the level of leukocytes in the blood is elevated, which does not indicate other pathological conditions.
Routine examinations are sometimes performed on 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.
It is necessary to determine the presence of antibodies against parasites in fibroids - an inflammatory process in the adrenal glands, bladder and kidneys in women.Men are recommended to have a blood test for prostatitis, adenoma and impotence.
A proven sign that worms may exist in the body is indigestion.In this case, blood tests are carried out on both men and women.
stool analysis
To obtain an accurate result, the patient must follow clear rules.So, 1 week before the analysis, it is necessary to stop taking antiparasitic, antidiarrheal and antibacterial drugs, castor and mineral oil.
When an 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 should not be stored at temperatures above zero.Optimally, it is 4 to 8 degrees for no more than 8 hours.
Testing stool for protozoan parasites is performed as follows:
- take 2 teaspoons of feces;
- transfer to a clean, dry container;
- cover with a lid.
The ideal is to 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 vial is immediately delivered to the laboratory.
It is important to draw the attention of patients to the fact that a single test to identify worms in humans is not always sufficient, especially for pinworm and roundworm eggs.Accordingly, the analysis is repeated at least 3 times with a frequency of 1 to 2 days.
How to send a scraping
Before checking for worms by scraping, you should familiarize yourself with the basic rules of the procedure.First of all, it is prohibited to wash the area around the anus, as this will destroy the remains of parasites.To obtain the most accurate result, it is equally important not to empty the intestines before performing a scraping.
Scrapings to detect worms are taken in a laboratory or clinic, but you can also detect worms at home.It is recommended to use medical gloves before taking a sample.
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 and then carefully soaked:
- glycerin;
- distilled water;
- saline solution.
The procedure is quite simple and does not require much effort.The container is opened, a cotton stick is taken, the buttocks are separated and then the rod is passed around the anus.
The rod with the biological material obtained is placed back in 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 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 peel off the sticker from the glass slide, apply it to the skin around the anus for a couple of seconds, spreading the buttocks before doing this.Whereupon:
- the tape is reattached 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 prohibited to touch the tape and glass with foreign objects.Also, it is not advisable to store the analysis in the refrigerator, as this will greatly affect the result and reliability of the study.
Nowadays it is possible to check for the presence of a parasitic infection by taking a saliva sample.The test is simple and does not require any prior preparation on the part of the patient.They have a disposable container and special reagents that allow the 11 most common types of helminths to be identified.
The method has obvious advantages and disadvantages, for example, the test is based on 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.