Laboratory tests help to most accurately prove 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 both its disadvantages and advantages.For this reason, doctors recommend conducting a full body examination to determine if a person has worms.
Analysis of feces for parasites will show the presence of larvae and eggs of helminths.However, the results of the research do not always allow to make an accurate diagnosis.
This fact is explained by the fact that worms have several specific phases of development;they can live and parasitize in different parts of the digestive tract.To get the most accurate result, you should donate feces at least 3 times a week.
If a blood sample test is indicated, they will reveal antibodies that appear as a result of the human body's reaction to the toxins released by worms.Due to the fact that there are about 150 types 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 weakness of a person against the background of increased appetite;
- abdominal pain after eating;
- bouts 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 performing 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 the following: bloating, periodic discomfort in the abdominal cavity, stool disorder (diarrhea, constipation), after eating you may feel heaviness in the stomach, these may be stomach worms.
Many people, after finding signs of parasitic infestation, immediately start taking all kinds of drugs and switch to a sparing diet.In the majority of cases, such measures will be useless, sometimes they will even cause harm.Before starting treatment, you should be examined for worms, especially if the following symptoms appear:
- discomfort near the anus;
- reduced immunity, frequent colds;
- skin rashes (urticaria), inflammation (boils);
- persistent 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
The blood test for the presence of worms is carried out if a person is worried about headaches, skin problems, itching around the anus, insomnia, digestive disorders (diarrhea, mucus in the stool, constipation).With a parasitic infestation, the patient will notice excessive nail brittleness and hair loss.
If the child is sick, his symptoms may appear in a different way.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 antigens to worms 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 providing only stool samples is 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 found only if worms
- fill 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 worm infection is suspected, when helminths are found in domestic animals, to carry out epidemiological diagnostic measures in a specific region.It is necessary to check whether a person has worms if the level of leukocytes in the blood is increased, which does not indicate other pathological conditions.
Routine examinations are sometimes carried out for people whose professional activity is closely related to an increased risk of parasitic infection;as a rule, this group includes:
- workers in meat processing plants;
- farmers;
- veterinarians.
The determination of the presence of antibodies against parasites is necessary 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 there may be worms in the body is indigestion.In this case, the blood test is performed for both men and women.
Stool analysis
In order 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 drugs, castor and mineral oil.
When no examination of the colon (irigoscopy) is scheduled, blood donation is allowed no later than 2 weeks after the stool examination.You should know that the container with the material should not be stored at a temperature above zero.Optimal is 4-8 degrees for no more than 8 hours.
Examination of feces for protozoan parasites 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 get 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 make patients aware that one test to identify worms in humans is not always sufficient, especially for pinworm eggs and roundworms.Accordingly, the analysis is repeated at least 3 times with a frequency of 1-2 days.
How to submit a scrap
Before checking for 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 your bowels before taking a scraping.
Worm scrapings are taken in a laboratory or clinic, but worms can also be found at home.It is recommended to wear medical gloves before sampling.
If there is an assumption about the development of enterobiosis, it is better to use a special tube with a long rod 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 apart and then the swab is passed around the anus.
The rod with the resulting biological material is placed back into the container, taking care 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 a special self-adhesive tape.
Doctors insist that the analysis technology must be carried out accurately.So, first you need to peel off the sticker from the slide, apply it to the skin around the anus for a few seconds, spreading the buttocks before doing so.then:
- the tape is reattached to the slide;
- the material is taken to the medical facility where the examination will be conducted.
There is another equally important rule: when collecting biological material, it is forbidden to touch the tape and glass with foreign objects.You should also not store the analysis in the refrigerator, as this will significantly 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 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 advantages and obvious 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.