Laboratory tests help to demonstrate the presence of parasites in the human body in the most accurate way.Blood and stool samples are often required to test for worms.
Each of the modern methods has both disadvantages and advantages.For this reason, doctors recommend a thorough examination of the body to find out whether there are worms in a person.
A stool test for parasites will show the presence of helminth larvae and eggs.However, test results do not always allow making an accurate diagnosis.
This fact is explained by the presence of several specific developmental stages of worms;they can live and parasitize in different parts of the digestive system.To get the most accurate results, you need to pass stools at least 3 times a week.
If blood samples are indicated, they will reveal antibodies that appear as a result of the human body's reaction to the toxins secreted by the worms.Since there are about 150 types of parasites living in the human body today, no research method can be 100% accurate.
Worms or not?
Everyone knows that the main indicators that suspect the presence of parasites:
- 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 suspect the presence of worms in the house, but an accurate diagnosis can only be made after passing the body diagnostics and tests for parasites.These symptoms can indicate pathologies of the digestive system, 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), you may feel heaviness in the stomach after eating, it may be worms in the stomach.
Many people, after discovering the symptoms of a parasitic infection, immediately start taking all kinds of drugs and switch to a soft diet.In most cases, such measures will be useless, sometimes even harmful.Before starting treatment, you should be tested for worms, especially if the following symptoms occur:
- discomfort near the anus;
- decreased immunity, frequent colds;
- skin rashes (urticaria), inflammation (heat);
- persistent cough that does not go away even after treatment.
Parasites can have a negative effect on the central nervous system.This is evidenced by symptoms: excessive irritability, nervousness, fatigue.
When should you give blood?
A blood test for the presence of worms is performed if a person suffers from headaches, skin problems, itching around the anus, insomnia, digestive disorders (diarrhea, mucus in stool, constipation).With a parasitic infection, the patient will experience extreme fragility of nails and hair loss.
If a child is sick, their symptoms may look different.In addition to these symptoms, there is a strong secretion of saliva, increased appetite and lack of concentration.
Therefore, a blood test for the presence of antigens against worms is an important diagnostic measure that will detect parasites in the body and identify the disease as early as possible.To make a diagnosis, it is enough to provide only samples of feces, but this is not the case.Blood tests are rarely done because patients don't want to waste their time and money.
Not everyone knows that eggs in feces can be detected only if there are worms
- filled the bowels;
- is actively developing;
- multiply.
In adults, a blood test for worms 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.
When worm infection is suspected, when helminths are detected in domestic animals, a blood sample is also needed to carry out epidemiological diagnostic measures in a certain region.If the level of blood leukocytes rises, a person who does not show other pathological conditions should be checked for worms.
Sometimes regular examinations are carried out for people whose professional activity is closely related to the increased risk of parasitic infection;as a rule, this group includes:
- meat processing plant workers;
- farmers;
- veterinarians.
For fibroids, an inflammatory process in the adrenal glands, bladder and kidneys in women, it is required to determine the presence of antibodies against parasites.Men are recommended to take a blood test for prostatitis, adenoma and impotence.
A proven symptom of worms in the body is indigestion.In this case, a blood test 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, diarrhea and antibacterial drugs, castor and mineral oil.
If the examination of the large intestine is not prescribed (irrigoscopy procedure), 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 4-8 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 draw the attention of patients that one test is not always enough to identify worms in humans, especially for pinworm and roundworm eggs.Accordingly, the analysis is repeated at least 3 times with a frequency of 1-2 days.
How to present the crumb
Before checking for worms using scraps, you should familiarize yourself with the basic rules of the procedure.First of all, it is forbidden to wash the area around the anus, because it will destroy traces of parasites.For the most accurate results, it is equally important not to empty your bowels before scraping.
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 enterobiosis, it is better to use a special test tube with a long rod inside.Wrap the end of this stick with cotton wool and then carefully wet it:
- glycerin;
- distilled water;
- saline solution.
The procedure is quite simple and does not require much effort.The container is opened, a cotton swab is taken, the hips are separated, and then the swab is passed around the anus.
The rod with the obtained biological material is put back into the container, trying not to touch its walls, and the container is closed.
If the sample of biological material is delivered to the laboratory as soon as possible, the result of the study will be reliable.
You can determine the presence of parasites in yourself in another way, for example, using a glass slide with a special adhesive tape.
Doctors insist that the analysis technology must be performed accurately.So, first you need to remove the sticker from the glass slide, before doing this, apply it to the skin around the anus for a few seconds, spread the buttocks.After that:
- the tape is again attached to the glass slide;
- the material is taken to the medical institution where the research will be carried out.
There is an equally important rule: it is forbidden to touch the tape and glass with foreign objects when collecting biological material.Also, you should not refrigerate the analysis, as this will greatly affect the result and reliability of the study.
Nowadays, it is possible to check for 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 identifying 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 downside of the procedure is the rather high cost of the research.