Laboratory tests help to more accurately demonstrate 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 its disadvantages and its 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 an accurate diagnosis.
This fact is explained by the fact that worms have several specific developmental stages;they can live and parasitize in various parts of the digestive tract.To get the most accurate result, you need 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 the toxins secreted by the worms.Given that around 150 species 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 by 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 undergoing the diagnosis of the body and passing 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, stool disorders (diarrhea, constipation), after eating you may feel heaviness in the stomach, it may be worms in the stomach.
Many people, having discovered signs of parasitic infestation, immediately begin to take all kinds of medications and switch to a gentle diet.In the vast majority of cases, such measures will be useless and sometimes even cause harm.Before starting treatment, you need to undergo a test for worms, especially if you have experienced the following symptoms:
- discomfort near the anus;
- decreased immunity, frequent colds;
- skin rashes (hives), inflammation (boils);
- constant cough, does not disappear 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 test 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 infestation, 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, powerful saliva secretion, increased appetite and lack of concentration are noted.
Therefore, a blood test for the presence of antigens in worms is an important diagnostic measure that will detect parasites in the body and determine the disease as early as possible.It is believed that to make a diagnosis it is sufficient to provide only stool samples, but this is not the case.Blood tests are rarely performed because patients do not want to waste time and money.
Not everyone knows that eggs in feces can only be detected if worms are present
- filled the intestines;
- they are actively developing;
- multiply.
A blood test for worms in adults will show infestation at a very early stage.To carry out such an analysis, you should 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 a worm infection is suspected, when helminths are detected in pets, 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 elevated, which does not indicate other pathological conditions.
Sometimes routine tests 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 against parasites is necessary for fibroids, an inflammatory process in the adrenal glands, bladder and kidneys in women.Men are advised to undergo a blood test for prostatitis, adenoma and impotence.
A proven sign of the possible presence of worms in the body is indigestion.In this case, the blood test is 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, it is necessary to stop taking antiparasitic, antidiarrheal and antibacterial drugs, castor oil and mineral.
When an examination of the large intestine (irrigoscopy procedure) is not planned, 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 temperatures above freezing.Optimally, it is 4-8 degrees for no more than 8 hours.
Stool testing 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 need to take material from different parts of the stool.To obtain an accurate response, feces are collected within half an hour after defecation and the jar 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 eggs of pinworms and roundworms.As a result, the analysis is repeated at least 3 times with a frequency of 1-2 days.
How to present a scraping
Before checking for worms by scraping, you need to familiarize yourself with the basic rules of the procedure.First of all, it is forbidden to wash the area around the anus, as this would destroy traces of parasites.To obtain the most accurate result, it is equally important not to empty the intestine before performing a curettage.
Scrapings for worms are performed in a laboratory or clinic, but worms can also be detected at home.It is recommended to wear medical gloves before taking a sample.
If the development of enterobiasis is assumed, it is better to use a special tube with a long stick inside.The end of this stick will need to be wrapped with cotton wool and then carefully soaked:
- glycerine;
- distilled water;
- saline solution.
The procedure is quite simple and does not require much effort.You open the container, take a stick with cotton, spread your buttocks apart and then pass the stick around your anus.
The rod with the obtained biological material 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 slide with a special adhesive tape.
Doctors insist that the analysis technology must be performed exactly.So, first you need to peel the sticker off the slide, apply it to the skin around your anus for a couple of seconds, spreading your buttocks apart before doing so.After that:
- the tape is attached to the slide again;
- 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 the tape and glass with foreign objects.Also, do not store the analysis in the refrigerator, as this will significantly affect the result and reliability of the study.
Nowadays it is possible to check for a parasitic infection by providing a saliva sample.The test is simple and does not require any prior preparation on the part of 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.