Laboratory tests help most accurately prove the presence of parasites in the human body.Usually, blood and stool samples are required to test for worms.
Each modern method has both disadvantages and advantages.For this reason, doctors recommend conducting a comprehensive examination of the body to find out whether a person is infected with worms or not.
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 a number of specific stages of development;They can live and parasitize in many different parts of the digestive tract.For the most accurate results, you need to donate stool at least 3 times a week.
If a blood sample is assigned, it will detect antibodies that appear as a result of the human body's reaction to toxins secreted by worms.Because there are currently about 150 species of parasites living in the human body, no research method can be 100% accurate.
Are there worms or not?
Everyone knows that the main signs that serve as a basis for suspecting the presence of parasites:
- a person is excessively thin due to increased appetite;
- stomach pain after eating;
- Morning sickness attack.
Such symptoms will allow you to suspect that you have worms at home, but an accurate diagnosis can be made after conducting a diagnosis of the body and taking tests for parasites.These signs can indicate gastrointestinal diseases, metabolic disorders and other diseases.
If you are infected with worms, the symptoms will be as follows: bloating, periodic discomfort in the abdominal cavity, indigestion in the stool (diarrhea, constipation), after eating you may feel heaviness in the stomach, this may be due to worms in the stomach.
Many people, after discovering signs of parasitic infection, immediately start taking medications and switch to a gentle diet.In most cases, such measures will be useless, and 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 rash (hives), inflammation (boils);
- Continuous cough, even after treatment, does not go away.
Parasites can negatively affect the functioning of the central nervous system.This is expressed by signs: excessive stress, irritability, fatigue.
When should you donate blood?
A blood test to detect the presence of worms is performed if a person suffers from headaches, skin problems, perianal itching, insomnia, digestive disorders (diarrhea, mucus in the stool, constipation).When infected with parasites, patients will notice brittle nails and excessive hair loss.
If a child is sick, their symptoms may appear differently.In addition to these signs, there are also strong salivation, eating a lot, and lack of concentration.
Therefore, a blood test to find the presence of worm antigens is an important diagnostic measure to help detect parasites in the body and identify the disease as early as possible.There is an opinion that for diagnosis, only providing a stool sample is enough, but in reality 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 stool can only be detected if worms are present
- fills the intestines;
- is actively developing;
- multiply.
Blood tests for worms in adults will show infection at a very early stage.To carry out such an analysis, you should take blood from the ulnar vein, this will allow you to accurately and quickly determine the type of parasites and choose how to remove them.
Blood sampling is also necessary if there is a suspicion of worm infection, when helminths are detected in domestic animals, to carry out epidemiological diagnostic measures in a specific area.It is necessary to check whether a person is infected with worms if the level of white blood cells in the blood is elevated, which does not indicate other medical conditions.
Sometimes routine examination is carried out for people whose occupational activities are closely associated with an increased risk of parasitic infection;According to regulations, this group includes:
- meat processing plant workers;
- farmer;
- veterinarian.
Determining the presence of antiparasitic antibodies is necessary for uterine fibroids, an inflammatory process in the adrenal glands, bladder and kidneys in women.Men are advised to have blood tests to detect prostatitis, adenoma and impotence.
A proven sign that worms may exist in the body is indigestion.In this case, blood tests are performed for both men and women.
Stool analysis
To get accurate results, the patient must follow clear rules.So, 1 week before the analysis, you need to stop taking antiparasitic, antidiarrheal and antibacterial drugs, castor and mineral oil.
When a colon examination is not scheduled (vitroscopy procedure), blood donation is allowed no later than 2 weeks after the stool examination.You should know that the material container should not be stored at temperatures above zero. Optimum is 4-8 degrees for no more than 8 hours.
Stool testing for protozoan parasites is performed as follows:
- take 2 spoons of stool;
- Transfer to a clean, dry container;
- cover with lid.
Ideally, you need to get material from different parts of the stool.To get an accurate answer, stool is collected no later than half an hour after defecation and the vial is immediately transferred to the laboratory.
It is important to draw the patient's attention to the fact that a single test for identifying worms in humans is not always enough, especially for pinworm and roundworm eggs.Accordingly, the analysis is repeated at least 3 times with a frequency of 1-2 days.
How to submit a scrape
Before checking for the presence of worms by scraping, you need to familiarize yourself with the basic rules of the procedure.First of all, do not wash the area around the anus as this will destroy traces of parasites.To get the most accurate results, it's equally important that you don't empty your bowels before shaving.
Worm detection is done in a laboratory or clinic, but worm detection can also be done at home.Medical gloves should be worn before sampling.
If there are assumptions about the development of intestinal helminths, 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, then carefully soaked:
- glycerin;
- distilled water;
- salt solution.
The procedure is quite simple and does not require much effort.The container is opened, a cotton stick is taken, the buttocks are spread wide and the stick is inserted through the anus.
The rod containing the resulting biological material is placed back into the container, trying not to touch its walls, and the container is closed.
Research results will be reliable if biological material samples are delivered to the laboratory as soon as possible.
You can determine the presence of parasites in your body in another way, for example, using a glass slide with special adhesive tape.
Doctors insist the analysis must be done accurately.Therefore, first you need to peel the patch off the glass slide, apply it to the skin around the anus for a few seconds, and spread it over the buttocks before proceeding.Afterward:
- the tape is again attached to the slide;
- documents are taken to the medical facility where the study will be performed.
There is another no less important rule: when collecting biological material, it is forbidden to touch ice and glass with foreign objects.In addition, you should not store analysis results in the refrigerator because this will greatly affect the results and reliability of the research.
Today, it is possible to test for the presence of parasitic infection by taking a saliva sample.The test is simple and requires no 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.
This 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 research.