In our time, the most modern and accurate in determining the degree of infestation of a child or adult human helminths is considered a blood test for worms. It is called an enzyme immunoassay and makes it possible to determine the presence of not one but several parasitic diseases. Even in the case when there is an opportunity to diagnose feces for parasites, smears or scrapings on their eggs, experts recommend that they donate blood to worms that affect its composition in order to obtain a more complete picture of the disease. Many adults prefer this method because it will show much more information than others. And the price for it is quite low. What can a specialist find out when a patient gives blood to worms? In the course of this process, the following information is identified with the greatest certainty:
- The number of helminths in the body;
- What kinds of parasites are present;
- The degree of their reproductivity.
It should be noted that to date, the diagnosis of blood on the worm is the most accurate. Also, this analysis allows you to put the correct diagnosis at the earliest stages of infection of a child or an adult with helminths, already on day 5.In addition, thanks to the blood indicators, it is possible to develop the correct treatment tactics in the fight against worms of various types, by determining antibodies and antigens. This accuracy is due to the fact that the essence of the study, called immunoenzyme( ELISA), is to test the response of the human body to infection with infestations.
Blood test for helminths in children
Due to the fact that the child is most often exposed to helminth infection, and the study of feces for parasite eggs is not always sufficiently informative, parents are usually recommended that children with suspected disability submit a general blood test andEIA.It is they who with the greatest accuracy will help to define worms in children's organisms. Most of all, the helminths, such as pinworms and ascarids, affect the change in the indices in this study conducted in children. They can be determined by reduced hemoglobin or elevated white blood cells.
Parents should know that it is possible to take a blood test for worms from a child in a private or public laboratory. The prices for this procedure in both institutions are approximately the same and quite low. The only thing that is required is the availability of special equipment that is designed to identify various types of worms in the child's body by blood. Also, remember that the baby should not be fed for 8 hours before the test. He can only drink non-carbonated mineral water.
ELISA for helminths and lamblia, interpretation of
This specific analysis is given, allowing to determine with accuracy the presence in children and adults of both large and microscopic protozoan parasites, when general symptoms are added to the depressed state, stool disorders, allergies and frequent colds. Even if the standard study of feces for helminth eggs does not show infection, an ELISA taken from a vein almost always gives a complete picture, determines and confirms the diagnosis.
Many patients, who are assigned the passage of this type of diagnosis, with the greatest accuracy determining the presence of worms in the body, are interested in how to correctly decipher it. Due to the fact that the results of this study are formed on the search for antigens of helminths, lamblia and other parasites of the corresponding antibodies, the testing systems calculate their volume. In deciphering the blood test for worms, such antibodies as JgM, JgG and JgA are taken into account. In order to understand whether there are parasites in the body and at what stage the invasion is located, the following results should be studied:
- If all 3 antibodies have a negative result, that is after each of them there is an icon( -), immunity is completely resistant to infection with helminths or protozoan lamblias;
- Post-infectious immunity, that is, a recent cure for an attack, is determined by the positive result of the antibody JgG( +);
- The acute phase of invasion with helminths or lamblias is set when the data obtained from blood on worms have the following values: JgM( +), JgG( - / +), JgA( - / +);
- In the chronic form of the disease, the results of this analysis look as follows: JgM( -), JgG( +/-), JgA( +/-);
- In terms of JgM( +), JgG( +), JgA( +), an exacerbation of a chronic infection is diagnosed;
- On the full recovery of the patient says a negative result of the antibody JgM( -).
Also in the enzyme-linked immunosorbent assay of the vein, quantitative, numerical indices of antibodies are indicated. A detailed explanation of them can be presented to the patient only by the attending physician. Studies of the presence and quantitative ratio of antibodies of different classes allow the specialist to determine the stage in which worm infestation occurs.
People are asking the question about how the blood is delivered to helminths, lamblia and other protozoa. It is taken from the vein. For more effective determination of worms 8 hours before the analysis is not recommended to eat food, you can only drink non-carbonated water. Two days before the procedure that allows you to identify helminths, you should not eat spicy, salty and fatty foods. Acceptance of any medication should be stopped 2 weeks before the passage of this study. In addition to ELISA, it is expected to show the presence of worms in the body and a blood test called general or clinical, especially hemoglobin and a high level of eosinophils in it.
Hemoglobin in worms
Decrease, rather than high hemoglobin, as some believe, indicates the presence of helminths. Parasites always lead to anemia, especially if a small child is infected. This is due to the fact that many worms are hemophags that feed on the blood of the host and absorb vitamin B12.The development of anemia due to the decrease in these bodies is also affected by toxins released by parasites, which act depressingly on the circulatory system.
Low hemoglobin is indicative of parasitism in the body of ascaris. This is due to the fact that sexually mature individuals of these worms consume about 40 ml of blood daily. It is manifested by fast fatigue, weakness, dryness and pallor of the skin with dizziness and headaches. With the help of nutrition correction and the use of iron-containing drugs in this case it is useless to fight anemia. It will pass independently only when the cause that caused it is eliminated.
Eosinophils with worms
A high level of these bodies in the peripheral blood indicates the presence of eosinophilia in the patient. It is this pathology, and not eosinopenia, which indicates the invasion of helminths, which include ankylostomidosis, strongyloidosis enterobiasis and ascariasis. The number of eosinophils can grow and with more rare diseases of this nature.
Patients with eosinophilia must be assigned radiography, especially if there are minimal pathological manifestations from the lungs. The reason for this is that many helminths have a pulmonary phase of development and affect the appearance of negative processes in them. If the number of these bodies in the blood is increased against the background of complaints that are characteristic of worms, an analysis of feces or a smear is done to find their eggs.