What tests need to be done for worms, modern methods for determining parasites

how to do the test for the identification of parasites in the body

Most current parasitic infections help to identify a well-scheduled worm test. The diagnosis is made in specialized laboratories with the latest equipment and reagents.

In addition, each parasite analysis has a series of specific requirements for its implementation. What tests need to be done for worms and how to do them correctly, as well as how to interpret them correctly, we understand below.

Types of worms detection tests

There are several types of analysis, the totality of results of which may indicate a particular parasitic invasion. However, it must be remembered that only the attending physician can deal with the decoding of the results and the diagnosis.

Blood test

One of the most reliable and informative diagnostic methods (with 93% accuracy) for helminths is a blood test for parasites. In medical circles, this study is called an ELISA (immunoenzymatic assay for the presence of parasites in the human body). The study allows to detect in the blood serum the presence of antibodies that have formed in relation to the antigens. That is, in relation to parasitic infections / individuals.

The advantage of such a blood test for parasites is the ability to detect helminth infestation in the early stages, when helminths are not yet able to reproduce and do not lay eggs, which can be detected by a coprogram (aspecial analysis of stool for ovarian leaf).

It is important to understand that the following parasitic infections can be detected with this blood test for parasites:

  • Opisthorquiasis;
  • Giardiasis;
  • Enterobiasis;
  • Ascariasis;
  • Toxoplasmosis;
  • Toxocariasis;
  • Trichinosis and others.
blood test for parasites

Blood for parasites is drawn from a vein in the morning on an empty stomach. At the same time, before carrying out the study, it is worthwhile to carry out the preparatory measures.

In particular, for a blood test for parasites, follow these rules:

  • Do not eat fatty, fried and complex foods three days before diagnosis. Food must be simple and easy to digest;
  • Alcohol and any medications must be stopped three days before the study;
  • The day before donating blood to worms, you need to limit yourself to excessive physical and psycho-emotional stress;
  • It is worth quitting at least 3-4 hours in advance.

Important:Performing a blood test for parasites in accordance with all of the above rules allows you to obtain the most accurate result and exclude a false positive result. If the reader is interested in how long it takes to analyze the parasites, the time to obtain this result will vary from 3 to 9 days.

Stool analysis

In addition to the blood for worms can be donated to obtain accurate information, for the same purpose, feces can be donated to the coprogram. This type of diagnosis makes it possible to identify helminth eggs in the faeces during the period of their active reproduction. Therefore, if you do not know how to test the worms, but want to do it yourself and immediately, just contact any commercial laboratory with stool samples for research. By the way, the family doctor will refer you for this test first, if you suspect helminths.

It is important to understand that if a blood test for worms reveals the maximum number of parasites in the body, the list of worms when examining feces looks a little different.

In particular, when checking stool samples for worms, eggs and individuals of the following worms can be identified:

stool analysis to identify parasites
  • Vlasoglav;
  • Krivogolovka;
  • Pinworm;
  • Ascaris;
  • Necator;
  • Hepatic and feline worms;
  • Tape worm;
  • Pig and bovine tapeworm;
  • Wide ribbon;
  • Trematode;
  • Schistosoma et al.

It is important to know that such a study is not always informative, since the parasite may be in the maturation phase at the time of the delivery of feces and not yet be ready for laying. Therefore, to obtain a reliable result, it is advisable to pass stool analysis three times with an interval of 2-3 weeks.

Those who are interested in how they are tested for parasites through a stool study should know that the stool must be collected in a sterile plastic container after morning evacuation. You don't need to wash yourself before going to the bathroom. At the same time, it is advisable to do your business not in the bathroom, but in a container without particles of disinfectants or detergents.

It is important to ensure that urine and genital secretions do not enter the biomaterial. Collect samples from different parts of the stool (front, back and sides). Feces collected in a 2/3 container should not be stored, but sent immediately for analysis. The parasites' eggs can live in the external environment for up to 10 hours. Storing the sample reduces the likelihood of obtaining a reliable result.

Important:the doctor must also advise on how to donate feces correctly when sending a referral.

If the reader is interested in how many days such an analysis can be made, the diagnostic time here is much shorter than with a blood test for parasites. In most cases, the result is ready at night and sent to the patient's email (if the diagnosis is made in a commercial laboratory). The maximum deadline for obtaining the result of the coprogram is 1 to 2 days, subject to days off.

Important:the smallest patients are often tested for scraping enterobiasis. For this, a piece of adhesive tape is applied to the skin folds of the baby's anus and tightly pressed. The sample taken is glued to a special laboratory glass and sent for research. In this way, the moth's eggs can be identified.

When is a worm test necessary?

Testing for worms is recommended primarily for people who may be at increased risk of infection.

Medical practice shows that helminthic invasion is much more common in the following categories of people:

  • workers with frequent contact with animals: farmers and veterinarians;
  • hunters and fishermen, as well as those who like to travel frequently to nature for recreation;
  • people living in rural areas, where various infectious diseases often arise;
  • health professionals who often need to communicate with infected patients;
  • workers in kindergartens, schools and other public places. We must not forget the chefs and people working in the catering sector, who often have to deal with raw meat, fish, vegetables and aromatic herbs, because the products must often be tasted before they are fully cooked;
  • people who do not observe personal hygiene do not wash their hands before eating and possibly the products themselves before eating;
  • a common inhabitant of the city who may have cockroaches or flies, or other insects at home, because even ants carry several helminths.

All of these people need to have a blood test to see if there are worms, or to have a skin scrape, and feces are also possible. The attending physician is committed to the correct selection of the type of analysis, depending on the symptoms that appear during the infection.

The symptoms can be different, let's see the main ones:

  1. a marked decrease in weight, while the person has a good appetite and eats more than normal. But over time, the appetite disappears, as the general condition worsens;
  2. the presence of itching and irritation in the anus, burning in the anus is possible;
  3. pale skin due to lack of nutrients, vitamins are no longer absorbed and all useful vitamins and minerals are consumed by worms;
  4. due to decreased immunity and vitality, chronic fatigue and fatigue appear;
  5. the presence of problems in the gastrointestinal tract, from nausea and vomiting to pain and problems in the stools, in the first place, indicate the need to perform worms tests in adults;
  6. headaches and dizziness, which are associated with the release of toxins by worms.

If you or your loved ones have health problems and at least 2 or 3 signs on the list have been recorded, there is a high risk of worms.

As statistics show, most people on the planet are infected with helminths, but do not know it, and continue to be treated for the consequences of parasitic helminths. So, ask the clinic what tests are done for worms and get tested to get rid of the root cause. Before asking yourself what tests to do for worms on adults or children, it is recommended to pay attention to the preparatory process.

Preparing for worms testing

how to prepare for a parasite test

Blood or stool tests must meet certain requirements, for which certain preparation rules must be followed:

  • one week before the exams, anthelmintic drugs should not be used, either in pharmaceutical form or in various folk remedies, as they can cause a negative result in the exam, even with the evident presence of helminthiasis;
  • also a week or 4-5 days before the planned clinic visit, you need to refuse sorbents and laxatives, otherwise, the tests can also give a negative result;
  • About 3-5 days before visiting a medical center, you need to start eating dietary foods, it is not recommended to drink soft drinks, eat sweet, sour, spicy and smoked foods, and you should also give up fatty foods.

With these simple but effective preparatory measures, the blood test or fecal worm will be the most accurate, meaning that you can start treatment quickly.

Analysis for ascariasis

Ascariasis is also widespread in children and adults: it affects up to 20% of the world population. Ascaris worms, like oxymorons, belong to the nematode group, but have a much more terrible appearance: the length of the body can reach 30-40 centimeters. Fresh vegetables and fruits are often the source of the disease: roundworm eggs in the soil can survive for several years, reaching the table directly in the garden.

Symptoms of ascariasis are weakness, fatigue and itching in the anal area. Roundworms are able to spread throughout the body, causing damage to the liver, respiratory tract, gallbladder - in this case, secondary signs caused by organ disease are added to the primary signs.

how to test for ascariasis correctly

The development of ascariasis can even lead to the patient's death.

A blood test for antibodies is most effective for detecting ascaris in the body.

It does not require any special preparation, but it is advisable not to eat for four hours before the analysis.

Analysis of opistorquiasis

Opistorchiasis is caused by worms - the cat's paw. The disease has a pronounced local distribution. You can become ill with opistorchiasis by eating infected fish, which is the intermediate host of the parasite. The worms develop in the bile and pancreatic ducts, causing infections, allergic reactions, liver disease, flank pain and fever.

Lack of timely treatment can cause damage to the central nervous system, chronic gastritis, stomach ulcers and duodenal ulcers.

A blood test for specific IgG antibodies is the most effective method for detecting feline fasciole. A reliable result can be obtained by conducting a study from six to eight weeks after infection. During the transition to the chronic stage, the indicators may return to normal, in which case it will not be possible to determine opistorchiasis by this method.

Analysis for trichinosis

Trichinosis is caused by Trichinella - helminths that enter the human body with contaminated meat and lard. Food in large stores should be tested for the presence of the parasite, so that private farmers, hunters and people who buy meat in unverified locations are often victims of trichinella. The eggs of this parasite are not able to destroy the usual heat treatment, and salting, smoking does not help. A small piece is sufficient for the infection.

The symptoms of the disease in the first two or three weeks are allergic reactions of the body, nausea, diarrhea, vomiting. Then there is an organ disease in which the worms developed: parasites can select any part of the body and destroy it over many years. Ultimately, trichinosis can lead to the patient's death or irreversible disturbances in the body.

If trichinella is suspected, the patient is referred for a blood test for specific antibodies. With a negative result and continuous symptoms, it is recommended to have a second test in a few weeks: in the early stages, the disease may not be detected, a high precision is obtained by a blood test from the second to the fourth week after infection.

26.09.2020