Parasitic infections in humans can be detected through blood and chair tests.Different infections have their own diagnostic standards.
Indications for testing parasite parasitic infections are not asymptomatic;They always have some symptoms.Therefore, you need to take blood tests or chairs for parasites if you have health complaints.Preventive testing is not required in the absence of symptoms.Symptoms of suspicious for parasitic infection:
- Extended increase in temperature at 37-37.5 degrees;
- careless fatigue;
- a rash on the skin that suddenly appears and disappears;
- digestion digestion - rumbles in the stomach, gas, diarrhea;
- Anemia's detection;
- Weight loss with normal appetite.
Only in some cases, a person should be tested for parasites, even if there is no complaint.This examination is when applying for work or enrollment of studies, obtaining a bathing certificate or testing before surgery.In such cases, referring to the requested tests give a practitioner or a pediatric general practice.
Which parasitic infections can be tested for?
Using different tests, each parasitic infection can be detected.There are:
- Intestinal parasites - live in intestinal lumen and excrete eggs in feces;
- Excellent - live in various organs, do not produce eggs.
Intestinal parasites can be identified by chair analysis, external parasites - only blood.
Desisthorchiasis
Infection caused by ravniworm desisthorchis.The person becomes infected by eating river fish - dried or dried, ie warmer.Desisthorchiasis is not spreading between people, ie the patient is not contagious.However, the sick person secretes parasitic eggs in the feces, enter the water, and then in fish.
Trichinosis
Trichinella are small worms living in pig muscles and wild animals.A person becomes infected if he eats undercutaneous or undercurrent meat.Trichinella from the intestines enter muscles and shape the capsule there.It is a feasible parasite that can reside in the muscles of decades without causing any symptoms.A person cannot infect others.
Ascariasis
Rounds are long round who live in the guts.Human infection occurs through dirty hands.In the body, the bodies are undergoing two phases of development.In the intestines, the form of a larvae from the eggs, which invest their lungs through the bloodstream.They live here two months, then swallow with spit and return to the intestines.Here are the rounds develop in adult worms and release eggs in the feces.The sick person can infect others if practical hygiene rules are not followed.
Toxocariasis
Toksokar are parasites of dogs and other fangs.Toksokara eggs are located on animal fur, and people are infected with contact with them.After swallowing eggs in the hose, the larvae appear from them, but there is no further development of worms.
The larvae are worn with blood in different organs and shape capsules in them.Like trichinel, I can live in tissues for many years without giving symptoms.The patient is not contagious and does not release the Toksokar eggs in the environment.
Eachinococcours
Echinococci are parasites living in the body of dogs.A person is infected with a contact with an animal.Echinokoccus eggs enter the intestines, where larvae appear.They are worn through the blood into organs, most often live in the liver.Here they form cysts - bubbles with liquid, within which Ehinococci is located.The person is not contagious for others and does not relieve parasitic eggs in the environment.
Giardiasis
Giardia is the simplest microorganism;Infection occurs by drinking unwanted water through dirty hands.Giardia parasites live in a thin hose, and mostly children suffer from giardiasis.The patient excretes Giardi in the feces and infects others if personal hygiene has not been observed.
Types of tests for parasites
To identify parasites in the body, you need to take a chair or blood test.The intestinal helmints and giardia can be determined by the analysis of the chair;Blood is auxiliary method.Excellent parasites identifies only blood, because they do not excrete eggs.
Blood tests for parasites are not 100% correct.They can either be or false positive or false negative.The reasons for false results are the characteristics of the body, the presence of allergies, simultaneous diseases and the ability of helmintha to camouflage themselves.
Some parasitic infections require ultrasound or x-ray.So, if you suspect the echinococus, you must first make an ultrasound of the liver.If there are cysts there, they donate blood for antibodies to echinococci.
Parasites live in kidneys extremely rarely.These are tropical protozoa schistosomi;They become infected swimming in polluted waters of tropical countries.Parasites in the human bladder can be identified using radiographs to detect antibodies.
Stool analysis for parasites
This analysis is called a test chair test and protozoal.The stool test can identify the following parasites:
- desisthorchis;
- Round;
- wide cassette;
- Board and Pork Tapeworm;
- strogyloid;
- whip;
- Giardia.
Fecal analysis for Helminthe is not exactly informative, because worms do not excrete eggs all the time, not in all samples.To get a precise result, you have to donate a table at least three times with a 3-day interval.It is better to examine warm feces.
Parasep technique is more reliable - this is the study of feces diluted in a special fluid.The method is also called an analysis of chair enrichment.Sometimes in the coprogram are revealed for Helminth eggs and protozoa - detailed analysis of the chair for diagnosing digestive disorders.
Modern Giardia research is to discover its antigens in the feces using the PCR method.The technique has a reliability of 90-95%.
Scraping
Using the scraping method identifies only Pinworms.These are small worms that live in colon.At night, women's worms crawl and lay eggs on the skin around the anus.The disease caused by Pinworms is enteobiasis.
Enterobiasis mainly affects young children.The child can constantly infect skin scratches near the anus, then put their hands in the mouth.
The Pinworms test was performed in the morning without washing the child.The skin is applied a piece of adhesive strip around the anus.Then he gleaned for a glass slide.The laboratory technician examines a glass under a microscope and is discovered accessories for attaching eggs.
Blood test
The general blood test in the presence of the parasite in the body gives indirect signs:
- Increasing the number of eosinophils;
- An increase in ESR.
In the acute phase of the disease, the number of eosinophiles increases abruptly, greater than 20%.In the chronic phase, the general blood test is practically unchanged.
Using the enzymatic blood mash in the parasites, antibodies were discovered.The study is suitable for diagnosing intestinal helicops and giardies in the acute phase of the disease, as well as for the identification of the present rack.
Types of blood tests for parasites
Blood tests for parasites are the same in adults and children.In children, the study is informative, because they are more often ill in acute form.The adults prevail chronic helmintases, so blood tests often give false results.
Elisa
The enzyme imunoasay is used for the diagnosis for parasites.This is the detection of antibodies on Helminthe and the protozoa in the blood.Elisa is the most favorable in the acute phase of the disease, when antibodies are active.In the chronic phase of Helminths, they become masked, and the body stops producing antibodies against them.Therefore, ELISA gives a fake negative result.If a person has an allergy or autoimmune disease, false antibodies will form, and the result of ELISA will be fake positive.
The blood test for parasite detection must be confirmed by other test methods.
In children
Both tests for parasites - blood and feces - will be informative for the child.Children suffered mainly from the acute form of parasitosis.The testing of a chair for CRM and Protozoa is informative in 90% of cases, ELISA - in 70% of cases.
How and where to get to the blood test for parasites
You can undergo an exam at the clinic at your place of residence or in the paid lab.To get a referral to test at the clinic, you must contact the General Practice Expert, Pediatrician or an expert for infectious diseases.You can take it to yourself in any paid lab.But if there is no health complaints, it is not necessary to check.Parasitic infections that are asymptomatic (toxocariasis, trichinosis) do not require treatment.It is prescribed only when symptoms appear.