Analysis For Lamblia In Children And Adults: Decoding The Price, How And Where To Take

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Analysis For Lamblia In Children And Adults: Decoding The Price, How And Where To Take
Analysis For Lamblia In Children And Adults: Decoding The Price, How And Where To Take

Video: Analysis For Lamblia In Children And Adults: Decoding The Price, How And Where To Take

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Video: Giardiasis - Giardia Lamblia 2023, February

Page content

  • Blood test (ELISA) for lamblia
  • PCR on lamblia
  • Analysis of feces for lamblia

    • How to take
    • Decoding
  • IHG method
  • You can defeat parasites!

Giardiasis is a fairly common disease that is provoked by giardia. Due to the long asymptomatic development of the disease, most people are not even aware of the parasite infection.

Usually, giardiasis is diagnosed by chance during routine checkups. To detect parasites, doctors prescribe an analysis for various types of lamblia.

What to do in such a situation? To get started, we recommend reading this article. This article details the methods of dealing with parasites. We also recommend contacting a specialist. Read the article >>>

What do lamblia look like
What do lamblia look like


Blood test (ELISA) for lamblia

The essence of the analysis for lamblia is to determine the reaction of an antibody with an antigen. ELISA allows you to determine infection by the presence of antibodies to lamblia in the blood. When infected, the immune system produces Ig antibodies with markers M and G to fight against lamblia.

This diagnostic method has many advantages:

  • allows you to determine the stage and form of development of the disease;
  • it becomes possible to identify a human carrier;
  • carried out in a short time;
  • high accuracy - about 90%;
  • a comfortable way to track the dynamics of invasion;
  • availability.
How to take Decoding
The analysis requires a venous blood sampling. A few days before the procedure, the patient must not consume alcoholic drinks, tobacco products. The procedure is carried out in the morning on an empty stomach.

Taking medications should be discussed with the attending physician - this will allow a reliable diagnosis to be made. 10 hours before the tests, you should not eat, drink coffee, tea, juice. It is permissible to use water without gas.

Decoding is based on the indicators of IgM and IgG antibodies.

  • The presence of IgM indicates an acute course of the invasion;
  • The presence of IgG is a sign of chronic giardiasis or recent recovery. Antibodies remain in the body for some time after recovery;
  • If IgM and IgG are detected, it is a chronic form at an exacerbation stage.

Also, the results are determined by the indicator of OPD:

  • OPD below 0.85 is considered normal - no parasite;
  • OPD more than 1 - positive result, chronic, exacerbated course of infection;
  • OPD in the region of 0.85-1 is considered doubtful. To confirm the diagnosis, a repeated analysis for lamblia is needed, which is accompanied by a study of feces.

PCR on lamblia

The technique allows you to identify the parasite in the upper intestine. The Giardia test is based on the study of Giardia DNA.

For research, it is necessary to donate feces, blood, in rare cases, bile. PCR indicates the stage, intensity of invasion, determines the dynamics of the therapy.

How to take Decoding
The preparation and collection of biomaterial is no different from other stool analyzes. The tests are carried out without the use of laxatives or other medications, since they can affect the results. The diet does not really matter.

For the procedure, you must purchase a sterile, clean container. Feces are collected in the morning, upon waking up, before hygiene procedures. The collected biomaterial is placed in a container and tightly closed. In general, you should get about 2 teaspoons of feces.

It is important to avoid mixing stool with urine or other liquid - this can affect results. After collection, you need to send the jar with the contents to the laboratory, in extreme cases, it can be stored for no more than 8 hours in the refrigerator.

The results can be:

  • positive - indicate the presence of a parasite, treatment is required;
  • negative - the person is healthy, no treatment is required;
  • doubtful - it is necessary to re-analyze. If the results are identical, the person is healthy.

PCR has an accuracy of about 70%, therefore, to obtain reliable results, it is necessary to undergo the study several times. Usually, the patient needs to donate feces for 3 consecutive days - this increases the accuracy to almost the maximum.

Analysis of feces for lamblia

Stool studies are prescribed on the 5th day after the manifestation of negative symptoms. For the analysis, the patient must show clinical signs of invasion, for example, diarrhea, stomach cramps. Only after a personal examination, the doctor prescribes diagnostic procedures.

How to take

The analysis is no different from collecting feces for PCR. The preparatory procedures and recommendations are identical.


Results can also be positive, questionable, and negative. If a parasite is found, its cysts are considered positive and treatment is required. In other cases, the analysis is repeated a week later.

IHG method

Immunochromatographic analysis is an effective and most reliable method for diagnosing lamblia. Preparation for IHG does not require adherence to a diet. For the study, it is necessary to donate feces - the manipulation of the collection is no different from other tests.

Invasion is indicated by latent blood impurities in the feces. The analysis results can be received within 15 minutes after delivery. Despite the high efficiency of IHG, PCR is prescribed to the patient for reliability.

Giardia affects the human intestines, causing many negative symptoms. Treatment of giardiasis is a long and laborious process. It is better to prevent infection by observing preventive measures than to treat it for a long time.

There are many methods for diagnosing the disease, but since the invasion in the early stages does not have negative symptoms, it is more often found during an exacerbation or in a chronic form.

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