SCREEN TEST GIARDIA LAMBLIA, 20 gab.
Cena norādīta ar PVN
The Giardia Lamblia (Feces) rapid cassette test is a rapid
chromatographic immunoassay for the qualitative detection of Giardia
Lamblia antigen in human stool samples. Parasitic infections remain a
very serious health problem around the world. Giardia Lamblia is among
the most common protozoa known to be a major cause of severe diarrhea in
humans, particularly in immunocompromised people. Giardia Lamblia, also
known as Giardia intestinalis, is a flagellated parasite that colonizes
and reproduces in the small intestine, causing giardiasis. Parasitic
infections remain a very serious health problem around the world.
Giardia Lamblia is among the most common protozoa known to be a leading
cause of severe diarrhea in humans, particularly in immunocompromised
people. Giardia Lamblia, also known as Giardia intestinalis, is a
flagellated parasite that colonizes and reproduces in the small
intestine, causing giardiasis. The parasite attaches to the epithelium
via a ventral adhesive disk and reproduces via binary fission.
Epidemiological studies, in 1991, showed that Giardia infections
increased in the United States with a prevalence of approximately 6% out
of 178,000 samples. Generally, the disease goes through a short acute
phase followed by a chronic phase. G. lamblia infection, in the acute
phase, is the cause of watery diarrhea with elimination of trophozoites.
The stool returns to normal, during the chronic phase, with transient
emissions of cysts. The presence of the parasite on the wall of the
duodenal epithelium is responsible for the malabsorption. The
disappearance of the hairs and their atrophy lead to problems with the
digestive process in the duodenum and jejunum, followed by weight loss
and dehydration. However. most infections remain asymptomatic. Diagnosis
of G. lamblia is performed under the microscope after flotation on zinc
sulphate or by direct or indirect immunofluorescence, on unconcentrated
samples viewed on a slide. The rapid test can detect Giardia Lamblia in
fecal samples within 10 minutes. It is based on the detection of a 65
kDA coproantigen, a glycoprotein present in G. lamblia cysts and
trophozoites. The Giardia Lamblia (Feci) rapid cassette test is based on
a membrane technology that uses colloidal gold. A nitrocellulose
membrane is sensitized with a direct anti-Giardia Lamblia antibody. The
specificity of the test is guaranteed by an antibody specific for a
Giardia Lamblia antigen conjugated with colloidal gold. This conjugate
is dried on the membrane. The fecal sample must be diluted in the
extraction buffer provided in the test kit. When the extracted sample
comes into contact with the test strip, the conjugate migrates with the
sample by passive diffusion and the conjugate along with the sample
comes into contact with the anti-Giardia antibody in the test line T. If
the sample contains antigen G lamblia, the conjugate-antigen complex
will remain bound to the anti-Giardia reagent and a red line will
appear. The solution will continue to migrate to encounter a second
reagent which will bind to the control conjugate, thus producing a red
control line which confirms that the test is working correctly. The
result is visible within 10 minutes.
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