MEGACOR FASTest GIARDIA Strip Instruction Manual
- June 9, 2024
- MEGACOR
Table of Contents
Version 01/2022
Click Here For More Information About FASTest ® GIARDIA Strip
ad us. vet.
Test-kit for the qualitative detection of Giardia duodenalis antigens in
the faeces of pocket pets,
pets and farm animals
INSTRUCTIONS FOR USE
In vitro diagnosticum
FASTest GIARDIA Strip
- INFORMATION ON THE TEST-KIT TEST-KIT COMPONENTS 1 test-kit FASTest ® GIARDIA Strip contains:
– 2, 10 or 25 dipsticks coated with monoclonal antibodies – 2, 10 or 25 sample tubes with 2.0 ml buffer diluent each – 1 instructions for use
STABILITY AND STORAGE
Store at
15–25 °C| Expiry date
– see label
---|---
APPLICATION AND ABBREVIATIONS
For veterinary use only | Lot number |
---|---|
In vitro diagnosticum | Do not use test-kit components from different kits, |
lot numbers or beyond stated expiry date.
Follow instructions for use precisely| TL – TEST line, CL – CONTROL line, LF
– Lateral fl ow R – Revolver test tube, P – sample tube
LIABILITY
The entire risk due to the performance of this product is assumed by the
purchaser. The manufacturer shall not be liable for indirect, special or
consequential damages of any kind resulting from the use of this product.
ACCURACY
Sensitivity 97.2 %
Specificity 99.5 %
(Comparison Method: ELISA)
INTRODUCTION
Giardia is known to be one of the most common enteritis parasites in pocket
pets, pets, farm and wild animals as well as in humans (zoonosis) world-wide.
G. duodenalis occurs in varying phenotype (A to G), which differ in their
interactivity and their host spectrum. Types A and B have zoonotic potential.
Newborns and young animals are costly affected. Prevalences vary in cats and
dogs, depending on age (>70 % under 1 year), husbandry (10 % in single
husbandry up to 100 % in breeding and animal shelters) and mmune status.
Transmission (direct contact, by contaminated food, water, objects, grooming
and vectors like flies etc.) happens fecal-orally by ingestion of highly
infectious and very resistant cysts being discharged by other animals or
humans. Only five to ten cysts are enough to cause an infection.
G. duodenalis has an asexual life cycle. In the uodenum of the infected
animals, two so-called trophozoites emerge from the incorporated cysts
(excystment).
These multiply by duplication and attach via suckers to the duodenal surface.
Free trophozoites turn into their permanent forms, the cysts (encystment),
especially in the ileum. These are excreted in large amounts (10 7 /g faeces)
and mostly intermittent, i. e. not with every defecation. The prepatent period
averages 5 to 16 days.
The main symptom of giardiasis is diarrhoea, more or less intensive, that can
run from symptomatic (acute, chronic, self-limiting, periodic-intermittent or
continuous) to asymptomatic. Independent on the progression, cysts and / or
trophozoites can be egested (primarily with strong diarrhoea).
Giardia cysts can be differentiated from cysts of different coccidia species
only by microscopically experienced people. This is lso true for Giardia and
Tritrichomonas foetus trophozoites.
For that reason, modern aetiological coprodiagnostics using FASTest ® GIARDIA
Strip should be preferred to microscopical proof. For epidemiological reasons,
all clinically symptomatic and clinically asymptomatic animals should be
tested with FASTest ®
GIARDIA Strip. This enables the veterinarian in the clinic to introduce a
specific treatment as well as a broad prophylaxis.
INFORMATION ON THE SPECIMEN MATERIAL
Due to the normally inhomogeneous or nest-like dissemination of antigens in
the faeces, the specimen material has to be mixed up homogeneously (spatula,
vortex-mixer) before sampling. For the test, the required amount of faeces as
described in point 4b / Specimen collection and preparation, is needed. The
amount depends on the consistency of the sample. Use the attached spoon.
Non-cooled (15–25 °C), the sample should be tested within 4 hours! At 2–8 °C,
the sample can be stored up to 4 days, permanently at minimum −20 °C.
Keep in mind that the sample material, as well as all used test-kit
components, should have reached room temperature at the time of application.
Endogeneous and exogeneous interfering substances of the sample (e. g.
proteases, mucosa components, blood, but also viscosity, pH-value as well as
grass and cat litter) can ause interferences (matrix effects) that can infl
uence the target measurement. These can lead to an impaired LF and / or
unspecifi c reactions on the TL and CL.
SPECIMEN COLLECTION AND PREPARATION
a. Open the sample tube with the buffer diluent.
b. Mix the faeces sample homogeneously (applicator, vortexer). Then mix the
required sample volume (compact:
1 level spoon, pulpy: 2 level spoons, fluid-watery: 3 level spoons of faeces)
steadily into the buffer diluent (fig.1).
c. Close sample tube tightly and rotate it easily to get the mixture as
homogeneous as possible (fig.2).
d. For sedimentation of gross faeces particles place the sample tube on a fl at
and horizontal surface for 1–5 min- utes.
TEST PROCEDURE
-
Remove the dipstick from its foil pouch shortly before use.
-
Introduce the dipstick vertically and with the arrows pointing downwards into the sample tube for at least 1 minute. The liquid level (meniscus!) must not exceed the white arrowheads (fig.3).
-
Remove the dipstick from sample tube as soon as the sample-buffer mixture (SBM) has reached the CL. If so, the blue CL will appear slowly but surely (fig.4 / 5). If the
CL does not appear after 5–10 minutes, a new SBM must be prepared and sedimented for at least 5 minutes. The dipstick must be held only in the supernatant until the LF has reached the CL (see also 7. Precautions for users*). -
Place the dipstick on a fl at and horizontal surface for incubation.
READING OF THE TEST RESULT
Read the test result after 5 (max.10) minutes.
Positive test results may be observed earlier, depending on the concentration
of antigen in the sample.
POSITIVE TEST RESULT (fig.4)
A red TEST line of any intensity (varying from very weak to strongly
intensive) and a blue CONTROL line appear.
NEGATIVE TEST RESULT (fig.5)
Only a blue CONTROL line appears. This line indicates, irrespective of its
intensity, that the test has been performed properly. Please also note issue
9.4.
INVALID TEST RESULT
No CONTROL line visible. The test should be repeated using a new dipstick *.
PRECAUTIONS FOR USERS
-
The guidelines for working in medical laboratories must be observed. It is recommended to wear disposable gloves and other personal protective equipment (protective clothing, possibly a face mask). Wash and disinfect hands after completing the test.
-
Label sample material and associated sample tube to ensure a precise assignment.
-
Use a new sample tube for each sample.
-
The buffer diluent contains low concentrations of toxic sodium azide as a preservative, therefore avoid skin / eye contact and / or ingestion.
-
The sample material must be seen as potentially infectious and disposed of accordingly, together with the used test-kit components.
-
To avoid an application error / external infl uence (e. g. too much sample material, too short sedimentation time, components in the faeces that clog the pores of the suction pad), the test can be repeated. Use a new dipstick and carefully observe the sample preparation. It is advisable to only hold the dipstick in the supernatant when repeating the test until the LF has reached the CL.
TEST PRINCIPLE
The FASTest ® GIARDIA Strip is based on latest rapid immunochromatographic
technique.
Surface antigens of intact or fractionated Giardia duodenalis cysts and / or
trophozoites will react at the conjugate pad with mobile antibodies bound to
red latex particles. Migrating (“lateral fl ow”, LF) along the nitrocellulose
membrane, these specifi c antigen-antibody complexes are bound by fi xed
monoclonal anti-Giardia antibodies (mAbs) producing a red TEST line (TL). The
intensity or width of the TL depends on the concentration of Giardia antigens
in the introduced amount of sample.
A correct test procedure will be indicated by a second, blue CONTROL line
(CL). The used mAbs guarantee a high level of specifi city for the aetiologic
detection of G. duodenalis antigens.
The FASTest ® GIARDIA Strip does not rely on the presence of intact cysts and
/ or trophozoites.
INFORMATION FOR THE INTERPRETATION
- The interpretation of the test result should always be based on anamnestic and clinical data as well as the therapy and prophylaxis possibilities.
- Any non-described colour or contour variation of TL and CL within the indicated incubation time or after more than 10 minutes (e. g. greyish, shadow-like lines) has to be considered as unspecifi c reaction and therefore as negative test result.
- TL can vary both in intensity (from weak to intense red) and width. Therefore, any red line appearing within the required incubation time is to be interpreted as a positive test result.
- Because of intermittent antigen shedding, with ongoing diarrhoea a single negative test result should be confi rmed by testing a serial faeces sample (individual test- ing of at least three consecutive faeces samples).
- Drug therapy can lead initially to an increase of cyst and / or trophozoite shedding. Reinfections due to the prepatence could also appear. Both could result in positive test results. First of all, therapy control should be based on clinical symptoms (decrease of diarrhoea in quantity and quality), not only of a single test result. 6. Be aware, every dog or cat tested positive is considered potentially infectious for animals and humans (zoonosis!), especially for kids!
Supplied Exclusively To The UK
Veterinary Market By
Vetlab Supplies Ltd
Visit Our Website
www.vetlabsupplies.co.uk
Telephone: 01798 874567
email us: info@vetlabsupplies.co.uk
Manufacturer: 6912 Hörbranz – AUSTRIA
www.megacor.com
Documents / Resources
|
MEGACOR FASTest GIARDIA
Strip
[pdf] Instruction Manual
FASTest GIARDIA Strip, GIARDIA Strip, Strip
---|---
References
- MEGACOR Diagnostik GmbH – Veterinary in vitro diagnostics
- Wholesale Vet Supplies & Products for Practices & Labs | Vet Supplies Online UK