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Products: Latex Agglutination
Cryptococcal Antigen Latex Agglutination System (CALAS®)
Cryptococcal Antigen Latex Agglutination System (CALAS<sup>®)</sup>

Qualitative & semi-quantitative latex test for detection of Cryptococcus neoformans.
This simple, sensitive, qualitative and semiquantitative latex test detects capsular polysaccharide antigens of Cryptococcus neoformans in serum and cerebrospinal fluid.

Product Details
Meridian Catalogue #: 140100
Kit Size 50-100 Determinations
Shelf Life from date of manufacture 18 Months
Storage Requirements 2°-8° C
Specimen Type Serum, Cerebrospinal Fluid
Assay Format Latex Agglutination
CE Marked Yes
Sensitivity 100%
Specificity 100%
Hazardous Harmful – Sodium Azide
Country of Origin USA
Available Within/Outside USA Yes
Suggested CPT Code 86403
Weight
Results Interpretation Negative: If a negative or a 1+ reaction is observed in the initial screening test against the Detection Latex, the specimen is reported as negative.
Positive: If a 2+ or greater reaction against the Detection Latex is seen in the initial screening test, the specimen is titrated with the Detection Latex and Control Latex reagents. The titer is reported as the highest dilution showing a 2+ or greater reaction.
Positive with nonspecific interference: If the specimen titer with the Detection Latex is at least 4-fold higher than the non-specific interference, (Control Latex) titer, the test should be reported as "Positive with non-specific interference," and the specimen titers against the Detection Latex and Control Latex should be stated.
Invalid test due to nonspecific interference: If the specimen titer against the Detection Latex is not at least 4-fold higher than that with the Control Latex, the test should be reported as "Invalid due to nonspecific interference."
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