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Published on January 31, 2018

Cryptococcal Antigen 

SIM

40020 

CPT

86641 

Synonyms

Cryptococcus Latex Antigen test; Cryptococcal Ag; Crypto 

Specimen Type

Serum 

Container

4.0 ml Gold-top serum separator

Collection Instructions

None

Volume

2 ml Serum
Min: 0.5 ml

Additional Information

none

Patient Preparation

none

Specimen Processing Instructions

Serum:  Allow to clot.  Centrifuge at 3380 rpm’s (±100) for a minimum of 10 minutes

Centrifuge within 2 hours of collection.

Transport Requirements

Refrigerated

Specimen Stability

Refrigerated: 1 week 

Rejection Criteria

If not centrifuged within 2 hours of collection.

Reference Range

Negative

Critical Value

none 

Test Includes

Cryptococcal Antigen result by Latex agglutination;  Positive results will have a titer performed and resulted. 

Methodology

Qualitative or semi-quantitative Latex Agglutination 

Testing Frequency

Daily, Monday - Sunday 

 

Reviewed By

Sandy Hammett 

Reviewed Date

1-31-18

Supplemental

  

Reviewed by Sandy Hammett on January 31, 2018

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