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Labcorp Oklahoma, Inc.
Test Directory


Index:

Cryptococcus Antigen Screen - Serum

Order Name CRYPTO AG
Test Number: 6002175
Revision Date 02/21/2020
Test Name Methodology LOINC Code
Cryptococcus Antigen Screen - Serum
Enzyme Immunoassay 31790-9 
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 4 mL (1) Serum Clot Activator (Red Top, No-Gel) Refrigerated
Alternate 1 4 mL (1) Serum Clot Activator SST (Gold Top) Refrigerated
Instructions Cleanse venipuncture site and avoid hemolyzed specimens.
Allow specimen to clot and aliquot 4mL(1mL) of serum to a standard transport tube.
Store serum at 2-8 ? for up to 72 hours. Serum may be poured off and frozen at <-20 ? for up to 7 days prior to testing.
Specimens should remain at 2-8 or -20 during transport.
Unacceptable specimens: Hemolyzed specimens, specimens contaminated with gel, specimens frozen then thawed and refrozen, specimens stored at the incorrect temperature, or specimens contaminated.
GENERAL INFORMATION
Testing Schedule Mon - Fri 
Expected TAT 1 Day  
Clinical Use Detects presence of Cryptococcus antigen in peripheral blood 
CPT Code(s) 87899 If the screen is positive, then the following test will be performed:
Order Code [6002300] Cryptococcus Antigen Titer
Result Code [6002300] Cryptococcus Ag Titer
Cpt Code 86406
Lab Section Microbiology