Diagnostic Test Directory

Microbiology Laboratory

Cryptococcal Antigen

  • LIS Mnemonic: CAG

    Collect

    Blood collected in a red- or gold-topped tube OR CSF sent in a sterile,leak-proof container.

    Volume Required

    1 tube of blood; 1-2 mL CSF

    Minimum Required

    1 tube of blood; 0.5 mL CSF

    Transport

    Send to the lab immediately at room temperature. For CSF, if transport is delayed greater than an hour, refrigerate or freeze specimen and send on ice.

    Unacceptable conditions

    Grossly hemolyzed specimens will not be accepted.

Days Performed

Daily

Reported

Same day

CPT

87072

Methodology

Latex agglutination