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Epic Test Code LAB779 Cryptococcal Antigen: Serum/CSF

Performing Location(s)

BMC

Synonyms

Cryptococcus latex test

Specimen Type

Serum or Spinal Fluid

Preferred Container

Serum – Red top tube

CSF- Collection tubes from Lumbar Puncture Tray

Blood Tube Draw Volume

Min 50% draw volume  

Minumum Volume to Submit for Testing

2 mL Serum/CSF

  • Multiple test can be performed from this volume. For question please contact the lab at 547-3975.  

Storage Requirements

  • Serum: Refrigerate specimen. If delivery to lab will be delayed, separate and freeze serum.
  • CSF: Deliver to laboratory as soon as possible; DO NOT REFRIGERATE.

 

Transportation Needs

Deliver specimen to laboratory within 1 hour of collection if unspun. If not possible see "storage Requirements". 

Causes for Rejection

Mislabeled or unlabeled specimen

Less than 50% draw for Vacutainer tubes
 

Reference Values

Population Units Reference Range
All Populations none Negative
Note: 
A Positive Cryptococcal Antigen is considered a Critical Value and will be called to the ordering provider within 30 minutes of verification.

 

Includes

Titer if positive

Available STAT

Yes

Days of Analysis

All

Reflex Testing

When a Cryptococcal Antigen screen is positive, a titer is performed and billed.

 

Reflex Testing Data

Limitations

Manufacturer states a sensitivity and specificity of 100% compared to another latex agglutination test

Additional Information

Contraindications:

Hydralazine and procainamide may induce ANA

Methodology

Latex agglutination

CPT Code

86403 (also see Reflex testing data)

Last Updated

18-Mar-22 BHD