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Test Code HTAGSSO Histoplasma Antigen, Quantitative, Serum/Plasma (310)

Additional Codes

Miravista Diagnostics Test Code: 310

Useful For

Aid in diagnosis of histoplasmosis
Monitor treatment to help determine when treatment can be discontinued
Aid in diagnosis of relapse

Synonyms/Keywords

Histoplasma Capsulatum QNT AG

Specimen Requirements

Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Minimum Volume
(allows for 1 repeat)
Serum Red Top Tube (RTT) Serum Separator Tube (SST) 0.8 mL
Plasma EDTA Lavender Top Tube (LTT)

Sodium-heparin OR Lithium-heparin Green Top Tube (GTT)

OR

Sodium citrate tube (BTT)

 0.8 mL

Collection/Processing Instructions

Serum:

  • Collect serum specimens in serum separator or red top tube. 
  • Allow blood to clot for 30 minutes, then centrifuge.
  • Pipette serum into a plastic screw cap vial. 

Plasma:

  • Collect plasma specimens in an EDTA, heparin or sodium citrate tube.
  • Centrifuge for 15 minutes and pipette plasma into a plastic screw cap vial.

Ship next day service for Monday - Friday delivery.

Specimen Stability Information

Specimen Type Temperature Time
Serum Ambient 14 days
Refrigerated 14 days
Frozen Indefinitely
Plasma Ambient 14 days
Refrigerated 14 days
Frozen Indefinitely

Rejection Criteria

If specimen is too viscous to pipette

Tissue, Sputum, Bronchial Brushings, Stool, FNA, Biopsy, Tracheal or Bone Marro Aspirate

Stored in Transport Media, Fixative or Isolator Tubes

Test Information

Positive samples may require confirmation which could extend TAT. 

Interferences

The result is not intended to be used as the sole means for the clinical diagnosis or patient management decisions.

Cross-reactions are seen with blastomycosis, paracoccidioidomycosis, penicilliosis, less frequently in coccidioidomycosis, rarely in aspergillosis and possibly sporotrichosis.

Sputolysin, sodium hydroxide and potassium hydroxide treatment degrade the analyte detected in the assay.

Interpretations

Positive: 0.20-20.00 ng/mL

 

Positive Above the Limit of Quantification: Results greater than 20.00 ng/mL fall outside the linear range of the assay. These results are positive, but not accurately quantifiable.

Reference Range Information

None Detected

Performing Laboratory Name

Miravista Diagnostics

Referral Laboratory Information

Address Telephone Website Link Marshfield Lab Account #

4444 Decatur Blvd, Suite 300
Indianapolis, IN 46241

 866-647-2847 www.miravistalabs.com MARSH

Performing Information

Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
MiraVista Diagnostics Monday through Friday 1 day

Quantitative Sandwich Enzyme Immunoassay (EIA)

Serum is pre-treated to improve sensitivity.  This adds 1 day to TAT.

CPT Codes

CPT Modifier
(if needed)		 Quantity Description Comments
87385        

Outreach CPT Codes

CPT Modifier
(if needed)		 Quantity Description Comments
87385