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Laboratory Test Directory

Arbovirus Antibody IgG Titer, (Convalescent)


Name Method Department Units
Arbovirus Ab,Convalescent Titer Immunofluorescent assay
CMI, Immunology Titer

Specimen Requirements

Whole blood

Container Type Container Size Specimen Volume

Red tube, (no anticoagulant), No Gel

3 mL 3 mL

Red Tube (no anticoagulant) with Gel

3 mL 3 mL

Room temperature - 24 hour(s)
Refrigerated - 48 hour(s)

Specimen Preparation

  • Transport to laboratory as soon as possible
  • If delay in transport greater than 1 hour, refrigerate

Reasons for Rejection

  • Wrong collection tube
  • Not received at proper temperature
  • Not received within specified time frame


Label as convalescent serum. Contact Laboratory Services (800-934-6575) in cases of encephalitis for more rapid turnaround time. Blood should be collected 2 weeks after acute to detect 4 fold increase in IgG titer.This test detects IgG antibody to St. Louis, Western Equine, Eastern Equine and Californa Group (Lacrosse) arboviruses. Patient may be drawn and sample received in lab according to the specimen stability listed, at any time. Laboratory will process and store sample until next scheduled testing date.

CPT Code

  • 86651
  • 86652
  • 86653
  • 86654