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Test Code
H6MIF
Test Name
Herpesvirus 6 Antibody, IgM by IFA
CPT Codes
86790
Expected Turnaround Time
1 - 6 days
Clinical Utility

The clinical utility of serological testing for HHV-6 is largely limited to diagnosing infection in immunocompromised individuals and for identifying past infection/exposure to roseola infantum. IgG seroconversion or detection of HHV-6 IgM antibody may indicate a recent primary infection, reactivation or reinfection. Please note that nucleic acid amplification (PCR) is the recommended testing method for diagnosis of active HHV-6 infection.
Specimen and Container Info

Specimen Type: Serum

Collection Container: Gold Top, Serum Separator

Alternate Collection Container: Red Top, Plain

Desired Specimen Volume: 0.5 mL
Collection Instructions
  1. Collect a gold top, serum separator tube via venipuncture
Processing and Submission Instructions
  1. Separate serum from cells.
  2. Transfer 1 mL of serum to a clear aliquot tube (screw cap).
Transport Instructions

Transport to the laboratory refrigerated. 
Stability Requirements

Room Temperature

14 days

Refrigerated

14 days

Frozen

14 days

Freeze/Thaw Cycles

Stable x3
Methodology
Immunofluorescence
Reference Intervals

See patient report.
Alternate Names
  • HHV-6 IgM Antibody
Reference Lab
Labcorp Of America Holdings
Testing Schedule
Routine, 2 times per week
The American Medical Association (AMA) Current Procedural Terminology (CPT) codes published by HNL Lab Medicine are guidelines and are intended for informational purposes only. CPT coding is the exclusive responsibility of the billing entity. View the Terms.
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