Specimen

Serum

Collection Medium:

Alternate
Collection Media:

Lavender top tube (EDTA), Green top tube (Na Heparin), Light Green top 
tube (Lithium Heparin)

Minimum:

Preferred adult minimum: 0.5 mL serum
Absolute adult minimum: 0.2 mL serum
Pediatric minimum: 0.1 mL serum

Rejection Criteria:

Lipemic or icteric specimens.

Analytic Time:

1 week

Reference Range:

Parvovirus B19 IgG Index
  IV = Index Value
0.89 IV or less:  Negative -  No significant level of detectable
                              Parvovirus B19 IgG antibody
0.90 - 1.10 IV:  Equivocal - Repeat testing in 10-14 days may be
                             helpful
1.11 IV or greater:  Positive -  IgG antibody to Parvovirus B19
                                 detected, which may indicate a
                                 current or past infection.

Parvovirus B19 IgM Index
   IV = Index Value
0.89 IV or less:  Negative -  No significant level of detectable
                              Parvovirus B19 IgM antibody
0.90 - 1.10 IV:  Equivocal - Repeat testing in 10-14 days may be
                             helpful
1.11 IV or greater:  Positive -  IgM antibody to Parvovirus B19
                                 detected, which may indicate a
                                 current or recent infection.
                                 However, low levels of IgM antibodies
                                 may occasionally persist for more
                                 than 12 months post-infection.

Comments:

Mark specimens as "acute" or "convalescent" specimen.  Parallel testing 
is preferred and convalescent samples must be received within 30 days 
from receipt of acute samples.

Methodology:

Enzyme Linked Immunosorbent Assay

CPT Code:

86747(x2)

See also:
Parvovirus, PCR, Human, Serum, Plasma, Amniotic or Synovial Fluid