Parvovirus B19 IgG/IgM
Label Mnemonic: PARVO
Epic Lab Code: LAB3806
Downtime Form: A-1a Miscellaneous Request
Commercial Mail-out Laboratory
5231 RCP
356-8593
Specimen(s):
Serum
Specimen Instructions:
Mark specimens plainly as "acute" or "convalescent". Parallel testing is preferred and convalescent samples must be received within 30 days from receipt of acute samples.
Collection Medium:
Red top tube 5 mL (Clot Activator)
Minimum:
Preferred Minimum: 0.5 mL serum
Absolute Minimum: 0.3 mL serum
Rejection Criteria:
Contaminated, heat-inactivated, hemolyzed, hyperlipemic, or icteric serum.
Delivery Instructions:
Deliver to laboratory within 1 hour of collection.
Turn Around Time:
1-3 days upon receipt at reference laboratory
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.
Methodology:
Semi-Quantitative Enzyme-Linked Immunosorbent Assay
CPT Code:
86747(x2)
 
See also:
Parvovirus B19, PCR, Human, CSF, Amniotic Fluid, Synovial Fluid, Bone Marrow and Fresh Tissue (Snap Frozen)