RICKETTSIA TYPHI IGG AND IGM Antibody (TYPHUS FEVER)

Specimen Required
Draw blood in a SST. Centrifuge, separate serum from cells within 2 hours of collection and send 1.0 mL serum (0.5 mL minimum) refrigerated in a screw-capped plastic vial.

Alternate Specimen
Serum: Red-top

Methodology
Indirect Fluorescent Antibody

Stability
Room Temperature: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year

Reference Range
IgG:   Less than 1:64:   Negative - No significant level of IgG antibody detected.  
   1:64-1:128:   Equivocal - Questionable presence of IgG antibody detected. Repeat testing in 10-14 days may be helpful.  
   1-256 or greater:   Positive - Presence of IgG antibody detected, suggestive of current or past infection.  
IgM:   Less than 1:64:   Negative - No significant level of IgM antibody detected.   
   1:64 or greater:   Positive - Presence of IgM antibody 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.  

Performed
Sunday-Saturday

Turnaround Time5-7 days
Test CodeTYPGM
CPT-4 Code (s)
86757 x 2
LOINC Codes
IgG   5324-9  
IgM   5325-6  

Warde
Medical
Laboratory