Rickettsia rickettsii Antibody, IgG


Sunquest Code:RICAG  
Epic Code:LAB3716Epic Name:Rickettsia rickettsii Antibody, IgG
Synonyms:Rocky Mountain Spotted Fever Antibody, IgG
Methodology:Indirect immunofluorescence antibody
CPT Code:----------CPTCODES HERE----------
Turnaround Time:Specimens are sent to reference laboratory Mon-Sat; results are reported in 1-3 days.
Special Instructions:Parallel testing is preferred. Label samples as acute or convalescent. Convalescent specimens must be received within 30 days from receipt of the acute specimens.


Collection Instructions

Specimen:Blood
Optimal Volume:2 mL
Minimum\Peds Volume:0.8 mL
Container:Red or gold (gel) (Red (no gel))
Causes for Rejection:Severely lipemic, hemolyzed.


Processing and Shipping

Specimen Processing:Separate serum from cells ASAP. Centrifuge and aliquot 1 mL, 0.3 mL minimum. Store in refrigerator.
Shipping Instructions:Ship at refrigerated temperature.
Test Performed at or Referral Lab Lab Sendouts  (ARUP)
Referral Lab number:50369


Interpretive

Reference Range:

Less than 1:64

Negative: No significant level of Rickettsia rickettsii IgG antibody detected.

1:64-1:128

Low positive: Presence of Rickettsia rickettsii IgG antibody detected suggestive of current or past infection.

1:256 or greater

Positive: Presence of IgG antibody to Rickettsia rickettsii detected, suggestive of recent or current infection.

 

 

Use:The best evidence for infection is a significant change on two appropriately timed specimens where both tests are done in the same laboratory at the same time.


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