016592: Rocky Mountain Spotted Fever (RMSF), IgG | LabCorp
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Rocky Mountain Spotted Fever (RMSF), IgG

CPT: 86757
Updated on 09/22/2020
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Synonyms

  • Rickettsia rickettsii
  • RMSF, IgG, Quantitative

Test Includes

Rocky Mountain spotted fever screen by EIA with titers by IFA (reflex at no charge)

Rocky Mountain spotted fever screen by EIA with titers by IFA (reflex at no charge)


Expected Turnaround Time

1 - 5 days


Related Documents


Specimen Requirements


Specimen

Serum


Volume

0.4 mL


Minimum Volume

0.2 mL


Container

Red-top tube or gel-barrier tube


Storage Instructions

Room temperature


Stability Requirements

Temperature

Period

Room temperature

14 days

Refrigerated

14 days

Frozen

14 days

Freeze/thaw cycles

Stable x3


Causes for Rejection

Lipemia; hemolysis; bacterial contamination


Test Details


Use

Establish the diagnosis of infection due to Rickettsia in the spotted fever group


Limitations

The antigen used in the test is group specific and not species specific. Interference has been reported with this assay in patients suffering from Ehrlichia infections and Lyme disease.


Methodology

Enzyme immunoassay (EIA) with indirect fluorescent antibody (IFA) titer on positives


Reference Interval

Negative

If result is positive or equivocal, IFA titers will be performed at no additional charge. Reference interval for titer reflex:

• Negative: <1:64

• Positive: 1:64

• Recent/active: >1:64


LOINC® Map

Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
016592 Rocky Mtn Spotted Fev, IgG, Qn 41476-3 016171 RMSF, IgG, EIA 41476-3
Reflex Table for RMSF, IgG, EIA
Order Code Order Name Result Code Result Name UofM Result LOINC
Reflex 1 016174 RMSF, IgG, IFA 016174 RMSF, IgG, IFA 5307-4

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