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Rocky mountain spotted fever, IgG-13507

Test info

Test name:

Rocky mountain spotted fever, IgG

Test number:

13507

Excellian order number:

LAB13507

Abbreviation:

RMSFG

Alternate names:

Rickettsia rickettsii
RMSF, IgG, quantitative

Tests included:

Possible reflex to RMSF, IgG, IFA

Useful for:

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

Specimen

Specimen type:

Serum

Collection container:

Gold serum separator (SST) tube

Volume:

0.4 mL

Minimum volume:

0.2 mL

Collection instructions:

Immediately following collection, thoroughly mix sample by gently inverting 5 times

Processing instructions:

Allow sample to clot for a minimum of 30 minutes
Spin within two (2) hours of sample collection

Transport container:

Gold serum separator (SST) tube

Alternate collection container:

Red serum vial/tube - 5 mL

Alternate processing instructions:

Allow sample to clot
Spin
Transfer serum to a Transfer vial/tube with cap - 12mL (LabCorp), labelled as serum, within two (2) hours of sample collection

Alternate transport container:

Transfer vial/tube with cap - 12mL (LabCorp)

Transport and stability:

Ambient (preferred) - 14 days

Refrigerated - 14 days

Frozen - 14 days

Freeze/thaw cycles - stable x3

Reason for rejection:

Lipemia
Hemolysis
Bacterial contamination

Performance

Performing lab:

LabCorp Burlington (016592): R-LC

Days set up:

May - Oct: Mo - Fr
Nov - Apr: Mo, We, Fr

TAT:

5 days

Method:

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

Clinical and Interpretive info

Reference ranges:

Negative: <1:64

Positive: 1:64

Recent/active: >1:64

Billing

CPT codes:

86757

LOINC code:

Result 41476-3

Tracking

Date created:

04/11/2019

Revised date:

09/21/2023

Review date:

01/10/2024