Rickettsia typhi (murine typhus) Antibodies, IgG

TEST: 016188
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CPT: 86757
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Expected Turnaround Time

1 - 6 days

Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.

Related Documents

Specimen Requirements

Specimen

Serum

Volume

1 mL

Minimum Volume

0.5 mL

Container

Red-top tube or gel-barrier tube

Storage Instructions

Refrigerate for five days; freeze serum for long-term storage.

Causes for Rejection

Lipemic, hemolyzed, or bacterially-contaminated samples

Test Details

Use

Detect antibodies following infection with murine typhus

Methodology

Indirect fluorescent antibody (IFA)

Reference Interval

• Negative: <1:64

• Present or past: 1:64

• Recent/active: >1:64

A fourfold increase in antibody titer between acute and convalescent specimens is consistent with recent infection. A single titer ≥1:128 can be consistent with recent infection. Titers of 1:16−1:64 can be indicative of recent or past infection.

LOINC® Map

Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
016188 Murine Typhus Antibodies, IgG 5324-9 016190 Murine Typhus Antibodies, IgG 5324-9

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The LOINC® codes are copyright © 1994-2021, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. Permission is granted in perpetuity, without payment of license fees or royalties, to use, copy, or distribute the LOINC® codes for any commercial or non-commercial purpose, subject to the terms under the license agreement found at https://loinc.org/license/. Additional information regarding LOINC® codes can be found at LOINC.org, including the LOINC Manual, which can be downloaded at LOINC.org/downloads/files/LOINCManual.pdf