Rabies Vaccine Response End Point Titer

Test code

5789

CPT code(s)*

86382

Not offered in Quest Diagnostics Nichols Institute (IFD) – San Juan Capistrano. Please provide Service area information to confirm Test Code for the lab that services your account or to find available tests you can order.

In-home collection is not available in your area through Quest Mobile.

Clinical significance

Rabies Vaccine Response End Point Titer - ⁠⁠⁠⁠⁠⁠⁠What is the RFFIT??The acronym RFFIT stands for Rapid Fluorescent Focus Inhibition Test. The test measures the ability of antibodies that may be present in a sample to neutralize and block rabies virus from infecting the cells used in the test. These antibodies are called rabies virus neutralizing antibodies (RVNA). In the test, serum (the non-cellular portion of a blood sample) is first diluted fivefold (1 part serum in 4 parts diluent). Further (serial fivefold) dilutions are performed, each of which contain less and less of the sample. The serum dilutions are mixed with a standard amount of live rabies virus and incubated. If RVNA are present in the…

Test resources

None found for this test
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Details

Test details

Methodology

Rapid Fluorescent FOCI Inhibition Test (RFFIT)

Alternative name(s)

RFFIT

Specimen requirements
Patient preparation	None Specified
Preferred specimen(s)	1 mL serum
Minimum volume	1 mL
Collection instructions	Please note: Referral lab will not release results unless collection date is provided
Transport container	Transport tube
Transport temperature	Refrigerated (cold packs)
Specimen stability	Room temperature: Unacceptable Refrigerated: 10 days Frozen: 30 days
Reject criteria	Gross hemolysis • Grossly lipemic • Sample other than serum • Date drawn not provided

Reference range(s)

Reference Range(s)

Reportable range	0.1-15.0 IU/mL
Below detection limit	<0.1 IU/mL

LOINC® codes

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Service Area Information

Performing lab & setup schedule

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Service Area Information

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

*The CPT codes provided are based on AMA guidance and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

This material contains content from LOINC® (http://loinc.org). The LOINC Table, LOINC Table Core are copyright © 1995-2019, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license.

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