Clinics and Departments

Laboratory Services

Lab Dept:

Microbiolgy/Virology

Test Name:

LYME DISEASE PCR, BLOOD

General Information

Lab Order Codes:

LYPCB

Synonyms:

Borrelia burgdorferi PCR; Lyme Disease PCR; Lyme Disease by Polymerase Chain Reaction

CPT Codes:

87476 – Borrelia burgdorferi, amplified probe technique

Test Includes:

A positive or negative result indicating the presence or absence of Borrelia burgdorferi DNA in the specimen submitted.

Logistics

Test Indications:

Confirmation of active Lyme Disease. Monitoring Lyme Disease treatment. Diagnosing and monitoring Lyme arthritis.

PCR testing should be limited to patients with at least an equivocal or positive serologic test for antibody to Borrelia burgdorferi.

Lab Testing Sections:

Microbiology/Virology – Sendouts

Referred to:

Mayo Medical Laboratories (MML Test: 87973/PBORB)

Phone Numbers:

MIN Lab: 612-813-6280

STP Lab: 651-220-6550

Test Availability:

Daily, 24 hours

Turnaround Time:

1 – 4 days; performed Monday-Saturday (June through November) and Monday-Friday (December through May)

Special Instructions:

N/A

Specimen

Specimen Type:

Whole blood

Container:

Lavender (EDTA) top

Draw Volume:

1 mL (Minimum: 0.3 mL) whole blood

Processed Volume:

Same as Draw Volume

Collection:

Routine venipuncture

Special Processing:

Lab Staff: Do Not centrifuge. Submit specimen in original collection container. Store at ship at refrigerated temperatures.

Patient Preparation:

None

Sample Rejection:

Mislabeled or unlabeled specimens; anticoagulants other than EDTA

Interpretive

Reference Range:

Negative (reported as positive or negative)

Critical Values:

N/A

Limitations:

A negative result does not rule out Lyme disease, since inhibitory substances may be present in the specimen and the assay has limited diagnostic sensitivity when testing certain types of specimens. If clinical features of illness are highly indicative of Lyme neuroborreliosis, serologic testing on CSF is warranted.

Patients with active infection due to Borrelia afzelii, or Borrelia garinii may have positive results from this PCR test, which can distinguish Borrelia burgdorferi infection from those of Borrelia afzelii and Borrelia garinii. However, the later 2 infections are indistinguishable from one another by this PCR assay. Specimens with detectable DNA from either of these two sprirochetes in this assay will be reported as “positive” for Borrelia afzelii/Borrelia garini”.

PCR test results should be used as an aid in diagnosis and not considered diagnostic by themselves. These results should be correlated with serologic and epidemiologic data and clinical presentation of the patient.

Coinfection with Erhlichia chaffeensis/Anaplasma phagocytophilum and/or Babesia microti have been reported in the United States.

Methodology:

Polymerase Chain Reaction (PCR)/DNA Probe Hybridization
(PCR is utilized pursuant to a license agreement with Roche Molecular Systems, Inc.)

References:

Mayo Medical Laboratories Web Page June 2013



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