Test Overview
Test Methodology

Enzyme-Linked Immunoassay Dot (Immunodot)

Test Usage

Aid in the diagnosis of leptospirosis.

Reference Range *

Negative

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Limitations

The temporal IgM immune response can vary among patients. Therefore, a single negative result by this assay should not be used to exclude diagnosis, especially in patients with symptoms suggestive of leptospirosis who have an appropriate exposure history. This test does not distinguish between acute or past infection. Clinical correlation is required. Patients may remain seropositive for months to possibly years following resolution of disease; therefore, this test cannot be used to establish cure or response to therapy.

Test Details
Days Set Up
Monday, Wednesday, Friday
Analytic Time

2 - 5 days

Soft Order Code
LEPDT
MiChart Code
Leptospira Antibody
Synonyms
  • LEPTO
  • Leptospira Ab, Serum
Laboratory
Sendout
Reference Laboratory
Mayo LEPDT
Section
Special Testing
Specimen Requirements
Collection Instructions

Collect specimen in an SST (preferred) or red top tube. Centrifuge, aliquot of serum into a plastic vial and refrigerate. Acute and convalescent specimens obtained to determine seroconversion should be collected 2 or more weeks apart.

Rejection Criteria
Contaminated, heat-inactivated, hemolyzed, or severely lipemic specimens are not acceptable.
Yellow Top Tube
Normal Volume
0.3 mL serum
Minimum Volume
0.1 mL serum
Additional Information

Test is sent to Mayo Medical Laboratories.

Billing
CPT Code
86720
Fee Code
32151
LOINC
23202-5
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