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St. John Health System
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Index:

Ehrlichia Species by PCR

Order Name Ehrlichia PCR
Test Number: 3622105
Revision Date 04/22/2026
Test Name Methodology LOINC Code
Ehrlichia Species by PCR
Polymerase Chain Reaction 48866-8 
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 1 mL (.2 mL) EDTA Whole Blood EDTA (Lavender Top) Refrigerated
Instructions Stability Requirements: Room temperature 7 days, Refrigerated 7 days, Frozen Unstable
Causes for Rejection: Quantity not sufficient for analysis; gross specimen contamination; specimen too old; leaking or broken tube
GENERAL INFORMATION
Expected TAT 3-4 Days  
Clinical Use This test is intended to be used as an aid in the diagnosis of human monocytic ehrlichiosis (HME). This assay will detect but not differentiate multiple Ehrlichia species including E. chaffeensis, E. ewingii and E. muris. 
CPT Code(s) 87798
Service Provided By Labcorp Oklahoma, Inc.
Lab Section Reference Lab