New Test
Effective Date
02/03/2026
Included in Report
New Test
Test Details
Mnemonic
APECT
Ordering Code
3401122
CPT-4 Codes(s)
86666 x 4, plus 86317 for each titer, at additional cost
Turnaround Time
3 - 5 days
Performed
Tuesday - Saturday
Legacy Code
APECT
Example Report
Specimen Information
Collect
Serum separator tube (SST)
Specimen Preparation
Centrifuge, separate serum from cells and send 1.0 mL serum in a screw capped plastic vial.
Alternate Specimen
Serum: Red top
Minimum Volume
0.4 mL
Transport Temperature
Refrigerated
Stability
Room temperature: 7 days
Refrigerated: 14 days
Frozen: 30 days
Refrigerated: 14 days
Frozen: 30 days
Methodology
Immunofluorescence assay
Reference Range
A. phagocytophilum Ab (IgG), Screen Not Detected
A. phagocytophilum Ab (IgM), Screen Not Detected
E. chaffeensis Ab (IgG), Screen Not Detected
E. chaffeensis Ab (IgM), Screen Not Detected
A. phagocytophilum Ab (IgG), Titer <1:64
A. phagocytophilum Ab (IgM), Titer <1:20
E. chaffeensis Ab (IgG), Titer <1:64
E. chaffeensis Ab (IgM), Titer <1:20
A. phagocytophilum Ab (IgM), Screen Not Detected
E. chaffeensis Ab (IgG), Screen Not Detected
E. chaffeensis Ab (IgM), Screen Not Detected
A. phagocytophilum Ab (IgG), Titer <1:64
A. phagocytophilum Ab (IgM), Titer <1:20
E. chaffeensis Ab (IgG), Titer <1:64
E. chaffeensis Ab (IgM), Titer <1:20
Performing Laboratory
Quest
New York DOH Approval Status
Yes