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Beaumont Laboratory

Tropheryma whipplei, PCR, Blood

Whipples Disease Associated Bacillus (Tropheryma whipplei) DNA Detection - PCR, MAYO: WHIPB, EPIC: LAB6795, SOFT: XWHPB

Specimen Collection Criteria

Collect: One Lavender-top EDTA tube.

Send specimen for processing immediately after collection. 

Physician Office/Drawsite Specimen Preparation

Do not centrifuge specimen. Do not freeze. Maintain whole blood specimen refrigerated (2-8°C or 36-46°F) in original collection tube prior to transport.

Preparation for Courier Transport

Transport: 1.0 mL whole blood in original collection tube, refrigerated (2-8°C or 36-46°F). (Min: 0.5 mL)

Rejection Criteria

  • Specimens not collected and processed as indicated.


Specimen Stability for Testing:

Room Temperature (20-26°C or 68-78.8°F): 7 days
Refrigerated (2-8°C or 36-46°F): 7 days
Frozen (-20°C/-4°F or below): 7 days

Specimen Storage in Department Prior to Disposal:

Specimen retention time is determined by the policy of the reference laboratory. Contact the Sendout Laboratory with any questions.


Sent to Mayo Medical Laboratories, Rochester, MN.


Monday, Wednesday, Friday
Results available in 3-8 days.

Reference Range

Negative (reported as negative for Whipple's disease associated bacillus DNA).

Test Methodology

Rapid Polymerase Chain Reaction (PCR).


By report.

Clinical Utility

This assay is useful for the diagnosis of Whipple's disease associated bacillus (Tropheryma whippelii) infection.

CPT Code


Test Codes


Last Updated


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This directory currently reflects information only for specimens collected and/or processed at the Farmington Hills, Grosse Pointe, Royal Oak, and Troy campuses.