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Pleximmune Assay

Important Note

DRAW M - F 6 AM to 2 PM. Must be shipped same day - cannot be collected on weekends, holidays, or within 2 days of a holiday (2 day processing).

Clinical System Name

Pleximmune Assay


The Pleximmune test predicts the risk of acute cellular rejection after liver or intestine transplantation in children. Cellular rejection, the leading type of rejection after organ transplantation, is mediated by cell-mediated toxicity toward transplanted organs.

Sample Requirements

Specimen: Whole Blood

Container(s): Dark Green/Sodium Heparin

Preferred Vol: 5 mL

Minimum Vol: 3 mL


Note: DRAW M - F 6 AM to 2 PM. Must be shipped same day, DO NOT DRAW ON HOLIDAYS (EVEN WITHIN 2 DAYS OF A HOLIDAY) OR WEEKENDS. Capillary collections unacceptable. Lithium heparin is unacceptable.


Processing Instructions

Reject due to: Refrigeration or freezing, sample stability, capillary or Lt Green/Lithium Heparin collection, removal of vacutainer cap.

Spin: N

Aliquot: N

Temp: RT

Storage location: Do not spin. Place whole blood in CPA RT Send Outs rack.


Off-site collection: Can only be collected at Seattle Children's Main Campus.


Note: Specimen must remain sterile. Do not remove vacutainer cap to fill. Specimen can not be shared. Test requires a separate tube.


Specimen Type Temperature Time
  Room temp 30 h
  Refrigerated N
  Frozen N



STAT Performed TAT


Performing Laboratory


4424 Penn Avenue, Suite 202

Pittsburgh, PA 15224


Phone: 1 (855) 753-9474


Department: Send Outs

Phone Number: (206) 987-2563

Reference Range

Interpretive report provided.

CPT Codes


88240 x2

88241 x2





88185 x5


Send Out Instructions

Reference Test Name Pleximmune Assay
Reference Test Number  
Instructions MUST reach Plexision within 30 hours of blood draw. Plexision accepts Saturday delivery. Ship ambient Priority via FedEx to Plexision Reference Lab.


Pleximmune Requisition