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Karius Test

Important Note

This test requires advance approval with Lab Med faculty on-call, and consultation with Infectious Disease.


It can only be sent out M-F before 1400. 

Clinical System Name

Miscellaneous Test

Sample Requirements

Specimen: Whole Blood

Container(s): Lavender/EDTA

Preferred Vol: 3.0 mL 

Minimum Vol: 1.4 mL

Processing Instructions

Reject due to: Unfrozen specimen received at Karius more than 96 hours after draw; specimen with incomplete or improper separations of plasma; specimen collected in expired tube; specimen with fewer than 2 patient identifiers on the tube.

Spin: Y

Aliquot: Y

Temp: -20 C

Storage Location: CPA -20 freezer, Send Outs rack.


Off-site Collection: Transport sample frozen.


Specimen Type Temperature Time
EDTA Plasma Room Temp

96 h

  Refrigerated Unacceptable
  Frozen (-20 C)

6 m



STAT Performed TAT
N Daily 3 - 4 d


Performing Laboratory

Karius Laboratory

Specimen Receiving

975 Island Dr.

Suite 101
Redwood City, CA 94065


Phone Number: (866) 452-7487


Department: Send Outs

Phone Number: (206) 987-2563

CPT Codes



Method: Microbial cell-free DNA sequencing

Analytical Volume: 0.7 mL EDTA Plasma


Send Out Instructions

Reference Test Name: Karius Test
Reference Test Number: N/A

Send out Monday through Friday via FedEx Priority Overnight.