Sample Requirements


We are able to perform testing on:
  • Whole blood (in EDTA)
  • Chorionic villi and cultured chorionic villus cells (submitted with maternal blood for maternal cell contamination studies and a backup culture maintained elsewhere))
  • Cultured amniocytes (submitted with maternal blood for maternal cell contamination studies and a backup culture maintained elsewhere)
  • Cord blood (submitted with maternal blood for maternal cell contamination studies)
  • Frozen, unfixed tissue
  • DNA extracted by a CLIA certified laboratory ONLY if there is no other sample available or obtaining another sample would present extreme hardship for the patient. Please call the laboratory to discuss.

 

Please Note The Joint Commission National Patient Safety Goals for 2008 require 2 patient identifiers that can be matched between the sample and the paperwork accompanying the sample.  The patient name and date of birth are preferred, but an internal identifier like specimen ID or medical record number may also be used.  We are not able to test samples that are not properly identified.  

Minimum Sample Requirements and Sample Handling Instructions

Blood samples

Pediatric Minimum:  3ml
Adult  Minimum:  6ml
Cord Blood:  3 ml  (maternal blood sample required)

EDTA Tubes; Refrigerate and ship with cold pack by overnight courier; Sample can be stored at room temperature if it will arrive in the lab less than 36 hours after blood draw.  Blood samples are stable at 4 degrees Celsius for longer than a week. 


Prenatal Samples

CVS (direct Villi)

 

10 mg, cleaned

Ship frozen cell pellet on dry ice by overnight courier; Can be shipped at room temperature if the sample will arrive in the lab less than 36 hours after procedure.

We REQUIRE a sample of maternal blood to rule out maternal cell contamination (10cc in EDTA).  A backup culture should be maintained by the referring institution or lab until testing is complete.

 

Cultured Amniocytes or Chorionic Villi 2 T25 flasks, 80-90% confluent at time of shipping

Ship in flask filled with culture media, room temperature by overnight courier

We REQUIRE a sample of maternal blood to rule out maternal cell contamination (10cc in EDTA).  A backup culture should be maintained by the referring institution or lab until testing is complete.


Other Samples

Cultured Fibroblasts 2 confluent T75 flasks

Ship flasks filled with culture media, at room temperature by overnight courier

 

Frozen Tissue 3-5g; preferred tissues are muscle, lung and heart.  
        we prefer not to test liver samples

Ship on dry ice by overnight courier

This sample type is not available for some tests.  Please call the lab prior to shipping.

 

DNA DNA sample requirements depend on the number of tests ordered and the size of the genes sequenced.  The minimum concentration is 1ug/ul. 

Ship frozen DNA on dry ice by overnight courier

We always prefer to have a direct sample not extracted DNA, as all of our tests are optimized for our extraction methods.   


Unacceptable Samples include: blood tubes other than EDTA (lavender or purple tops), fixed tissue, parafin blocks, or cheek swabs.

    


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