Collection Key Points

test tube picGood quality DATA begins with good quality samples

Sample Collection

  • Select appropriate collection tube and mix immediately
  • Let serum separation tube clot upright for 30 minutes


  • Chemistry: Room temperature
  • PK: Refrigerated +2°C to +8°C
  • At 1500 to 2000 x g for 15 minutes
  • Do not centrifuge whole blood or urine samples


  • Label hematology slides with the accession number
  • Remove the DIFF-SAFE® from Hematology collection tube
  • Pipette serum / plasma into their respective pre-labeled aliquots
  • Pay particular attention to the different time points printed on each collection tube and aliquot


  • Store samples at the appropriate temperature
    – Ambient
    – Frozen at -20°C


  • Ship samples as directed
    – Day of collection
    – Weekly