Appearance of Controls

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The page below is a sample from the LabCE course Quality Control. Access the complete course and earn ASCLS P.A.C.E.-approved continuing education credits by subscribing online.

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Appearance of Controls

  • Controls must resemble "as closely as possible" the human samples they emulate.
  • For hematology analyzers, controls need to have the same consistency and color as human blood.
  • Likewise, serum controls need to have similar amounts of constituents to those found in human serum.