Para 4®

Para 4 is a hematology control for laboratories that perform a limited number of hematology tests utilizing manual or semi-manual methods. It is available in low, normal and high levels.

Para 4 hematology control

Para 4 is an assayed, whole blood hematology control for evaluating the accuracy and precision of automated, semi-automated and manual procedures that measure blood cell parameters. Designed to resemble the appearance of patient samples, Para 4 is available in three clinically significant levels (low, normal and high) and has a long shelf life which reduces the number of shipments, associated costs and time spent performing lot-to-lot correlation. It is available in glass vials or in squeeze dropper vials.

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Para 4 hematology control


  • Whole blood control resembles patient sample
  • Available in three clinically significant levels
  • Packaged in plastic squeeze dropper vials and glass vials
  • 14-day open-vial stability; 110-day closed-vial stability


  • Established assay ranges provide less room for error
  • Long shelf life reduces the number of shipments and associated costs
  • Fewer lot-to-lot correlations save time and resources
  • Access to STATS®, our free interlaboratory quality control program with peer group data comparison and online submission
DescriptionCatalog Number
3 x 1.5mL (Low, Normal, High) Plastic215103
6 x 1.5 mL (6 Low) Plastic215106
6 x 1.5 mL (6 Normal) Plastic215107
6 x 1.5 mL (6 High) Plastic215108
6 x 1.5mL (2 Low, 2 Normal, 2 High) Plastic215110
8 x 1.5mL (4 Normal, 4 High) Plastic215115
12 x 1.5 mL (4 Low, 4 Normal, 4 High) Plastic215112
3 x 1.5mL (1 Low, 1 Normal, 1 High) Glass215403
6 x 1.5 mL (6 Low) Glass215426
6 x 1.5 mL (6 Normal) Glass215416
6 x 1.5 mL (6 High) Glass215436
6 x 1.5mL (2 Low, 2 Normal, 2 High) Glass215406
12 x 1.5 mL (4 Low, 4 Normal, 4 High) Glass215412
18 x 1.5 mL (6 Low, 6 Normal, 6 High) Glass215418

View the lot release schedule

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Our whole blood controls and calibrators give you confidence in the accuracy and sensitivity of your hematology analyzers without having to complete a tedious whole blood calibration procedure.

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