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Laboratory Test Directory

Reticulocyte Hemoglobin Equivalent


Name Method Department Units
Retic Count with Retic Hgb Eq Automated cell counter
Core Lab, Hematology pg

Battery Members

Reticulocyte Count, Reticulocyte Hemoglobin Equivalent

Specimen Requirements

Whole blood

Container Type Container Size Specimen Volume

Purple tube (EDTA)

3 mL 3 mL

Purple tube (EDTA)

Micro sample tube 0.5 mL

Room temperature - 8 hour(s)
Refrigerated - 48 hour(s)

Specimen Preparation

  • Do not centrifuge
  • Mix EDTA tube by gentle inversion immediately after collection

Reasons for Rejection

  • Clotted specimen
  • Not received at proper temperature
  • Not received within specified time frame
  • Wrong collection tube
  • Over or under filled tube
  • Centrifuged specimen


Test is reported as part of Reticulocyte count battery. Samples for reticulocyte count with RETHE measurement should be sent to Core Laboratory (Main Campus) for all hematology testing unless CBC or other parameter is ordered STAT.

CPT Code

  • 85046