Unit 5: Hemoglobin Testing 26 Original: October 1999 Revision: September 2010 5 â 5 Recording Hemoglobin Values Objectives After completing this section, you will be able to: Correctly record hemoglobin values. Correctly record reasons why a hemoglobin value was not taken.
Group 7 â EDTA and ESR tubes. Black top ESR-Vacuum top with 3.2% sodium citrate: used for Westergren sedimentation rate. Group 9 â Yellow top with ACD Solution A. Yellow top tube with ACD (acid citrate dextrose) Solution A: used for whole blood determinations including flow cytometry and tissue typing assays.
Be aware, however, that certain tubes are made for research purposes only. The order of draw in this case is according to manufacturerâs instruction. When you switch from research to actual venipuncture, it is important that you are able to differentiate one task from another. Color codes may also differ in certain laboratories and you should always verify before you draw any blood.