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.
Should be gently inverted in the vacuum tube 8 times for comlete mixing of SPS with the blood. It should be noted that tubes containing ACD (acid citrate dextrose) also use the yellow color code. These tubes are mainly used to preserve blood for donation. Also, ACD is used for specialty blood banking, such as human leukocyte antigen (HLA) typing and DNA testing. The yellow-topped tubes need to be gently inverted 8 times immediately after blood collection for additive/blood mixing.