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.
Chewy Tubes are available in four attractive colors: 1  Yellow Tube has a smaller stem size for chewing (3/8diameter) 2  Red Tube offers a slightly wider stem size (1/2diameter). 3  Green Tube (textured) offers a slightly wider stem size (1/2diameter). The little bumps on the surface provide tactile stimulation for the mouth.