Altered color of plasma component - Unnecessary wastage of a precious resource

The present study was conducted to evaluate the etiology of altered color of plasma component of blood in transfusion practice.

The study was conducted at the blood center of a tertiary care teaching hospital in western India for a period of 6 months. After component separation, all the plasma units with altered color were segregated and samples were taken for further evaluation. Altered colored plasma units were divided into three - green discoloration, yellow discoloration, and lipemic plasma. Donors were called, their detailed history was taken, and necessary investigations were done accordingly.

Forty plasma units out of 20,658 (0.19%) donations showed discoloration. Out of which, 3 plasma units showed green discoloration, 9 plasma units showed yellow discoloration, and the remaining 28 plasma units were lipemic. Among three donors whose plasma showed green discoloration, one female donor had a history of oral contraceptive pill usage and had higher values of copper and ceruloplasmin. All donors with yellow plasma had a higher value of unconjugated bilirubin. All the donors with lipemic plasma gave a history of intake of fatty meal prior to donating blood and showed higher values of triglyceride, cholesterol, and very-low-density lipoprotein.

Plasma component with altered color restricts its issue to the patient and also for use in fractionation. In our study, many of the altered color plasma units were safe to transfuse, but the decision regarding transfusion was debatable on consultation with the treating doctor. Further studies with a large sample size are recommended for the use of these plasma components.