Analysis on residual blood in the pipeline consumables of FENWAL blood cell separator / 医学研究生学报

ABSTRACT

Objective After the collection of blood donation by plateletpheresis, the residual blood in the pipeline consumables cannot be completely returned to blood donors, resulting in waste. The purpose of this article was to explore a safe and simple operation method in order to reduce the blood loss of donors as much as possible.Methods We randomly selected 10 plasmapheresis donors and adopted single-needle procedure of FENWAL blood cell separator to collect platelets in accordance with the blood cell separator operation manual. The air trap was inverted when the machine was performing suction, the last step of return procedure. The salt water pipeline and the blood return pipeline were disconnected their respective pipeline clip after the return procedure ended and the blood were returned by gravity. Cell counts were performed on the remaining blood in blood return pipeline, air trap and pipeline consumables respectively.Results In pipeline consumables, there was (84.68±4.38)mL residual dilute blood finally, containing equivalent red blood cells in (42.06±4.08)mL whole blood and white blood cells in (214.3±68.09)mL whole blood. In air trap, there was (11.98±3.27)mL blood, containing equivalent red blood cells in (8.32±2.52)mL whole blood and white blood cells in (58.97±24.57)mL whole blood. In blood return pipeline, there was 20 mL blood, containing equivalent red blood cells in (11.18±1.18)mL and white blood cells in (80.74±30.89)mL whole blood.The blood remaining in air trap and blood return pipeline was returned to donors by improved operation method.Conclusion The residual blood in air trap and return pipeline can be returned to donors, which provides technical support for the healthy development of voluntary blood donation.