Erika Narutsch ACF Abstract FY11

"Refrigerated Stability Study of CBC and WBC Parameters"

Serving the Profession 24:7-Michigan Society for Clinical Laboratory Science (MSCLS) 2011 Annual Meeting and Exhibits

Erika Narutsch

The purpose of this study is to determine the effect of refrigeration of blood stored in EDTA tubes on the parameters measured in a complete blood count as well as on the automated differential. Data will be collected on the Sysmex 2100 hematology analyzer at Greenville hospital in Greenville, Michigan. Each blood samples will be tested at zero, 12, 24, 36, 48, 56,and 72 hours. The parameters tested on each sample and interval include a red blood cell count, white blood cell count, hemoglobin, hematocrit, MCV, MCH, MCHC, platelet count, RDW-CV, MPV, neutrophil count, lymphocyte count, monocyte count, eosinophil count, basophil count, neutrophil percent, lymphocyte percent, monocyte percent, eosinophil percent, basophil percent and reticulocyte percent. Our hypothesis is that the results of the tests will be similar at each time interval. Based on the results of this study, samples taken from patients may be tested for an extended period of time, particularly when doctors would like to add a test to the patient order after the blood has been drawn, thus preventing the need for additional blood draws, resulting in lower costs for the patient and faster reporting of results.