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  • Title: Effects of one directional pneumatic tube system on routine hematology and chemistry parameters; A validation study at a tertiary care hospital.
    Author: Lee AJ, Suk Suh H, Jeon CH, Kim SG.
    Journal: Pract Lab Med; 2017 Dec; 9():12-17. PubMed ID: 29034301.
    Abstract:
    BACKGROUND: The validation of sample stability through pneumatic tube system (PTS) is essential. The objective of this study was to evaluate the effects of PTS transportation on laboratory results. METHODS: Paired EDTA and SST blood samples were collected from 56 randomly selected patients. Laboratory parameters were compared between PTS group and hand-delivered group. RESULTS: No statistical differences were observed for complete blood counts, white blood cell differential parameters, erythrocyte sedimentation rate and most chemistry parameters between PTS and hand-delivered transport procedures. Mean platelet volume results obtained from samples transported through PTS were lower than that obtained from samples transported through hand-delivered method (P = 0.001). The results of aspartate aminotransferase (P = 0.000), lactate dehydrogenase (P = 0.000), and hemolysis index (P = 0.000) from PTS group were higher than that from hand-delivered group. CONCLUSIONS: All laboratories should validate the stability of the results from samples according to transportation method.
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