Evaluation of a computer-directed pneumatic-tube system for pneumatic transport of blood specimens.
Author(s): Weaver DK, Miller D, Leventhal EA, Tropeano V
Publication: Am J Clin Pathol, 1978, Vol. 70, Page 400-5
PubMed ID: 707406 PubMed Review Paper? No
Purpose of Paper
Conclusion of Paper
Studies
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Study Purpose
The purpose of this study was to determine the effects of PTS transport on 15 clinical chemistry and 6 hematological analytes and the effects of tube fill volume on LD levels in blood. Specimens were transported up to 253 m with 16 bends at 7.6 m/s in carriers with foam inserts which prevented movement of the evacuated glass tubes.
Summary of Findings:
LD levels were 5.9-8% higher after transport by PTS than after hand-delivery and were also increased when the tubes were only 50 or 75% filled compared to 100% full tubes. After PTS transport, levels of sodium, potassium, chloride, carbon dioxide (CO2), total protein, albumin, calcium, glucose, creatinine, total bilirubin, alkaline phosphatase, aspartate transaminase, acid phosphatase, uric acid, leukocyte count, erythrocyte count, hemoglobin, hematocrit, prothrombin time (PT) and partial thromboplastin time (PTT) remained within one standard deviation of the mean measured after hand-delivery and within the assay precision.
Biospecimens
Preservative Types
- None (Fresh)
Diagnoses:
- Not specified
Platform:
Analyte Technology Platform Carbohydrate Clinical chemistry/auto analyzer Electrolyte/Metal Clinical chemistry/auto analyzer Cell count/volume Hematology/ auto analyzer Gas Clinical chemistry/auto analyzer Protein Clinical chemistry/auto analyzer Small molecule Clinical chemistry/auto analyzer Protein Hematology/ auto analyzer Morphology Hematology/ auto analyzer Pre-analytical Factors:
Classification Pre-analytical Factor Value(s) Storage Within hospital transportation method Hand-delivered
Pneumatic tube system
Biospecimen Aliquots and Components Aliquot size/volume Full tube
75% full tube
50% full tube