A comparative study of plastic (polypropylene) and glass syringes in blood-gas analysis.

Author(s): Evers W, Racz GB, Levy AA

Publication: Anesth Analg, 1972, Vol. 51, Page 92-7

PubMed ID: 5061730 PubMed Review Paper? No

Purpose of Paper

Conclusion of Paper

Studies

1. Study Purpose

   The purpose of this study was to determine the effects of storing blood in plastic versus glass syringes and refrigerated storage duration on PO2, PCO2, and pH of blood specimens. All specimens were initially collected in a heparinized syringe and aliquoted into either plastic or glass sample syringes via a sealed multiconnector.

   Summary of Findings:

   No statistically significant changes in blood pH were seen after 4 hours of refrigerated storage in either plastic or glass syringes. PCO2 values fell during the first 30 min of storage at 4 degrees C and thereafter, rose steadily. PO2 values also fell during the first 30 min of storage at 4 degrees C, but no further changes were observed. There were no significant differences in PCO2 or PO2 values in specimens stored in plastic rather than glass syringes.

   Biospecimens

   • Bodily Fluid - Blood

   Preservative Types

   • None (Fresh)
   • Other Preservative

   Diagnoses:

   • Not specified

   Platform:

   Analyte	Technology Platform
   Gas	Clinical chemistry/auto analyzer
   Electrolyte/Metal	Clinical chemistry/auto analyzer

   Pre-analytical Factors:

   Classification	Pre-analytical Factor	Value(s)
   Biospecimen Preservation	Type of fixation/preservation	None (fresh) Refrigeration
   Storage	Type of storage container	Plastic syringe Glass syringe
   Storage	Storage duration	0 min 30 min 60 min 120 min 240 min

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