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A Comparison of Field Techniques Used to Pressure-Infuse Intravenous Fluids

Published online by Cambridge University Press:  28 June 2012

Steven J. White ,
William A. Hamilton  and
James F. Veronesi
Steven J. White*
Affiliation:
Assistant Professor of Emergency Medicine, University of Rochester Medical Center, Rochester, New York, USA
William A. Hamilton
Affiliation:
Paramedic Coordinator, Armstrong County Memorial Hospital, Kittanning, Pa., USA
James F. Veronesi
Affiliation:
Paramedic, Armstrong County Memorial Hospital, Kittanning, Pa., USA
*
University of Rochester, School of Medicine and Dentistry, Box 655, 601 Elmwood Avenue, Rochester, NY 14642, USA, (716) 275-1763; FAX (716) 461-9778
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Abstract

Application of pressure infusion bags may increase intravenous (IV) flow rates three-fold. Commercially available pressure infusers, manual squeezing of the IV fluid bag, inflating a blood pressure (BP) cuff around the bag, and kneeling on the bag have been used by prehospital personnel attempting to augment fluid infusion rates. To test the efficacy of each these methods, seven experienced paramedics were asked to employ each method in two trials using a 1-liter bag of saline though a 14-gauge, 5.7cm catheter and a standard administration set. Gravity flow from 80cm served as the control.

Pressure infusers generated flow rates of 257±54 ml/min and 296±53 ml/min when inflated to 300 mmHg and maximum pressure respectively. This rate was 2–2.5 times that of gravity flow (123±2 ml/min) and significantly greater than those rates obtained by any other method (p<.0005). Manually squeezing the bag also was significantly better than was gravity flow with flow rates of 184±46 ml/min and 173±40 ml/min achieved by each of two different squeezing methods (p<.01). Neither blood pressure (BP) cuff application and inflation (135±28 ml/min) nor kneeling on the bag (125±36 ml/min) was better than gravity alone.

These results indicate that pressure infusers should be used to the exclusion of other field methods of supplying infusion pressure. If pressure infusers are not available, manually squeezing the bag is the only alternative acceptable in the field.

Type
Original Research
Information
Prehospital and Disaster Medicine , Volume 6 , Issue 2 , June 1991 , pp. 129 - 134
Copyright
Copyright © World Association for Disaster and Emergency Medicine 1991

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Footnotes

This paper was presented at the Sixth Annual Meeting of the National Association of EMS Physicians in Houston, Texas, June 1990.

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