期刊
JOURNAL OF KOREAN MEDICAL SCIENCE
卷 37, 期 9, 页码 -出版社
KOREAN ACAD MEDICAL SCIENCES
DOI: 10.3346/jkms.2022.37.e71
关键词
Body Fluids; Fluid Therapy; Infusion Pumps; Intravenous Infusions; Solution; Viscosity
This study evaluated the effects of viscosity on the flow rate of different IV fluids when using IIFRs. The results showed that the flow rate of colloids was significantly influenced by the IIFR scale, suggesting caution should be taken when using IIFRs for delivering colloids.
Intravenous infusion flow regulators (IIFRs) are widely used devices but it is unknown how much the difference between the IIFR scale and the actual flow rate depends on the viscosity of the intravenous (IV) fluid. This study evaluated the effects of viscosity on the flow rate of five IV fluids (0.9% normal saline, Hartmann's solution, plasma solution-A, 6% hetastarch, and 5% albumin) when using IIFRs. The viscosity of crystalloids was 1.07-1.12 mPa center dot s, and the viscosities of 6% hetastarch and 5% albumin were 2.59 times and 1.74 times that of normal saline, respectively. When the IIFR scales were preset to 20, 100, and 250 mL/hr, crystalloids were delivered at the preset flow rate within a difference of less than 10%, while 6% hetastarch was delivered at approximately 40% of the preset flow rates and 5% albumin was approximately 80% transmitted. When delivering colloids, IIFRs should be used with caution.
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