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Particulate contaminants of intravenous medications and infusions
Abstract:
Particulate contamination in small volume parenteral medications has been studied and compared with that found in a selection of large volume infusions. Particle counts in 39 commonly used small volume medications and 7 large volume infusions were performed by an automated light blockage method (HIAC) or by optical microscopy. Based on these results and a random survey of drug therapy of intensive care patients, it is concluded that the contribution of intravenous medications to the total particle load received by such patients is likely to be many times greater than from infusion fluids. Until firm evidence regarding the harmful systemic effects of drug particles is available and the manufacturing regulations adjusted appropriately, final in-line filtration of infusions immediately proximal to the intravenous cannula should be considered when drugs are being given intravenously.
Insights
Small volume parenteral medications contain significantly more particulate contamination than large volume infusions. For intensive care patients, intravenous drug administration contributes substantially to particle load, suggesting the need for in-line filtration.
Area of Science:
- Pharmaceutical Science
- Clinical Pharmacy
- Medical Device Technology
Background:
- Particulate contamination is a concern in intravenous therapies.
- Parenteral medications are administered via small volume parenteral (SVP) and large volume infusion (LVI) routes.
- The particle load from different administration routes requires comparative analysis.
Purpose of the Study:
- To compare particulate contamination levels in SVP medications versus LVI fluids.
- To assess the contribution of intravenous medications to the total particle load in intensive care patients.
- To provide recommendations for mitigating particle exposure during intravenous drug administration.
Main Methods:
- Particle counts were determined for 39 SVP medications and 7 LVI fluids.
- Automated light blockage (HIAC) and optical microscopy were employed for particle analysis.
- A random survey of drug therapy in intensive care unit (ICU) patients was conducted.
Main Results:
- SVP medications exhibited higher particulate contamination compared to LVI fluids.
- Intravenous medications were found to be a major contributor to the total particle load in ICU patients.
- The particle load from drug therapy significantly exceeded that from infusion fluids.
Conclusions:
- Intravenous medications contribute substantially more to patient particle load than infusion fluids.
- Final in-line filtration proximal to the cannula should be considered for intravenous drug administration.
- Further research on the systemic effects of drug particles and regulatory adjustments are warranted.