[Please note: The following references and websites have been updated since the original Commissioner letter distributed in 2008] Show
Bibiliography: Healthcare-Acquired Hepatitis
WebsitesThe following websites will assist you in developing or updating your infection control policies and procedures. Association for the Advancement of Medical Instrumentation (AAMI): Centers for Disease Control and Prevention (CDC): Occupational Safety and Health Administration (OSHA): New York State Department of Health:
Part three of this four-part series looks at the advantages and disadvantages of parenteral administration Shepherd M (2011) Administration of drugs 3: parenteral. Nursing Times; 107: 36, early online publication.
Parenteral drug administration means any non-oral means of administration, but is generally interpreted as relating to injecting directly into the body, bypassing the skin and mucous membranes. The common parenteral routes are intramuscular (IM), subcutaneous (SC) and intravenous (IV). Box 1 outlines the advantages and disadvantages of parenteral routes.
Advantages
Disadvantages
Parenteral administration requires an appropriate injection technique. If performed incorrectly – for example using the wrong size needle or cannula – it can cause damage to nerves, muscle and vasculature and may adversely affect drug absorption. Intramuscular and subcutaneousIn general, IM and SC injection of drugs establishes a deposit or “depot” that will be released gradually into the systemic circulation. The drug’s formulation will influence the period over which it is released; for example, the formulation of antipsychotic agents such as flupentixol in oil allows them to be administered once a month or every three months. IntravenousThe IV route carries the greatest risk of any route of drug administration. By administering directly into the systemic circulation, either by direct injection or infusion, the drug is instantaneously distributed to its sites of action. This route of administration can be complex and confusing. It may require dose calculations, dilutions, information to be gathered on administration rates and compatibilities with other IV solutions, as well as the use of programmable infusion devices. The preparation of IV medicines requires the use of an aseptic technique, often in a ward environment that is unsuited to such work. To minimise the risk of errors, it is imperative that practitioners can demonstrate competence to practise safely, and have access to expert information and advice. Box 2 lists considerations for preparing IV drugs. Box 2. Considerations for IV administration
The National Patient Safety Agency (2007) has highlighted the risks associated with the preparation and administration of injectable medicines and proposed a set of competencies. These provide a useful basis for the creation of policy and training in this area.
Martin Shepherd is head of medicines management at Chesterfield Royal Hospital Foundation Trust National Patient Safety Agency (2007) Promoting Safer Use of Injectable Medicines. London: NPSA. |