The use of gloves
Within the hierarchy of controls recommended by COSHH, elimination and engineering controls should have priority over the use of personal protective equipment, including the use of gloves. However, where it is not possible to achieve adequate control by other means alone, personal protective equipment, including gloves, should be used in combination with, and in addition to, other controls. In practical terms, gloves play an important role in protecting workers from exposure to blood-borne viruses, especially where there is a risk of injury, such as a puncture wound with contaminated sharps, abrasions or cuts.
It is likely to be in the laboratory and healthcare sectors where staff are at greatest risk of exposure. Also, the Advisory Committee on Dangerous Pathogens (ACDP) guidance The management, design and operation of microbiological containment laboratories' (HSE 2001) recommends that 'gloves should be worn for all work with material known or suspected of containing hazard group 3 biological agents' and that 'a supply of suitable disposable gloves in various sizes and materials should be available in the laboratory'.
The main considerations are:
- what gloves should be worn?
- how to remove gloves safely - to prevent potential cross-contamination
What gloves should be worn?
The gloves worn should be able to provide protection from exposure to blood-borne viruses for the duration of the tasks being undertaken. This may mean having to change them safely mid-task if they become damaged, and/or having to wear a combination of more than one type of glove to provide additional physical protection:
General hospital work or work in a laboratory is likely only to require disposable medical gloves (also known as medical examination gloves, exam gloves and surgical gloves). In certain circumstances, wearing two pairs of gloves may be required to provide additional protection. This allows for removal and replacement of the outer gloves, if contaminated, while retaining skin protection. The addition of a second pair of surgical gloves has been found to significantly reduce perforations to the wearer's innermost gloves.
For some surgical work eg, orthopaedic or dentistry, where additional physical protection may be needed, double gloving, the use of glove liners or of knitted or steel weave outer gloves may be appropriate and are proven to be beneficial.
For some work, such as post mortem examination or embalming, where there is a risk of exposure to blood-borne viruses as well as the requirement to use knives, saws etc, pierce and cut-resistant gloves are likely to be needed, in addition to those providing microbiological protection.
- Tanner J, Parkinson H. Double gloving to reduce surgical cross-infection (2002). Cochrane Database of Systematic Reviews, Issue 3. Art. No.: CD003087. DOI: 10.1002/14651858.CD003087.pub2.
Available at: The Cochrane Collaboration - Double gloving to reduce surgical cross-infection
When choosing protective gloves, look for the following information:
European Standards for personal protective equipment (PPE) demonstrate their conformity with the basic health and safety requirements of the EC Personal Protective Equipment Directive. Only equipment meeting these requirements is entitled to carry a CE mark and be sold for use in the EC.
The following information can be found on glove packs:
- EN 420:2003 - general requirements for gloves, supplemented by (as appropriate):
- EN 388:2003 - protective gloves against mechanical risks (abrasion resistant, blade cut resistant, tear resistant, puncture resistant);
- EN 374-1:2003 - protective gloves against chemicals and microorganisms. As for EN 420 and EN 388, plus gloves resisting microorganisms must achieve performance level 2 in penetration. Although this cannot infer protection against viruses because they are not used in the performance tests, in practical terms this is the highest level of protection afforded against microorganisms.
It is important to look for the above information on glove packs. Some disposable gloves, such as transparent polythene gloves, which may be in use in your workplace, are loose fitting and easily perforated. They will not conform to the above standards, especially for tear resistance, and are not fit for the purpose of protection against exposure to blood-borne viruses.
Latex allergies are becoming common with prolonged use of latex gloves, and the use of nitrile or vinyl gloves is recommended to avoid becoming sensitised. It is recognised, however, that within certain work environments, latex gloves are still used in large numbers due to their efficacy and relatively low cost. If latex gloves are worn, then powder free, low protein content materials must be chosen to help prevent latex allergy. Powdered gloves should be avoided as they can increase skin irritation and the likelihood of allergy development. Where latex gloves are in use appropriate health surveillance should be implemented.
Symbols to look for on glove packs:
When checking the pictograms for the biohazard protection standards that gloves must meet, it is also useful to have information on the level of conformity of the product. If present, this information is typically shown next to the pictogram, eg in brochures or on packaging. Conformity information may include a numerical performance indicator. If such information is absent, it should be requested from the glove supplier, as it can provide more detail on the suitability of a glove product for specific tasks.
How to remove gloves safely
When removing potentially contaminated gloves, it is important to ensure that you do not transfer the contaminant onto your skin. The following pictorial guides show proven methods for correct removal of gloves to minimise the risk of cross-contamination. They are available to download as posters to put up in your workplace from:
- Correct removal of gloves Single use gloves (splash resistant); and
- Correct removal of gloves Reusable gloves (chemically resistant).
It is important to use one glove to remove the other. With disposable gloves it is best to turn them inside out as they are removed.
Within the healthcare setting, support staff such as porters and operating department assistants may wear disposable gloves, primarily for their own protection, rather than that of the patient. Such staff should ensure they change their gloves before opening doors from one ward to another, and prior to undertaking tasks such as answering the telephone. Failure to do this may result in the transfer of infected material on to other surfaces, potentially leading to contact exposure of other staff, patients and members of the public.
Hand hygiene and disposable gloves
It is important to remember that glove use is not a replacement for effective hand washing, and the two should work together to protect the wearer and others, such as a patient or client being treated. Key requirements are:
- When using disposable type gloves, your hands should be washed and dried thoroughly before putting the gloves on;
- Where client or patient treatments are involved, a fresh pair of disposable examination-style gloves must be worn for each procedure and must be disposed of between procedures to avoid cross-infection. Never wash and reuse disposable gloves;
- If you need to stop work temporarily, eg to answer a phone, always remove and discard the gloves you are wearing and replace them when you continue working;
- Always wash your hands after glove removal - gloves are not a replacement for hand washing; and,
- Moisturising hand cream, applied after hand washing, can help prevent skin drying after frequent washing. Such products should never be relied upon as a physical barrier to protect the skin from infection.