Who are allowed to work with body fluids and human tissues?
Those who work with body fluids and human tissues are to get training about infection risks and how they need to work in a safe way to avoid infection.
The training should include:
- Infection risks and routes of infection
- Demonstration of the local handling and safety instructions
- Information on how to:
- Avoid infection risks
- Get access to the offer of vaccination
- Protect oneself against needlestick, cut and splash injuries
- Follow hygiene measures for body fluids
- Act in case of unexpected events such as needlestick, cut and splash injuries and spills
- Report incidents and work injuries
Facility requirements
The premises must fulfil at least biosafety level 2 and be labelled with a sign that states biosafety level and symbol for biological hazard, according to the provisions “Smittrisker”and “Arbetsplatsens utformning”. Equipment for handwashing and hand disinfection must be available.
Handling in general
The work must be carried out applying special hygiene measures for body fluids and in a way that risk for splashes, aerosol formation and spill is minimised. Activities that can generate aerosols are pipetting, mixing, shaking, sonication and centrifuging. Use of sharp items should be avoided if possible. Disinfection of material and surfaces is done after finished work.
Protective measures when handling body fluids and human tissues
- Biosafety Level 2 or higher must be applied as described in the provisions Smittrisker (in Swedish)
- For work operations that involve risk of splashes or aerosol formation a splash guard or visor should be used
- If there is risk for airborne infection handling are to be carried out in a biological safety cabinet (BSC) of class II
- During the ongoing Covid-19 pandemic: Material containing respiratory tract secretions (may contain large amounts of virus) should always be handled in a biological safety cabinet (BSC) class II.
- Personal protective equipment:
- Long-sleeved protective clothing, or long-sleeved disposable plastic apron.
- Protective gloves, approved for handling virus-related samples, if there is a risk of contact with body fluids.Protective gloves that fulfil EN 374-5:2016, the box should be labelled with pictogram for microorganisms and the text VIRUS underneath the pictogram.
- Further protective equipment, for example visor/protective goggles, if the risk assessment has shown that this is required.
- Sharp items (needles, sharp items in glass, razor blades):
- Should be avoided as far as possible
- Must have an integrated safety function if such products are available on the market, alternatively blunt alternative products may be available.
- Needles should never be recapped after use.
- Hand wash and hand disinfection:
- Wash hands with soap and water, disinfect hands after finishing work.
- Special hygiene measures for handling body fluids should be applied.
Note! Further protective measures and a higher biosafety level may be needed if the risk assessment shows that is needed (for example if there is a suspicion that infectious agents in risk class 3 can be present in the material).
Sampling close to patient
The risk assessment determines what protective measures are needed in order to carry out the sampling in a safe way, to avoid splashes and transmission through direct contact. If needles or other sharp items are used, the sampling is to be carried out using safe products (products with an integrated safety function) and needles are not to be recapped after use.
Desinfection
Disinfectant of choice must be effective against enveloped viruses. Surfaces that are clean can be disinfected with 70 % ethanol. Other surfaces should be disinfected with a tenside-containing agent, for example surface disinfection (45 % isopropanol) or virkon. More information about surface disinfection and disinfectants can be found in “Vårdhandboken” and at the Public Health Agency of Sweden.
Accidents
Needlestick, cut or splash injury: follow the LiU routine for needlestick, cut or splash injury if risk for infection. The infection clinic should be contacted immediately after an injury that involves contact with body fluids or human tissues. The incident should also be reported as an incident or work injury, see the routine for more information.
Spills: Use the spill routine that has been set up for the work. Use an effective disinfectant for enveloped viruses.
Inactivated material
If the material is inactivated with a validated method further analysis can be carried out at a lower biosafety level than Biosafety Level 2. However, if there is uncertainty regarding whether the inactivation is complete the material needs to continuously be handled at Biosafety Level 2.
Handling of waste
Waste that contains, or has been in contact with, blood or other human material (for example urine, tissue samples) is to be handled as infectious waste. The waste is to be placed into dedicated containers labelled with “UN 3291”.
Sharp items that have been in contact with human body fluids are to be discarded in secure waste disposal containers approved for sharp waste, labelled with “skärande och stickande avfall” (pricking and cutting waste) och UN 3291.
Contaminated laboratory coats are to be decontaminated, for example through autoclaving or according to local routine.
For more information, visit the page Laboratory waste.
Transport of samples
Human samples with minimal probability to contain infectious agents can be sent as “undantaget medicinskt prov” (in English “exempt medical sample”).
Samples or material with suspected or known content of infectious agents are to be transported as “Biologiskt ämne kategori B (UN 3373)” unless it does not involve infectious agents belonging to “Biologiskt ämne kategori A (UN 2814).
Read more in “Packa provet rätt” and the page about Dangerous goods.
Samples that contain or are suspected to contain SARS-CoV-2 are classified and transported as ”Biologiskt ämne kategori B (UN 3373)”. Cultured material such as strains and isolates are classified and transported as “Biologiskt ämne kategori A (UN 2814).
Freezing of samples
Samples containing body fluids or other human material are to be labelled with sufficient information regarding content and date for collection of samples. Date and content is important information for coworkers that later on are to be handling the samples, or if there is an unexpected event such as a freezer failure. The freezer needs to be labelled with a symbol for biological hazard.
Written handling and safety instructions
When handling body fluids and other human tissues written instructions needs to be available for the work. They should include:
- Who are allowed to work with body fluids and human tissues (including requirements on training and information)
- How coworkers get access to the offer of vaccination
- Methods
- Use of Equipment
- Instructions on how to use personal protective equipment and technical aids (e.g. sharp items with integrated safety function) to avoid needlestick, cut and splash injuries.
- Routines for disinfection and cleaning
- Measures in case of unexpected events (e.g. needlestick, cut or splash injury; spills)
- Waste handling and laundry routines