Ergonomics - time to do my VDU risk assessment again!

In this weeks blog I want to really discuss Ergonomics and start to think about how this is understood, or not, in healthcare. 

My interest in this area started years ago - delivering simulation I started to get invited, or invite myself, to a variety of trust (organisational) meetings focussing on a number of quality improvement areas. Topics that have probably been procrastinated on around the world in healthcare organisations such as 
  • patients slips and falls
  • how to spot the deteriorating patient 
  • rates of infection in central lines and urethral catheters ….etc 
What I realised over a period of time was that I was having very similar conversations with each disparate group i.e. whilst we focussed on very specific clinical elements there was some unseen presence in the shadows that was not recognised - maybe this entity offered a solution across the range of clinical issues and maybe even a solution to issues we were not looking at! 

Initially my focus was around the team - this was something tangible and in my simulations something I could experiment with - adding elements and seeing how the team reacted and focussing on the Big Five elements of Team Work, described by Eduardo Salas, that is embedded in a lot of the team taxonomies. More and more I started to see the predictable nature of human performance and realised how much this was impacted by how our brains interpreted the world around us. 
These human factor focussed sessions strongly focussed on team resources management and non technical skills -  but still there was that unseen force in the shadows. 
As part of understanding how teams worked I started looking at classifications of errors partly out of a growing frustration that our main cultural approach for teaching in healthcare (or learning from errors) seemed to be the presumption the error was caused by a lack of knowledge or just reckless behaviour. 

So enter the world of ergonomics and the system….ok for purists I probably need to state within the UK the terms Ergonomics and Human Factors really are completely interchangeable phrases and is a scientific discipline in its own right. One of the most useful representations for the complex world we work in for me is the SEIPS 2.0 human factors engineering model. 

This model demonstrates how when we do a task we use a myriad of tools and technology, in an internal environment (layout, heat and lighting), in an organisation (teams and culture, senior leadership) and are effected by external environment (national guidelines, process, cultural, regulatory, government etc). Further more when doing a task not only do we have the physical task, but the cognitive, social and behavioural elements. Really fundamentally we are looking to understand what is happening in context of the humans and ensuring that design at all levels is focussed on how we work, think and behave but also recognises the physical and cognitive limitations so that it helps us do the right thing - this is actually almost an alien concept in healthcare where more often than not it feels that systems are there to make our job harder or make us do a job in a way that doesn't feel natural. 
So very much now I see human factors (or ergonomics) as being so much more than team work - indeed I have deliberately chosen to use the term ergonomics in my blogs just to emphasise (to healthcare workers) that I am not talking just about team working and simulation. The system is actually the foundation for all the work we do. Indeed thinking back to the blog on cognition  if we agree we cannot (easily) re-programme the way people think, the natural conclusion is that subconscious errors (cognitive bias) are not really going to be affected by training or the acquisition of knowledge, in fact the only real way to reduce harm events is to have the robust systems that recognise humans may perform variably and support us to do the right thing

So where are we in healthcare? 






This picture sums up for me where we are - it is a switch that turns off a drug fridge. When it has been switched off / deliberately or accidentally all the drugs have been wasted and there are clear costs not to mention the issue of drugs not being available. As this has happened a few times someone has fixed it reactively. 

This switch for the drug fridge is a metaphor for how we tend to design processes, systems, new roles, develop quality improvement, new buildings, new pathways, new procedures in healthcare …in fact everything we do and put them into practice and test them - only adapting them when they do not work - or just getting used to them not working! We focus on the technical (clinical) elements and presume our staff will just adhere to our policy and work as we describe (imagine).  For me all to often in healthcare we are do not understand the design or process mapping to maximise human performance. 

I really believe that there is a need for far greater engagement with the individuals (expert) ergonomists who allow this element to become proactive so we don't need to test things in the real world. These individuals can work with the clinical staff to develop transformation, quality improvement process they will help to ensure that our systems and process do the right thing and also consider the well being of our staff. 

...as a final aside ....the plastic pot was removed from the drug fridge switch so we are now back to replacing the fridge contents every now and again !


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