"if i poisoned someone at work by giving the wrong tablets it wouldnt be classed as a mistake,it would be classed as negligent."
Only if you took negligent action in doing so. If you genuinely thought you had picked up tablet a, checked the prescription, and checked the drug, then something caused you to turn your head away and in doing so you picked up tablet b, it would be a mistake.
I am a nurse. I once did a 48 hour on-call, which was standard at the time. I was the last to do it, because the department had decided that due to increased workload, 48 hours was far too long for on-call. We were getting called in more than off.
I had been on duty on the Friday from 1pm-9pm. I was then on call from 9pm Friday to 9pm Sunday.
It was an unusually busy weekend for emergencies. We worked from Friday 9pm (when our shift officially finished) solidly through the night until Saturday 7am. By this point I had worked for 17 hours on the trot.
I got home from work at 7.30am and got into bed. At 9.45am I got a phonecall to say 'come in, we have emergencies'. I was the only one who had been on call the previous night, all the others were starting their on-call that morning (they had transferred over already to the new system, and we hadn't due to staffing issues).
By the time the third emergency case was out of theatre I was pooped. Seriously sleep deprived, and the list was still going.
A patient was prescribed Codeine Phosphate. Standard dose is 60mg IM. Everyone gets 60mg IM, they just do. Except this particular person. They were older and small-framed, so the anaesthetist had decided to prescribe 30mg initially and go from there.
The trouble is (and this is no defence, but merely an explanation), that when you are sleep deprived, your brain tells you what to read. It tells you what it is expecting to see. I 'saw' "Codeine Phosphate 60mg IM." I drew it up, didn't have a 2nd nurse to check with (luxury) and protocol says one nurse can give an IM.
As soon as I had depressed the plunger, I started my safety 'double check' that I always do before disposing of equipment. But in that split second, my brain came together, and I thought '30...30! I gave 60!!!'. You can't get it back out once it's in.
I went straight to the anaesthetist, told him what I had done, apologised and said 'you will need to fill in an adverse event form with me'. The very kind anaesthetist said 'no, thank you for reminding me that I needed to give a loading dose, anyway. 60mg will be fine.'
Now, obviously, I was extremely fortunate that the dose I gave was the 'standard' dose and a safe dose and the right drug in the right method. If I had given the wrong drug, an excessive dose or the wrong route of administration, I would have had to complete the adverse event report, and see it through.
However, regardless, what I did was a mistake and my employer would have taken responsibility because I was completing my duties. It was the system at fault, and the department knew that, so was changing it.
I still felt bad, and feel bad, but mistakes do happen. What I did as a result, though, was to phone the next on-call and say 'is there any way you can start early, I feel too tired to practice'. It was a warning that I heeded.
I'm not saying you aren't suffering. I'm not saying you don't need answers. I am saying that you don't need to sue, and that suing will not get you what you want. What you need is appropriate investigation and appropriate treatment, and an acknowlegement that this is not supposed to happen (but it does).