I have a blood test every year, sometimes more often, and that means going to Heatherwood phlebotomy clinic.
They open at 08:30, and at that point there are typically 30 or more people waiting already (which is about capacity for the waiting room). They have numbered cards you take, and they call a number. If you are lucky then there are two of them taking blood.
First off, they really should have a second set of cards (maybe just for the first hour of the day), perhaps in red or something, for fasting blood tests. I was feeling hypo as it was, but had to wait over an hour to be seen. Luckily my test was not a fasting one, but had it been I could well have been collapsing. Normally a fasting test is not a problem for someone, but I have daily insulin, and that can mean some times I have to eat - such as when I have not eaten for 12 to 14 hours for a fasting test. Even though, in my case, it would have put people ahead of me in the queue - a priority queue for fasting would make sense. The blood test form says if fasting or not, so not like people could game the system and take the wrong card.
They are pretty efficient, check your name and DoB, strap arm, clean, find vein, take blood, tape dressing over it, and then spend about 50% of the overall time, or more, writing your name, and details (about 4 lines of text) on each of the blood sample containers (in my case, two).
It strikes me that the system could be massively better with a simple barcode readers and label printer. Even with nothing needing to be on-line, just a QR code on the blood form the doctor sends that when read provides the lines of text to print on the sample label, just that. Such a device would not be expensive (well, not compared to staff time over its operational life) and could mean processing at roughly twice the rate, by my estimate. A simple fall back to writing means not building in a dependancy on technology.
Of course the printed label could also have a QR code which probably then saves time when the samples are processed later, as well as reducing transcription errors.
Don't the NHS have people whose job it is to think of things like this?
P.S. I am surprised someone does not make a small label printer with QR reader that literally just prints the QR label content on a label on each scan. Must have loads of applications just like this!