The RFID solution is to embed a tag into the blood bag label itself. The paramedic who transfuses the blood can scan the bag before transferring. He/she typically enters the patient ID number, or in a better system, the patient also has a wristband RFID tag which identifies him uniquely.
In case the wrong blood bag is scanned, the reader can throw up a warning like this :
This will save the life of Mr. John Smith (who will no doubt, be eternally grateful to the technology, if only he knew what was about to happen!)
In thousands of hospitals across the world, blood transfusion is an everyday business, but fraught with risks. This is, not only because contaminated blood may be transfused into an otherwise healthy patient, but also because he may receive the wrong type of blood altogether.
Why have the number of mistakes occurred and worstly increased? This is because many hospitals have cut back staff due to cost pressures. The person who collects blood is not the same person who transfuses it. Typically the patient is not known personally to the nurse who administers the transfusion. The misidentification can occur due to overwork, carelessness, or any other factors. What is important is that it does take place. After the event, there is no point in blaming people, processes, or institutions because preventing such incidents is to be the main thought. And, due to RFID technology, these errors are completely preventable. In a typical hospital emergency room, the following situation is not unimaginable :
One sees that the nurse or paramedic can easily pick up the wrong blood bag, get confused because of similar sounding names, and hence transfuse the wrong blood. This is in most cases, fatal.