Blood and plasma, both urgent and regular deliveries. Urgent samples. Urgent paperwork.
Hospitals keep a blood bank. We pre order for elective work and keep adequate emergency reserves. It is rare for a hospital to need urgent supplies but when they do the blood is sent from the Regional Transfusion Centre, not a hospital! A blue light vehicle is available 24/7 and probably faster than a drone
Samples? No, urgent samples are analysed in the individual hospital. Intensive care and operating theatres even have point of care machines that do the testing at the bedside. Other tests that need to go to a specialist centre may be important but can take days or weeks to analyse so a drone is irrelevant
Paperwork? The NHS is paperless. We are not allowed to use paper.
But lets see the MEDICAL results of the trials. What was conveyed and why? What benedit did a drone have in terms of capability, speed or cost? Remember this is not cost free to the NHS - they will have to provide staff, attend training, write protocols and operate the landing sites. Great fun for wanabee aviators but they are being paid by the taxpayer and often already falling short.