Bed blocking or, " for the want of a nail, a shoe was lost" etc

DH was quite poorly around New Year so when we came home he rang to speak to his GP. As it turned out the GP was unable to ring him back until Wednesday but when he did, he arranged for DH to have a blood test. Because DH was really not too with it, he agreed to having this done on Friday rather than push for straight away. The test results showed that he was severely, if not dangerously anaemic ( we had suspected something like this, knowing the symptoms) but that result didn't come through until early evening so he was told to go to our local hospital via A&E and would be receiving 4 units of blood.
4 hours after arriving he made it as far as a bay in Resusc where he was seen but as no beds were available he was there until 3.30 on Saturday morning. The first transfusion started around 5 a.m. Blood transfusions take 4 hours per unit plus observation time and time to do blood tests in betwee pairs of units. Still hopeful at that stage he might be out on Saturday night or today at the latest.
At the time of writing, he has had the first units(yesterday, finished by early afternoon) bloods were taken for testing at midnight and by 11 o clock this morning he had still not seen a doctor or started the third and fourth units which the tests showed he needed. I think it is unlikely he will be out before tomorrow but I wonder at how many points in this tedious narrative things might have been different so that at least one bed could have been freed up in a male medical ward?
1) GP being available even for a quick word on the phone on Monday? 2) DH pushing for the blood test on Wednesday? 3) Taking up space in A&E for all those hours on Friday night? 4) Being able to see a doctor yesterday ( when I asked I was told -wait for it- there were only 2 doctors on duty in the whole hospital) ? 5) Having it done as originally planned, 2 units on Friday night and 2 on Saturday? The duty GP who rang through these results said it would be dangerous to leave it till Monday but OMG hospitals at weekends are another thing. I am but grateful for the friendly nursing staff dealing with an impossible state of affairs.