I have had two full blood counts in the past two weeks. First came back with a low white cell count at 3.5. I was then asked to go and repeat. When the results came back I was infomed that they will be repeated with samples for citrate and oxalate samples to be taking ref clumping. I have now idea what this means. Apart from the low white count I also have lower back pain, cough and tiredness. Any ideas??