What causes someone's hemoglobin levels to continue to go down even after they have just recieved a blood transfusion? What could it mean? My 35yr old husband recently had surgery to have a broken rod in his left leg replaced (this wasn't the first surgery like this that he's had) and rather than coming around quickly afterwards, like he has for the other 8+ similar type surgeries he's had, he was quite sluggish and didn't feel well. I thought this a little odd, but didn't worry to much, thinking he would come out of it. About 7-8hrs after surgery, he grabbed me and said he couldn't breathe/catch his breath and his chest had a very heavy sensation on it. The hospital staff rushed him off for all kinds of tests: echo gram, ct scan, chest e-xray, some dye test, etc. They found nothing wrong with his heart. They did find his potassium level was very high, that his kidneys were trying to fail, that his whit blood cell count was 31, and his hemoglobin was down in the 6s. He had brown urine with blood in it and was vomiting blood (dark brown with red pieces in it). They began to flush his system with iv fluids and began giving him blood transfusions, amongst a bunch of other meds/antibiotics. Now, four days later, his kidney function/potassium is back to normal, white blood count is down to 19, and he can hold down solid food again. However, his hemoglobin level has fallen again. The first 3 units of blood he recieved raised his level up into the 7s, but last night he recieved 2 more units of blood and we were told after labs were done, his hemoglobin has falled back down to 6.4. The doctors don't seem to have any idea why this is happening. This is really scaring my husband and I. Please if anyone has any ideas what is going on please let me know. Thank You