I recently entered the hospital because of a Kidney Injury that was caused by an injection of Methotrexaxte (PF) that went wrong. The injection caused the blood to rise to the top of the skin as a very bad bruise. Within four or five days I was falling down, falling asleep, and my speech was slurred - my last blood work showed up as very good - forty days later the calcium level and the creatinine level was extremely high. Is this one of the bad symptoms that can be caused by this type of injection?