I have applied for the same position before. I look to see when the position was reposted and look for changes in the position (FT, PT, PRN ect). I am still looking and have started a new approach by finding out who the manager is for the unit. I've found out that HR sometimes doesn't get the apps to the manager. I have been on a couple of interviews since and missed on position because of a internal transfer issue. I was told by my interviewer that I would have been offered the position otherwise. I make a point of waiting a week or two before contacting the manager again. If the decision hasn't been made, it keeps my name fresh. Anymore you have to be proactive in your searches and follow-up with your apps.