An update: I had three interviews with same institution.
Shadowed yet again, for four hours. Followed up next day with thank you email.
Offered job the very next day!
I am posting this update for others who may be going thru same process. As Ashley said, I DO believe it is common. So I want others to know not to take it personally or get too frustrated. It is apparently just the way things are done (er, not done!).
I think it would be nice if HR could just send out standard "The position has been filled, thank you for your interest" instead of leaving you hanging.
So just keep interviewing until you get offer.
An aside: I last worked in the 90's. Boy, were things different. Remember the nrsg shortage? You walked into HR, filled out application, were sent RIGHT up to nurse manager, walked out with a JOB thirty minutes later!! In 2012, you spend LOTS of time at computer, can't even get thru to a real person in HR, spent THREE months interviewing before offer. Telephone interviews, Shadowing, background checks, online leadership tests, peer and behavioral interviews. I get exhausted just typing and thinking about it!
You can't imagine how THANKFUL and happy I am to be employed in acute care again! And I SO appreciate the online community of All Nurses. It has been a great source of support and advice. A way to feel connected with peers of all ages and stages. THANKS TO ALL OF YOU.