Resume help - unit closure

The unit I was working on recently closed, causing me to have to transfer to another unit within my hospital after about 1.5 years working there. I am concerned that simply listing my positions on my resume may make it look like I am a frequent job changer. I would not have left my old job but had no choice. I was wondering if there was some way I can express this on my resume or maybe on the cover letter? I'm not actively looking for a new job or anything, but I just updated and rewrote my resume and I was thinking about how this made me look in the eyes of recruiters.
Normally, when hiring managers review job history, they will notice that both jobs are with the same organization so the job switch was a transfer, not 'job hopping'. If you want to express this on your resume, you can include a brief descriptor along with the time period of the job.... " Jan 2008 - April 2010 (unit closed): Med Surg/tele staff nurse"
Okay thank you! I didn't know that was not generally considered in the same light. I worked for one company for 11 years but transferred to several different jobs and have now worked for a different company for two years. I'll try you suggestion!
Are the two positions similar, same basic duties, in the same department? i.e. both med surgIf so, there may not be a reason to even list it as separate jobs at all
No the positions are quite different. I went from Neuro ICU to CTICU so I would think it would be best to list it seperately since I've learned so much that we didn't really use in Neuro ICU, and vise versa.
One entry with the facility.List each position you worked in without any explanation for the transfer. Nothing wrong with transferring within the same institution. That's not job-hopping. If the reason for the transfer comes up in the interview, that's fine. If not, don't worry about it.