Delicate situation with ugly timing - juggle between interviews & references

Hello all,

I seek your wisdom as to what I should do in this situation. It has been one stressful challenge after another and things are looking muddier than ever. It's to the point where the answer might be on my forehead and I am oblivious to it. Anyway, my first thought to all of this is: I need a job.

1. Almost two months ago, I applied for unit A. I have successfully gone through the recruiter process and the unit A manager has emailed me to confirm an interview date (in a week). I have worked on this unit before. I have yet to confirm the interview date (but will have to very soon).

2. At a different hospital, I am awaiting a manager whom I am certain will contact me in a week to set up an interview. The hospital has requested an external reference company to collect references, including one from unit A manager. This hospital location is optimal for me. I would love to work on this unit but I am unsure if I will 100% land the job. I need a job.

Should I tell unit A manager that I may also get an interview for another location and will need her to be my reference? I do not want to come across as insincere however and lose the job.

Secondly, a possibility is that I can reject providing unit A manager's reference to the external reference company. However, if the interview is in a week's time.. at the end of it, if she does hire me, I would still have to explain my situation to her.

I'm at a loss between both units. I want to work at one more than the other because of the location. I will need to be honest one way or another but I am fairly inexperienced and unsure of how to approach this. Your guidance will be genuinely appreciated. Thanks in advance!

I hope this post and its responses can help others as well.