Hello all -
I'm hoping some of the more seasoned RNs out there can give me some advice -- and thanks in advance

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I'm graduating May 13 from my ADN program, I'm 40yo, and I have 3 young kids (and a good husband).
Background: I've just been offered a job at a LT care facility nearby my home (30 min) for decent pay, also student-loan reimbursement if I stay for 2 yrs. It's also a SNF, so they do IVs and wound vacs, etc.(how many, don't know). They seem very excited about me. (I have a previous Bachelor's in Business, and they see me heading toward a staff educator position, IV specialist... but I don't know how much of that is to just get me in the door.) They want me to start right away and would like an answer on Monday.
My Problem: My dream is to be an ER nurse; possibly even a flight nurse.
I've applied to 3 hospitals which are also in the same commuting range, and have so far been called for an interview with one, but then had to decline because they only wanted days, even tho I applied for eves/nights, and haven't heard from the other 2 (but honestly it hasn't been that long since I applied-within a week).
My Question: If I do go to a LT facility first-off in my career, how will I be looked at by hospitals when I want to make the switch a couple years down the road? What are the advantages to working LT care?
Will I be doing myself a dis-service by accepting the first job I've been offered?
Thanks, Everyone - I hope someone takes the time to read this and help me out.