charge nurse leaving before report ends? okay?

My fourth day at new job(LTAC unit), still on orientation...
30min befor shift change, Pt goes bad. I inform my charge nurse who tells me to call Dr. (Charge does not evaluate pt. herself.)
Dr. orders pt. to be transported to ER.

So I am now in the middle of a transfer, while staff nurses are giving report. I look up with a question and not only has my orientation nurse left, but so has my charge nurse.
I took my questions to the oncoming charge nurse. No biggy, except that I needed my RN to sign the MAR for the IVP's she had given my pt. I had asked her several times through out the day, but she was on the phine, busy, yeah yeah later, etc.

I guess what I am asking as a first year LPN:
Is this something to be expected? And should I be a little more aggressive about charge documentation?