Nursing recommendations

Question

im a Night nurse in with a new admit from another tour. Pt family calls about Pressure ulcer and beds. Now I know patient has pressure relief bed but did not know what type off the top of my head. Family calls and write that I need to document that I recommend a medically necessary air mattress or whatever. Maybe I said too much But I said I cannot write a recommendation on my note as I have not assessed the wound and open myself up to liability. I can write family requests such and such. Also I refuse to remove the dressing to assess the wound since it is intact clean and dry. Am I right that I shouldn't document things like that? I told family that I can verbally or leave message to tell the doctor or day shift to follow up. Maybe my response was not professional but my I feel my response was correct based on resource I have at night especially since been my wound care exp is not what I call enough to make judgement calls like that. I don't have experience with insurance coverage or facility policy on more advance mattresses. I usually deal with more acute issues. Nurse manager says I should just say I will follow up instead of explaining what I can and cannot do.