Is it relly true that a nurse should be able to carry 70 lbs?

Anyone from here who is not capable of carrying at least 70 lbs. I met an advisor in my school this week and she discouraged me to take up Nursing. I have mentioned to her that I can't carry 70 lbs. I want to know if she was right because, I don't really believe her. I know nurses out there who is even more skinnier and shorter than I am. I don't think they can carry 70 lbs and until now they are still working as a Nurse.

I forgot to mention her though that the reason why I want to take up Nursing is I want to be a Nurse Informatics, which I believe don't do patient care.