Is this BLOOD PRESSURE reading bad for a 74 yr. old woman who is sick? 124/54, pulse rate is 49.?

my grandmother has been home from a rehabilitation place for a few days now, and she was only there to rest and regain her strength back. Since she has been home it seems she is getting weak aagain, rather not getting better. I see her dwindling away and need advice. Please and Thank You.