Sure sounds like it, but it is hard for us to know, not being there.
When Dad was dying, we asked the hospital to set up a lazyboy for us, so
at least one of us, could always be there, talking to him and taking care
of many of his needs, like putting drops in his eyes and on his tongue,
and a salve for his lips. During the last few days, my sister and i stayed
24 hours, with short breaks to eat and stretch our legs.

That way we could have more quiet times with him and less interruptions
from the nurses. So they only interrupted to adjust his position and
change bedsheets and toiletry and check his urine bag. Then they left us
alone with him until their next check.

Ask if you and/or family members can do the same (stay 24/7) and when
nurses come in, ask them questions.  We asked if it was okay to check
and/or massage his feet. That way we could watch for cooling and signs of
slowing down of the circulatory system (feet and lower legs darken).  He
wasn't eating nor drinking, he was sleeping a lot, but when we speke to
him, he sometimes responded by squeezing our hand, or moving a finger, or
raising an eyebrow. One time, after a prayer, he said "Amen" (very low),
so have quiet and listen carefully and talk to her. The hearing continues
on, so be careful what you say around her, but do tell her that you love
her (and other nice things) and it's okay to let go.

Congestive heart failure can result in sudden death. happened within hours
for our pet.
It's hard to be specific about each person.

My thoughts will be with you all.
J

You know the answer to that yourself......