[Melinda]

A critically ill astronaut using up precious oxygen is a problem? It’s the same amount that would be available to him had he remained healthy, right?

[HamiltonJay]

Not if he was injured during a collision or other systems failure that has put pressure on the oxygen available or able to be converted.

I’m sure they aren’t talking about a critically ill person under normal situation, but say the module is hit by something, and damaged, and people are critically injured during it and systems are harmed/limited as well?

You have to think about every contingency.

[Cruising Speed]

A critically ill astronaut using up precious oxygen is a problem? It’s the same amount that would be available to him had he remained healthy, right?

Logical inferences can and will be punished, lol.

On colony ships truly bound for the stars, corpses will be sent to the organ banks and recycling tanks.

[Old Professer]

They have plans for the rest:

[Harmless Teddy Bear]

A critically ill astronaut using up precious oxygen is a problem? It’s the same amount that would be available to him had he remained healthy, right?

You would think so.

[Prophet in the wilderness]

Maybe so, but, imagine the stink and health hazard it would cause in closed and confined areas..... it ain't like you can just open up a window and get a breath of fresh air.