now,
would Jordan himself be an option for a transplant?(being at least half Kryptonian) obviously they would never have him make that sacrifice/ nor would Clark/Lois ever want or accept such a sacrifice
but, if it's like a 3 way transplant, like he gives his heart to his Dad, and he gets a donor human heart transplant (but, it would mean giving up his powers as a human heart wouldn't be able to handle it ) so, its like save your Father, but, never be able to use your powers again... kinda Sacrifice (not giving up his live "Sacrifice"
)