Elevated LDH1 can indicate liver damage, while elevated LDH overall above 50% of the upper limit often indicates cancer.

“and because it's composed of multiple families like ISO enzymes the lab can do a breakdown and tell you exactly where the damage is so let's say like uh ldh1 is produced to deliver right so if that's elevated that's contributed to the elevation then they have a limit information about capabilities right but unfortunately if it's let's say like 50 above the upper limit it's usually indication of cancer”