Shavri cannot read the numbers and wouldn't know what they meant if she could but she is maybe just going to skim Dr Chadra's surface thoughts to figure it out.
Their artificial Healing-Sight is very cool! Shavri things a lot of it ought to show up to Healing-Sight in some way, but - subtly, in many cases, and not quantitatively like that, and different Healers always have slightly different training and experience such that it's difficult to compare assessments and reliably follow changes and trends.
Shavri had been aware and tracking that his body's defenses against infection were substantially weakened, but she hadn't actually quite noticed the problem with his blood clotting – it's very easy to see with Healing Sight if an injury is bleeding more and longer than it should, even when the 'injuries' are the kinds of tiny internal bruises that patients get from being moved in bed, but Leareth has none of those right now, since that's exactly what a Cure spell targets. The underlying propensity-to-bleeding is harder to see.
...The combination does give her an idea, though, and she goes and has a look and - oh no. She was right and she did not want to be right.
:His bone marrow is - dying?: she tells Dr Chadra (and Samora and Marian.) :It's not - there's still some life-force there - but I don't think I can Heal it. ...Samora, it's the part that makes new blood and new - the part of blood that defends against illnesses - do you know if there's a healing spell that would put it back, if it's gone?: