Sorry to hear Janie is ill
Alkaline Phosphatase (ALP) is an enzyme produced by the biliary tract (liver). High levels indicate bone disease, liver disease or bile flow blockage. An ALP elevation is definitely suggestive of liver disease and requires follow up testing such as a bile acids liver function test.
I'm guessing the other liver enzymes (ALT & AST) were also high, these elevate relatively easily and are not as important in liver evaluation as ALP elevations but a substantial increase may also warrant follow up liver testing. In the event of hepatic lipidosis or fatty liver, the elevation in ALP is often dramatic
Bilirubin is a component of bile, and is secreted by the liver into the intestinal tract. High levels can lead to jaundice and indicate destruction in the liver and bile duct.
If there are any changes in Janie most especially if she starts looking a bit yellowish around the eyes, nose, mouth - get her in to the vet.
For the nausea - raise her food & water dishes up between 2-4 inches off the ground so when she eats her head is higher than her stomach, this will help to keep the acid down.
I wanted to suggest to try tempting her with tasty treats before you put her food down or slightly away from the food, sometimes it works better if the cat thinks they are just getting a treat on it's own instead of always ontop of the food since the cat food smell will overpower most things.
Cooked chicken always worked well for one of my previous cats, and my grrl Duffy loves any cereal
so if Janie has a taste for Cheerios or whatever try crushing one on top of the food.
