Liver enzymes are high in me 4 year old?

Calm down. If the doctor was alarmed by it, he would tell you.
And welcome to Fluther. Lurve.

Viral infections can cause temporary elevation of liver enzymes. Blood tests like chem panels or metabolic panels usually measure more than one liver enzyme, like alk phos (alkaline phosphatase), ALT, AST, bilirubin. If just one enzyme is up, and the rest are OK, it’s more likely to be something minor and temporary.

I’m not a doctor, but it seems logical that a viral infection could affect the liver. I have heard of hepititis secondary to mononucleosis (sp?) so I would assume liver enzymes might be elevated during this type of occurance. What is the range for normal? Is 237 very high? Do you have a follow up appt to run the test again? Also, vaccines are not 100%, so he may have had the vaccine and still got the mumps. What I don’t get is, if he had the vaccine I think he will come back positive for the antibody, so how do you know if he has it currently? Maybe the titer is much higher? Shilolo would know everything about this, could make you feel better.

I agree with @JLeslie on this one.

The word hepatitis in its most literal sense means inflammation of the liver, although we tend to think of infectious hepatitis like A, B, and C when we hear the word. Any number of things could cause a temporary increase in a liver enzyme – you doctor will probably repeat the test in a few weeks to make sure it’s gone back to normal.

Welcome to Fluther. It isn’t clear to me why your doctor thought that your daughter has mumps, but, just because she is vaccinated doesn’t completely eliminate her risk. Some people don’t mount a great immune response to certain vaccines, and can still develop the disease despite being vaccinated.

That said, it could easily be something else altogether. As @MagsRags has said, there are many viruses that can lead to liver damage resulting in elevations in so-called liver enzymes (though the elevated enzymes could be coming from another source). A very feasible possibility is that she acquired hepatitis A from somewhere (children are not vaccinated against hepatitis A), and the syndrome that led you to take her in and for your doctor to check the blood tests is actually hepatitis A. Alternatively, it could be a number of other viruses that classically affect the liver like Epstein-Barr virus (or mono) or cytomegalovirus (CMV). All of these diseases are rarely serious in children, so that should be reassuring to you. Obviously you should call your doctor if you are concerned and if you have more questions.