Reasons for Elevated CA199

I’m currently accompanying my uncle in the endocrinology department of the hospital. He is 43 years old this year. We are currently discussing with the doctor. The doctor mentioned that the CA199 level is elevated. I was confused and didn’t know what it meant. What does it mean for CA199 to be elevated?
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Reasons for Elevated Jaundice Index in Newborns

An elevated jaundice index in newborns is a normal physiological phenomenon, typically with values below 12.9mg/dl considered normal, and those above 15mg/dl may require further investigation. Physiological jaundice will resolve on its own, so mothers should not be overly concerned. Methods such as increasing feeding volume, sunbathing, and promoting more excretion can help the baby expel bilirubin from the body. The baby’s jaundice index usually continues to decline after 7 days of birth, indicating no problems.
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