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Doctor insights on: Normal Ca 19 9 Ca 125 Levels

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Is a ca 125 level of 18 normal for a 38 year old female? Range is <36.

Is a ca 125 level of 18 normal for a 38 year old female? Range is <36.

Yes: Ca 125 is not a good screening test. See this site for more info. http://www.medicinenet.com/ca_125/article.htm. ...Read more

Dr. Chad Levitt
125 doctors shared insights

Ca125 (Definition)

Ca-125 (cancer antigen 125 or carbohydrate antigen 125) is a biomarker/tumor marker for ovarian cancer (etc); however, it is not sensitive or specific enough to use as a screening test. Also, a uk study showed that treating based on ca125 level did not improve outcomes. "125" comes from the 125th attempt to develop a marker. It was introduced by bast ...Read more


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Is a 9 level normal on a ca 19-9 test?

Yes, it seems to be : It is in the normal range. Why did you have it done? ...Read more

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If ca19-9 within normal levels or negative, are you cancer free? Is there a test to show that you are in the % group that can't produce the antigen?

If ca19-9 within normal levels or negative, are you cancer free? Is there a test to show that you are in the %  group that can't produce the antigen?

Misconception: Only a handful of cancers produce ca19-9, and even then it's won't be detectable at a significant level unless there's enough mass of the cancer to produce it. This is not a screening test. If levels drop to undetectable after surgery, it's no guarantee of a cure. It's most useful to follow and watch for recurrences of a known ca19-9 producing cancer. ...Read more

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2 ovarian cyst, one 8 CM and the other 6cm. Had vus done, low level echos. Going back in 2 months for review. Ca-125 in normal limits. Concered?

2 ovarian cyst, one 8 CM and the other 6cm. Had vus done, low level echos. Going back in 2 months for review. Ca-125 in normal limits.  Concered?

Low degree of concer: Most common cause of such benign cysts are functional cysts that are very common in reproductive age females. Unless, presenting with symptoms (pain, nausea, vomiting, fever etc), your physician may opt to follow them with a repeat us in 3-6 months. Unless you have strong family hx of cancer, or personal hx of cancer, there is a low level of suspicion for ovarian cancer. ...Read more

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What does it mean when the CA19-9 level goes back to the normal range when someone has pancreatic cancer? Is this a sign of remission?

What does it mean when the CA19-9 level goes back to the normal range when someone has pancreatic cancer? Is this a sign of remission?

Well....: If it was elevated before surgery and now is normal, I would say it is a very good thing BUT, that as of itself does not mean it is in remission or that it will stay that way. Cancer can exist in microscopic form and often there is no way to know for sure, be it with labs or even with scans. Such patient will need long term follow up and maybe even consider post operative therapy. Best 2U! ...Read more

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What does ca 125 level 600 mean?

High: It's quite elevated, why was it done? Your doc needs to discuss this results with you in the context in which it was ordered. ...Read more

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I had the ca-125 test done and it came back with a level 25. Should i be concerned?

Yes and No: Ca-125 is a test for follow-up after diagnosis and with the treatment of ovarian cancer. It is elevated in many other diseases.The test should not be used for a fishing expedition because it would be misleading and concerning for a patient like you. Why was the test done in the first place? Do you have cancer? In any case a 25 level could be normal? What was the normal range.In the lab? ...Read more

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Should ca-125 be within normal range (<35) for a healthy person or should it be zero?

Should ca-125 be within normal range (<35) for a healthy person or should it be zero?

Ca 125: The "normal" ca125 was established for post-menopausal women at <35 (any value 0-35). Most premenopausal women will also have values in this range but not always since there are many benign reasons it can fluctuate. Some "healthy" women of all ages will have a level above 35! this is one of the reasons it is not effective as a screening test. ...Read more

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What happens if ca 125 is normal .am I free from cancer?

I wish: CA 125 is elevated in some, but by no means all, ovarian cancers, and in enough healthy people to make it not very helpful as a screening test. It's also normal in the vast majority of people with cancer elsewhere. ...Read more