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Doctor insights on: Ca 125 False Positive

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What does false positive diagnos on lupus mean?

What does false positive diagnos on lupus mean?

ANA positive: I see two to three patients per week that have a positive antinuclear antibody (ANA) but do not have lupus. The ANA blood test is very sensitive meaning that if you have lupus, the blood test comes back positive. However, it is not specific meaning that if the ANA is positive, you may or may not have lupus as there are over thirty causes of a positive ana. Normal people can have a positive ana. ...Read more

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Dr. Krishna Kumar
128 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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Can pregnacy test give you a false postive than 3 negatives?

Can pregnacy test give you a false postive than 3 negatives?

Sure: The pregnancy tests available over the counter are accurate over 98% of the time, but occasionally false results do occur. ...Read more

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What will give me a false positive pregnacy test?

What will give me a false positive pregnacy test?

False pregnancy test: Home pregnancy tests are generally speaking quite reliable and accurate. And they are the same test that are used by physicians in an office-based test. False positive test results are exceedingly rare. If you got such a result the best thing to do is either to repeat it or to see a physician and explain what happened. Your doctor may then order a blood test for pregnancy. ...Read more

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I have antibodies that produce positive ANA screening and false positive syphilis screening. What does that mean?

I have antibodies that produce positive ANA screening and false positive syphilis screening. What does that mean?

Nothing really: False-positive syphilis screens (the old vdrl assay) are fairly common especially in folks with lupus or who are simply middle-aged or older. Plenty of healthy folks have them. I would not draw any further conclusion. ...Read more

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What can cause false positives on a ANA test im just concerned and don't want a false positive?

See below: They can occur for a variety reasons such as having a current or chronic infection. However; anas can have positive results and these can occur due to the type of the assay that was performed and can vary from different laboratories. It is is up to your rheumatologist to determine whether or not it is a false positive. ...Read more

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Can Levetiracetam give me a false positive reading on an ETG test ?

Can Levetiracetam give me a false positive reading on an ETG test ?

Keppra (levetiracetam): Ethyl Glucuronide alcohol test false positives have been reported with Anti-seizure medications such as Keppra (levetiracetam) & Neurontin. ...Read more

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Can miso soup cause false positive on etg urine test?

Can miso soup cause false positive on etg urine test?

No: If you have had a false positive for alcohol (ethyl glucuronide) or a drug abuse, and you know you did not use any drug, get a lawyer. Labs do make errors. There are a few problems with the ethyl glucuronide test. Or you may have an enemy who spiked your food. I'm sorry if this has happened. Good luck with this. ...Read more

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Does clotrimazole make a false positive pregnancy test?

Does clotrimazole make a false positive pregnancy test?

Clotrimazole/pregnan: No. Clotrimazole will not give you a positive pregnancy test. Have your obgyn run some blood test and perform an ultraosund to rule out pregnancy. ...Read more

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What do these results mean? Stage3a weak positive er,weak positive pr, negative her2?

What do these results mean? Stage3a weak positive er,weak positive pr, negative her2?

Breast Ca: I am assuming you or someone you know was diagnosed with a breast cancer recently. Stage 3A mean that there is more involvement of the lymph nodes than earlier stages or a large primary breast tumor with only a few nodes). The ER and PR status is important so that hormonal treatment can be given. HER2 negative means that no antibody to that protein is needed (Herceptin). Discuss this with her MD. ...Read more

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I had a negative ANA test but positive double stranded DNA test do I have lupus?

I had a negative ANA test but positive double stranded DNA test do I have lupus?

Not enough data: The diagnosis of luppus is made on the basis of clinical signs and symptoms confirmed by specific lab tests including the dna antibody. This antibody can also be positive in other auto immune diseases. Since you did not mention symptoms, there is no way to answer your question. ...Read more

Dr. James Lin Dr. Lin
2 doctors agreed:
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Went to doc. Had pregnant urine test. Positive. Blood test result: 4147 (#) <3 mlu/ml: neg 3-8 mlu/ml: may indicate early preg. What does it mean?

Dr. James Lin Dr. Lin
2 doctors agreed:
Went to doc. Had pregnant urine test. Positive. Blood test result: 4147 (#) <3 mlu/ml: neg 3-8 mlu/ml: may indicate early preg. What does it mean?

Here are someā€¦: I'm glad to see you have received such wonderful medical care; however, based on currently available information, it would be most logical to direct your current concern & question to the treating doctor for confirmation & counseling so to minimize potential confusion and anxiety, which commonly results from online inquiry. Of course, make sure to supply detailed Hx stressing sequence of events. ...Read more

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Hi,I'd hiv duo test on 14 28 35 49 56days 3rdgen test on 3months+1days,is it conclusion?anymore test I should wait? thanks!

Hi,I'd hiv duo test on 14 28 35 49 56days 3rdgen test on 3months+1days,is it conclusion?anymore test I should wait?
thanks!

Likely okay: If the duo test was negative at 56 days after exposure you essentially free of HIV. You may wish to repeat it one year after exposure to make sure. ...Read more