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Doctor insights on: Causes Of Positive Ana Test

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What causes positive ANA results?

What causes positive ANA results?

Possibly normal: Up to 5% of healthy people may have a low titer ana. Lupus and other autoimmune diseases and sarcoidosis are possiblities. Diagnosis is on the basis of associated findings, not the ANA by itself. ...Read more

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Ana (Definition)

An "ana" is a blood test used to screen a person for the possibility of several autoimmune diseases. It is important to remember that this is a screening test and a positive result only indicates more testing may be warranted. No blood test is perfect, and getting to a diagnosis is usually much more complex than drawing blood and looking at a number ...Read more


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What are the causes of a positive ANA test result?

What are the causes of a positive ANA test result?

Many: ANA can be positive in many diseases and in many apparently healthy people. By itself , it does not mean much other than pointing to a higher but not certain risk for an individual to develop an autoimmune disease. ...Read more

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What causes false positive HCV antibody test results?

What causes false positive HCV antibody test results?

Misinformed?: Who told you that your hep c test was false? If you have no viral load that means you cleared an infection. Are you sure you are getting the right advice? ...Read more

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What could a positive ANA of 1:640 speckled indicate if lupus and rheumatoid arthritis tests are negative?

What could a positive ANA of 1:640 speckled indicate if lupus and rheumatoid arthritis tests are negative?

Need more testing: ANA is a screening test. A positive result only indicates more testing might be needed. The speckled portion of the result is not very helpful on its own. About 5% of humans (1 in 20) have a positive ANA for no reason. ...Read more

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What are causes of false positive drug tests?

Positive drug tests: You have taken something that shows up with the test used. Discuss with your tester as there are many different tests. ...Read more

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What causes a false positive rpr?

What causes a false positive rpr?

Lots of things: Having lupus, being middle-aged or elderly, lyme disease, or just dumb luck. Some say even pregnancy can do it. Glad it was a false-positive -- syphils is still a real nuisance. ...Read more

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Would a negative ANA rule out lymphoma? Does lymphoma cause a positive ANA test result?

It does not: At your age, if you have lymphoma it's probably Hodgkin's. ANA really has nothing to do with malignant lymphoma. If you're worried about big lymph nodest, trust me -- lymphoma nodes are obviously very abnormal. Best wishes, and I hope you'll always stay actively involved with your health. ...Read more

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What does a high positive ANA ifa test and negative choice antibody test mean?

See details: I have never heard of a choice antibody test. I positive ANA must be evaluated in the context of the clinical picture. It is a screening test for lupus but can be positive in numerous other diseases and often in people without any disease. ...Read more

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What causes false negative results in a methacholine test?

What causes false negative results in a methacholine test?

True or False Test?: A "false negative" test means the presence of a "confounding variable" that invalidates the test because it nullifies a test that would probably be positive if the variable were absent, like a brochodilator medicine (e.g.various inhalers and pills for asthma). So the test should be done in the absence of those medications, if possible-or-used as a validation as to the medication's effectiveness. ...Read more

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Can ANA test be false negative for lupus?

Can ANA test be false negative for lupus?

Lupus: Has specific criteria for diagnosis, ANA is just one of them and canot be relied on by itself for a diagnosis. ...Read more

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What causes false positive ALT result?

No such thing: If the alt is elevated, something's caused the enzyme to leak from your liver and/or skeletal muscles. Today's assays are reliable. But this does not necessarily means you are sick. It can be from the ultramarathon you just ran, or the Ibuprofen you took for the cold you're now better from. Your physician knows how to follow this up -- often just a repeat draw will lay concerns to rest. ...Read more

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Does a Positive ANA Antibodies, IFA test mean I could have an STD? What STDs are Positive ANA test? Is an ANA Antibody test a standard test for STDs?

Antinuclear antibody: Antinuclear antibody testing is useful for someone with signs and symptoms of an autoimmune disease - anemia, arthritis, kidney disease, inflammation of the heart and lungs. It is not a test for STDs. However, a test for syphilis, the VDRL, was once used as a test for autoimmune disease! Please call your doctor to explain your ANA. Usually they are of no medical significance. ...Read more

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I've had a strong positive ANA test result. All the various antibody tests are negative.. Symptoms are, joinfpain fatigue hive episode, fevers, etc. ?

Close but not there: Doesn't sound like you have a rheumatologic illness yet. You may develop one. If your ANA was positive at greater than 1:640 you should be monitored every six months for progression of symptoms if not you should be monitored less often. ...Read more

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What do these mean? lupus anticoagulant weakly present at 1.30; positive ANA Test 1:40 speckled pattern; negative anticardioliptin and beta2

Not much: A weakly present lupus anticoagulant and an ANA of 1:40 are common in the general population, and usually not an indication of an autoimmune disorder. You should visit with the physician who ordered these tests to review them with you however. A test alone does not give any answers. Doctors will need both a patient's history and tests to determine further management. ...Read more

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Would having rheumatoid arthritis cause a false positive ELISA HIV test?

Would having rheumatoid arthritis cause a false positive ELISA HIV test?

Unlikely: Depending on the type of test the lab does having. Positive rheumatiod factor would not cause a positive HIV test . It is best to discuss with your physician. ...Read more

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Can syphilis cause a positive ANA test?

No: However lupus can cause the screening test for syphilis (the rpr) to be falsely positive. ...Read more

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What is the test result range for both negative & positive for HSV antibodies IgM & igg? Ex. <0.9 ... Etc

What is the test result  range for both negative & positive for HSV antibodies IgM & igg? Ex. <0.9 ... Etc

Differs by lab: What you are asking is for the normal "reference ranges" for these tests. Reference ranges are established by each laboratory based on their testing equipment and vary from lab to lab. There is no universal reference range for these or other lab tests. You would need to ask for the range at the lab where the tests were run. ...Read more