Doctor insights on:
Rnp Antibodies Positive
If I have a high positive ANA (1:640) speckled, nucleolar and low positive SMA (1:40), what further tests do I need to do? (Negative SS-A, SS-B, Smith, RNP, SCL-70, Anti Jo Abs)
? anti dsDNA: You've probably already had these more basic tests: complete blood count, sedimentation rate, C-reactive protein, urinalysis & rheumatoid factor. It appears to me that the ANA results with slight positive anti-Smith may suggest lupus; you need an antibody to double-stranded DNA (anti dsDNA) which is very specific & somewhat sensitive for lupus.All this needs to be correlated by your doc/specialist ...Read more
Went to dr with hand, shoulder, hip joint pain. Ana reflex screen Ana positive 1.0 and rnp antibody positive 4.3. All others neg. Very scared!
Lab numbers: These numbers don't show changes at joints and with most auto immune disorders, you may have periods of pain and increased lab numbers, usually related to stress in your life, and once treated medically or with stress reduction, pain/lab should improve. May want xray of one of involved joints just inflamed which can return to baseline. ...Read more
I'm having negative DNA ,Sm and Rnp antibodies, but positive sm/rnp antibody,and high ANA titre speckled,so what is the diagnosis ?
Lupus: These serologies are rather non specific. The speckled ANA is non specific. In Systemic Lupus Erythematosis (SLE) it is usually homogeneous in its staining. Anti-Sm and Anti RNP can be see in mixed connective-tissue diseases and overlaps with SLE, scleroderma and myositis. As often is the case a specific diagnosis cannot be made. You need to see a Rheumatologist. ...Read more
Sm/rnp antibody- ANA choice- positive, speckled/titer: 1:1280; sm & rnp (done alone) negative; sm/rnp antibody (together?) positive 3.0 guessing mctd?
Heads up: One of the things that's frustrating about these antibody tests looking for different connective tissue diseases is that they are difficult to do and are fraught with pitfalls. I suspect you've had at least one lab error to complicate your workup. Have you have a tube test for u1-rnp? Your clinical symptoms and signs actually tell more about your diagnosis ; best direction for treatment. ...Read more
FALSE POSITIVE RNP: It is possible we need to know what your symptoms and signs are, and why the tests have been ordered.The lab test apways have to be interpreted along with complete clinacal findings if you have signs and symptoms of lupus, high ana, and doctor ordered rnp to confirm the diagnosis and it comes out positive.That in all probabilities is positive and not false positive. ...Read more
What could a negative ANA and positive RNP antibodies mean? I have a history of chronic rheumatological symptoms, but my dr is not convinced its MCTD.
Lab problem: The ANA screening test is fraught with pitfalls, and if you have a way-high titer of U1-RNP on the tube test and symptoms / signs of mixed connective tissue disease (which is a rough thing) but ANA is negative, perhaps there's a problem with the substrate. Your physician will want to call the lab's pathologist -- he / she would be interested in knowing. Best wishes. ...Read more
My lab tests came back with a positive ANA and a positive rnp antibodies...Is this considered abnormal readings?
Yes: You need to see a rheumatogist.Get a more detailed answer ›
Specific to patient: The test by itself is not diagnostic.. It depends on your evaluation, examination, clinical factors are the most pertinent. The lab reports are guidelines but not diagnostic in themselves. ...Read more
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