Doctor insights on:
Positive Vs Negative Correlation
ER PR + breast CA: Receptors are made by normal breast tissue.They allow the tissue to be responsive to the fluctuations in hormone levels in your body, like during your periods and when your pregnant.When a breast cancer is erpr positive this just means that the breast cancer is still acting like normal breast tissue.This is a positive thing in that the breast cancer is still organized, functioning normally. ...Read moreSee 1 more doctor answer
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
Blood tests negative for celiac, hla gene positive, biopsy positive. Could there be another cause for mucosal flattening?
Unlikely: The blood test is of secondary importance. It depends on what test you had, for instance the immunoglobulin a antibody to tissue transglutaminase may be negative if one already avoids eating gluten. Also, it is not very sensitive. The definitive test is the biopsy (not the gene, which does only show the likelihood of developing the disease. You probably have celiac disease. ...Read moreSee 1 more doctor answer
Depends on test used: The question really hinges on exactly what test was used (there are several), so you will need to discuss this in detail with your healthcare provider. Some HSV antibody tests have high rates of false positives and false negatives. You can read a discussion about some of the complexity with this question at https://www.statnews.com/2017/01/26/herpes-testing-false-positives/ ...Read more
Great question: I think dilute urine is the most likely source for false negatives. I am not familiar with other substances outside of the cannabinoid class of compounds (some of the newer synthetics?) that will react with standard immunoassays. If one is concerned, however, about a false positive there is confirmatory testing that can determine for sure whether it was a false positive or not. ...Read more
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
ANA positive SSA SSB weekly positive SCL weekly positive RNP SM weekly positive. Any implications? What are the differential diagnosis? WaDoes it mean
Pos auto ab tests: You are describing positive tests for auto antibodies. The differential diagnosis can be extensive. I am assuming a rheumatologist has ordered these tests? You need f/u with them to educate you what they mean, what further tests may need to be done and review your symptoms. Proper rheum DX is not based only on test results, but exam findings and symptoms of patient. Good luck. ...Read moreSee 2 more doctor answers
3 hep c antibody screen tests done. First low positive, 2nd two neg. thoughts? Could the two negatives be false negatives?
ANA via ELISA 74 units, strong positive (negative via IFA)
Anti-Cardiolipin IgG 22 CU, moderate positive
Short answer is : Needing more info on labs and clinical symptoms. ANA positive is sensitive for possible autoimmune disease.but not very specific. Every lab on your ENA panel is important esp they are moderate positive and they all mean something different. Lab is never enough for diagnosis esp rheumatic condition. It is important for you to find a rheumatologist for thorough history and physical exam. ...Read more
2 indeterminate syphillis screenings, no result for rpr test, urinalysis showed 2+ protein. Is there any correlation between these lab results??
Pcr blood test for hsv1 & hsv2 both negative 7 weeks post exposure. Is this a reliable test vs igg antibody testing?
No: No it would not.Get a more detailed answer ›
Auto-immune response: Rheumatoid factor is one of the auto-immune responses, however, it may also develop as a some what normal respose to infection. Any lab test needs to be evaluated in the context of the whole clinical picture and a positive rheumatoid factor, by itself, is not diagnostic of any disease. It supports a diagnosis rheumatoid arthritis and other auto-immune disorders. ...Read more
Prime doc says positive rnp, rheumy says negative ana, and false positive for mctd. No symptoms but hashimotos. Does this sound conclusive?
See below: There a lot of false positive rnps. There are certain criteria that must be met to be labeled with mctd. If your rheumatologist says that is not consistent with mctd, he or she may be right, but we cannot comment definitive without performing an exam and reviewing your history and labs. ...Read more
I tested positive/treated for strep 5x (rsat), little/no symptoms. Last test was positive, culture was negative. What causes false positive results?
Latent infection?: Some people have recurrent MRSA (multiply-resistant strep aureus) infections that are treated successfully and recur. There is a possibility that they (or you) could be harboring strep in your nose. The sinuses don't have great blood flow, and so may potentially "hide" bacteria. This could explain your odd results. Put bactroban (mupirocin) up your nose daily as a preventive measure, and see what happens. ...Read moreSee 1 more doctor answer
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