Top
20
Doctor insights on: Igenex Lyme Test

Share
1

1
Tested positive for Lyme disease IgM but my western blot test came back negtive?

Tested positive for Lyme disease IgM but my western blot test came back negtive?

Then it's not Lyme: Lyme disease can be tricky -and you want to make sure you see someone like an Infectious Diseases doctor who knows how to treat it. The diagnosis is actually based on clinical findings, and the lab testing is generally 'supportive'. Since you're Western blot is negative, then it's very unlikely you have Lyme. There are other diseases that could cause 'Lyme-like' symptoms -and good to get evaluated ...Read more

Dr. Randy Baker
660 doctors shared insights

Lyme Disease (Definition)

A tick-borne illness caused by the bacterium borrelia burgdorferi that results in symptoms of fever, headache, fatigue, and a characteristic skin ...Read more


2

2
Positive HIV screener test at blood donation... Negative IFA and Negative NAT... False positive?

Positive HIV screener test at blood donation... Negative IFA and Negative NAT... False positive?

Yes: The initial screening test for HIV is very sensitive, but not very specific. The back up screening tests are much more specific for HIV. ...Read more

3

3
Can an HIV antibody screening test be positive but the western blot negative?

Can an HIV antibody screening test be positive but the western blot negative?

Yes: There are 2 reasons for this kind of result: (1) a false positive, or (2) early infection before seroconversion. In someone at low risk for HIV without symptoms, another negative WB in 1 month means there's no infection. In someone at risk or with symptoms of acute infection, a viral load can be helpful. The new 4th generation antigen/antibody tests will eliminate this problem. ...Read more

4

4
Tested false positive ELISA HIV test last month. Negative ifa and western blot and naat. 2 negative oraquick all 1 1/2 year post exposure. Hiv?

Negative: If nat was negative at 6 months after exposure you not likely to have hiv. Given all the negative test results, you should not worry about the one apparently false positive. ...Read more

5

5
Ana screen, ifa positive a (negative) means?

Ana screen, ifa positive a  (negative)   means?

Nothing by itself: One person in four tests positive. The vast majority of these people have no problems. The clinical picture is key, and how high the titer is may be helpful. ...Read more

7

7
2009- ELISA HIV test- positive, western blot- neg. 2010-oraquick negative. 2014- elisa-indeterminate wb- neg. Low risk for hiv. Could I have lupus?

Not a test for lupus: The HIV test is not a test for lupus. What's clear is that you don't have hiv. You'll never know why your elisa was positive and then indeterminate, and it's not worth investigating. False positive elisas are not uncommon; that's why they have to be confirmed with western blot. ...Read more

8

8
4 hsv-2 type-specific IgG tests.1 partner for all. 1st=negative. 2nd test @7mo.=positive 3.3igg. 3rd test @11mo=negative. 4th test@21mo. = negative?

4 hsv-2 type-specific IgG tests.1 partner for all. 1st=negative. 2nd test @7mo.=positive 3.3igg. 3rd test @11mo=negative. 4th test@21mo. = negative?

Lab Error: I would chalk this up to lab error, but in my patients we do not leave it there. There is a much better and more valid test to be done called a western blot test for herpes. This definitive test should have already been offered to you so that you can know for a fact whether you have herpes or not. ...Read more

10

10
Is hiv-1-pcr quantitative and HIV RNA PCR quantitative same tests?can DNA PCR test be quantitative?

Is hiv-1-pcr quantitative and HIV RNA PCR quantitative same tests?can DNA PCR test be quantitative?

HIV testing: Yes. Viral testing can be qualitative or quantitative. Most HIV RNA testing is quantitative. ...Read more

11

11
Hiv 7months ELISA test negative 100% accurate?

Hiv 7months ELISA test negative 100%  accurate?

No: If positive, it will be followed up with a confirmatory test. If negative, you are almost certainly okay but if you are very worried you might be able to pay for a pcr assay, which is the gold standard. ...Read more

13

13
Can a positive Lyme disease western blot strip test be mistaken for another disease?

Can a positive Lyme disease western blot strip test be mistaken for another disease?

Yes!: No lab test is perfect, including the westen blot for lyme. There is an approximately 4% chance of a positive being a "false positive" test. There is also an approximately 20% chance of false negatives, someone with lyme not having a positive western blot. This is why lyme is ultimately a clinical diagnosis, with labs used to support a diagnosis. Other tests may also be useful. Please see comment:. ...Read more

16

16
What would cause a positive Lyme titer but negative western blot?

see details: The lyme titer is nonspecific and can be positive by itself if the presence of other autoimmune diseases, viral infections or a history of lyme in the distant past. I negative western blot rules out active lyme disease. ...Read more

17

17
Is an IgG positive Lyme test a risk?

Is an IgG positive Lyme test a risk?

Lyme disease: Lyme diagnosis is made on one's history, exposure to tick that carry lyme disease in the setting of typical signs and symptoms . If a doctor confirms the typical bulls-eye rash lab testing is not required for diagnosis. Igb g positive indicates potential infection with lyme disease and may be present even after the infection has resolved and should be utilized in conjunction with clinical featue. ...Read more

18

18
Av test positive .Ra factor positive .Joint pain .Ccp antibody test negative.Raised esr.Plz diagnose my disease.

Av test positive .Ra factor positive .Joint pain .Ccp antibody test negative.Raised esr.Plz diagnose my disease.

Cannot diagnose: Although these lab values are interesting, taken out of the context of your symptoms and findings on physical examination, plus further testing there is no way in which to diagnose over the internet. See a rheumatologist and get appropriately assessed. ...Read more

19

19
Is a four week negative HIV antibody test / negative PCR test reliable?

HIV diagnosis: Antibody titers have been reported to be delayed as long as six months, but this is very unusual. A negative pcr for viral RNA is virtually determinative of the absence of infection. ...Read more

20

20
Whats a reliable test for Lyme disease?

Western Blot Analysi: A western plot analysis which looks at at least 5 and sometimes 7 individual preciptins. You must have three positive for a definitive dx. ...Read more

See 1 more doctor answer