Can HIV be misdiagnosed as mono?
While AIDS is caused by HIV, not everybody with HIV has or will develop AIDS. HIV can sometimes be asymptomatic, it can sometimes take a long time to show up, and if it does show up, it may be indistinguishable from influenza (the “flu”) or from mononucleosis (“mono”).
Can a rapid mono test be wrong?
Monospot tests can be false-negative about 10% to 15% of the time, particularly in the early stages of the illness. You stand an approximately 25% chance of getting a false-negative test result if you are tested within the first week of symptom onset..
What can cause false positive mono test?
False positive causes for Monospot tests include:
- Pre-analytical laboratory problem (the most common cause, usually because of the problems noted above)
- Infectious. Cytomegalovirus.
- Leukemia/Lymphoma (especially Burkitt’s lymphoma)
- Pancreatic cancer.
- Rheumatoid arthritis.
- Serum sickness.
- Systemic lupus erythematosus.
Can you get false-negative HIV test?
While many HIV tests are extremely accurate, they do not achieve 100% accuracy. A false negative is a test result that says a person does not have HIV when, in fact, they do. False negative results most often occur when people test in the first few weeks after infection, during the ‘window period’ of a test.
Can mono be misdiagnosed?
Mononucleosis is frequently mistaken for other illnesses, such as strep throat, chronic fatigue, or another infection, because the symptoms can overlap, Ramilo says.
Can mono tests be false positive?
In rare cases, the test is positive even though you do not have mono. This is called a false-positive result, and it may occur in people with: Hepatitis. Leukemia or lymphoma.
Can you get tested for mono antibodies?
The monospot test is done to help diagnose a recent mono infection. Epstein-Barr virus (EBV) antibody testing is also done to help diagnose mono. The EBV antibody test can help determine whether you have ever been infected with the virus and whether the infection has been recent.
What does a negative mono test mean?
If your EBV test was negative, it means you don’t currently have an EBV infection and were never infected with the virus. A negative result means your symptoms are probably caused by another disorder. If your EBV test was positive, it means EBV antibodies were found in your blood.
Can EBV test be false-negative?
A heterophile antibody test is the best initial test for diagnosis of EBV infection, with 71% to 90% accuracy for diagnosing IM. However, the test has a 25% false-negative rate in the first week of illness.
Can a positive monospot test be a false negative?
A positive monospot test accompanied by the symptoms of mono helps confirm a diagnosis of infectious mononucleosis. However, the CDC says the monospot test is no longer recommended because it produces too many inaccurate results. Monospot tests can be false-negative about 10 percent to 15 percent of the time,…
When do you get a false negative HIV test?
False negative results most often occur when people test in the first few weeks after infection, during the ‘window period’. After this, they are extremely rare. In most settings, the probability of a negative result being accurate is over 99.9%.
How long does it take to get results from Mono test?
Mono tests are used to help diagnose a mono infection. Your provider may use a monospot to get fast results. Results are usually ready within an hour. But this test has a high rate of false negatives.
Can you get mono from a different virus than EBV?
Furthermore, if you have mono from a different virus than EBV, such as CMV, the monospot won’t detect it. If your monospot test is negative but you have all the symptoms of mono, your doctor will likely repeat the test before doing more extensive antibody tests.