What does ABS mean in test?
Fluorescent treponemal antibody absorption test
| FTA-ABS Fluorescent treponemal antibody absorption test | |
|---|---|
| Purpose | diagnostic test for syphilis |
What does a positive FTA-ABS mean?
A positive FTA-ABS is often a sign of a syphilis infection. This test result will remain positive for life even if syphilis has been adequately treated. Therefore, it cannot be used to monitor the treatment of syphilis or determine that you have active syphilis.
What causes a false-positive syphilis test?
False-positive result may be seen in certain acute or chronic infections (e.g., tuberculosis, hepatitis, malaria, early HIV infection), autoimmune diseases (e.g., systemic lupus, rheumatoid arthritis), injection drug use, pregnancy, and following vaccination (e.g., smallpox, MMR).
What can cause ABS problems?
The most common ABS problems occur when sensors become contaminated with debris or metal shavings. Malfunctions also occur when sensor wiring becomes damaged, resulting in intermittent or no continuity.
Is the FTA-ABS a confirmatory test?
FTA-ABS is the most sensitive test in all stages of syphilis, and is the best confirmatory test for a serum reactive to a screen such as RPR or VDRL.
What does RPR Positive mean?
A positive test result may mean that you have syphilis. If the screening test is positive, the next step is to confirm the diagnosis with a more specific test for syphilis, such as FTA-ABS. The FTA-ABS test will help distinguish between syphilis and other infections or conditions.
What is syphilis total AB?
The syphilis total antibodies (IgG + IgM) screen is a new method relative to the RPR (rapid plasma reagin). The RPR detects non- treponemal antibodies (cardiolipin, cholesterol, and lecithin), whereas the new test detects IgG and IgM antibodies to T. pallidum proteins.
What is ABS failure?
The Brakes Lock Up The ABS system is specifically designed to prevent any wheel from locking up during heavy braking. So, when an ABS control module fails, you’ll likely notice it when you’re braking heavily. A bad ABS module can behave erratically, making your brakes lock up even under normal braking.
How long does FTA-ABS stay positive?
Your FTA-ABS test result will be positive for the rest of your life, even after you’ve been treated. There are two other skin conditions called yaws and pinta that may cause a positive FTA-ABS test result. Sometimes women with lupus can have a false-positive result.