Doctor insights on:
Blood Screened Syphilis
Why is the blood supply screened for syphilis when syphilis is not transmitted via infected blood?
Blood can transmit: Blood contact very rarely can transmit syphilis. It probably requires much more blood than possible during sexual exposure, shared needles, etc, but transfusion can do it, especially with non-refrigerated blood products. It's extremely rare and even without testing, probably there would be few if any cases, at least in the US. OTOH, testing is easy, cheap, and ingrained by history and habit.See 2 more doctor answers
What could be the reason that the blood supply screened for syphilis if syphilis is not transmitted via infected blood?
Syphilis is said to be transmitted sexually, via contact with an infected sore. If that's the case, why is the blood supply screened for syphilis?
Your doctor: Your doctor can order a blood test and most hospital labs are capable for performing the test. A community health clinic may offer the service.
Syphilis: Signs/symptoms of Syphilis may occur anytime from 3-90 days after exposure, though usually around 3 weeks. The blood test will likely be positive in this time frame. Many people are infected, however, and have no symptoms at all.
Weeks to months: Testing for syphillis relies on both non-specific tests that can be falsley +or - and more specific germ tests as backup. A + or rising level of a screening test is confirmed by a germ test. The most specific test is finding the germ in material from a lesion. Since transmission ~30% per contact with an infected source, a single dose of penicillin is often given as early as exposure is suspected.See 1 more doctor answer
Not possible: No.Get a more detailed answer ›
Yes it can: The TPHA test (Treponema pallidum hemagglutination) is a confirmatory test for syphilis. Usually it is done only after a positive screening test, such as the VDRL, RPR, or an EIA test. If you have had negative results on one of these plus the TPHA, you can be 100% certain you don't have syphilis and probably never did.
Yes: Syphilis is transmitted by skin to skin contact with an infected sore called a chancre. Over time the organism causing syphilis ( a spriochete) circulates through the blood stream of the host causing problems throughout your body. It is not passed by blood though from person to person.See 1 more doctor answer
When you have a syphilis lesion would the blood test be able
To detect syphilis in blood by then?
No: Primary syphilis is a painless ulcer on the genitals. Generally available tests do not become positive for two to six weeks. Experienced physicians can diagnose clinically and treat.
Would 28 days after exposure syphilis blood test be accurate and when you have a lesion does that mean syphikis is detect. In blood?
May be: The test for syphilis may be positive 28 days after exposure, but a negative result would not rule infection and you should repeat the test in three months. It would be prudent to see your doctor immediately if you have a lesion.
I took an at home syphilis blood test, and I want a second opinion on wether it's positive or negative. Attracted are photos of the test
Second Opinion: You can get a second opinion through the Health-Tap Prime service. It will allow you to upload your results and have a live doctor look at them. (Thats not an option on this public forum.) Best wishes!
How soon does syphilis show up in a blood test?There are diff names for certain tests, does it matter what test?Do they detect all in same time frame?
Syphilis: Usually within the first six weeks after a possible exposure. Syphilis is unique in that when one is infected in their mouth, vagina or rectum they may miss the first stage of syphilis because the sore it causes does not hurt. If one has an unexplained sore in this scenario then testing definitely should happen. But, in general six weeks.