Your doctor may test your spinal fluid if they suspect that your infection has spread to your brain. You do not have to stop taking medicines or fast before the test unless stated by your doctor. If your blood sample test shows negative, then your blood does not contain syphilis antibodies, and you are not infected with the bacteria.
If your test shows positive results for syphilis antibodies, you may have syphilis. However, your doctor will recommend another test called the treponemal test to confirm your result. This test is performed to check whether your immune system has produced specific antibodies as a result of coming in contact with the syphilis-causing bacterium.
The VDRL test may not be accurate in some cases. Your body requires a long time to produce syphilis antibodies. You may get false-negative results if your body has not produced specific antibodies even if you have the infection. False-positive results are possible if you have:. The antibodies produced as a result of a syphilis infection can stay in your body even after your syphilis has been treated. This means you might always have positive results on this test.
The risks of a blood draw are fairly minor. You might have slight issues like mild pain during the blood draw or minor bruising or bleeding afterward. Developing a serious problem from a blood draw, such as inflammation of the vein or an infection, is rare. A rapid plasma reagin test is used to screen you for syphilis. It detects the antibodies that your body produces to fight the infection.
Secondary syphilis is the second stage of this highly contagious sexually transmitted infection. Learn about the symptoms and treatment options. Neurosyphilis is a life-threatening infection of the nervous system, specifically of the brain and the spinal cord. It can occur if syphilis isn't…. Coronary artery disease reduces blood flow to your heart. Learn how to recognize coronary artery disease symptoms, how to manage the symptoms, and….
Understanding the risks and knowing the signs of common STDs is crucial for men who are sexually active. Learn how to spot the main symptoms. Health Conditions Discover Plan Connect. Overview: The venereal disease research laboratory VDRL test is used to detect if a person has been infected with the bacteria causing syphilis, which is a sexually transmitted disease. The possible symptoms include: A small painless sore Swelling in the lymph nodes near the sore Skin rash that does not cause itching When to Avoid: There is no specific condition as to when this test should be avoided.
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