What does indeterminate mean on Lyme test?
What does indeterminate mean on Lyme test?
Indeterminate: Presence of one specific antibody to Bartonella antigen(s) detected. Negative: No specific antibody to Bartonella antigen(s) detected. Disclaimer: This test was developed and its performance characteristics determined by IGeneX, Inc. It has not been cleared or approved by the FDA.
What are bands in Lyme disease testing?
Some Lyme specialists and scientists believe that there are five very specific bands on the Western blot test that are highly indicative of Lyme disease: band numbers 23, 31, 34, 39 and 93. If any of these bands are positive and the patient is experiencing symptoms of Lyme disease, they may feel treatment is warranted.
What is the difference between Lyme IgG and IgM?
IgM antibodies usually peak within a few weeks after an infection with Borrelia bacteria and start to collapse 4-6 months after infection. IgG antibodies are slower to develop, beginning to show 4-6 weeks after exposure and may peak 4-6 months after exposure.
How often is a Lyme disease blood test positive?
You may have heard that the blood test for Lyme disease is correctly positive only 65% of the time or less. This is misleading information. As with serologic tests for other infectious diseases, the accuracy of the test depends upon the stage of disease.
What are the clinical practice guidelines for Lyme disease?
The scope of this guideline includes prevention of Lyme disease, and the diagnosis and treatment of Lyme disease presenting as erythema migrans, Lyme disease complicated by neurologic, cardiac, and rheumatologic manifestations, Eurasian manifestations of Lyme disease, and Lyme disease complicated by coinfection with other tick-borne pathogens.
How long does post treatment Lyme disease last?
For those who are treated with antibiotics, a condition called PTLD [Post Treatment Lyme Disease] occurs that mimics the symptoms of the disease for up to 6 months. In regions where Lyme disease is not prevalent, it is usually up to the patient to insist on receiving the Lyme disease blood test.
When to do a pretest for Lyme disease?
When pretest probability is moderate (e.g., a patient from a moderately endemic area with objective clinical findings), laboratory testing should be performed by means of the two- step approach.