the clumping together in suspension of antigen-bearing cells, microorganisms, or particles in the presence of specific antibodies ( agglutinins). ANCA Vasculitis. R76. Symptoms of measles include congestion, cough, fever, and a rash all over your body. A negative CSF test usually means EPM is not the cause of disease. CTPSR. All newborns showing fourfold rise in titer compared to that of their mothers. 16 IU/mL). Last updated. Reference values vary based on several factors, including the specific laboratory that supplies them. The manifestations of CMV in immunocompetent and immunocompromised patients are also. Pronunciation Guide. 1. The titers of samples with reactive results are first determined at 1:1. The damage may prevent your body from absorbing vitamins, minerals, and other nutrients from the food you eat. Applies only to results expressed in units of measure originally reported by the performing laboratory. Background Antinuclear antibody (ANA) is a common test for excluding alternative diagnoses. Antistreptolysin O (ASO) titer is a blood test to measure antibodies against streptolysin O, a substance produced by group A streptococcus bacteria. burgdorferi ), the bacterium that causes Lyme disease. The titers are diluted in series in phosphate-buffered saline (PBS) to achieve an endpoint titer at a maximum of 1:16 dilution. Rarely, as mentioned above, a recently infected horse will show clinicalThe titer gives information about how many times the lab technician diluted the blood plasma to get a sample of ANAs. Smooth Muscle Ab Titer, S. It is sometimes also used to screen women of childbearing age before the first pregnancy . Antibodies to blood groups A and B and to some bacterial polysaccharides are selectively deficient in. RPR Screen w/ Reflex, S. One way of mitigating this risk is to use WB units from group O donors who have a low titer of IgM and/or IgG anti-A and -B, thereby creating LTOWB, which can be transfused universally to any recipient with the minimal risk of hemolysis. The word "titer" refers to a unit of measurement used to determine the concentration of antibodies in a. This test is important because a single antibody class is. Acquired hemophilia A is a rare bleeding diathesis caused by autoantibodies directed against clotting factor VIII and associated with an increased morbidity and mortality. Providers also call this test a serology test. It is a valuable resource for health care professionals, educators, and students who want to learn more about the benefits and challenges of immunization. Antistreptolysin O Titer is a blood test used to determine if you have an infection caused by a group A streptococcus bacteria. A titer of ≥1:32 or a 4-fold rise in antibody titer from acute- to convalescent-phase serum is strongly suggestive of active infection . a measurement of the concentration of a substance (= how much of it…. 1 AU/mL). rubella titer: Etymology: L, rubellus, somewhat red; Fr, titre, standard a serological test to determine a patient's state of immunity against rubella. All of these terms will be explained here, including how the disease works and what we can do for it. 4 min read. : a measure of the concentration of a substance (such as an antibody) in a blood sample that is obtained by subjecting the sample to serial dilutions (as with saline) to determine. What does a measles titer test detect? A titer test is a blood test that checks for the presence of certain antibodies in the bloodstream to determine whether you’re immune to a specific disease. My problem is I don't know how to pronounce Titer - the blood test? The Use of Low Titer Group O Whole Blood in Emergency Medicine. Hemolyzed blood samples are unsuitable for. Cold Agglutinin Titer. An antibody titer is a type of blood test that determines the presence and level (titer) of antibodies in the blood. How to Prepare for the Test. An antibody test looks for antibodies in your blood. (2006). An antibody titer is a measurement of how much antibody an organism has produced that recognizes a particular epitope. titer: [ ti´ter ] the quantity of a substance required to react with or to correspond to a given amount of another substance. An immunoglobulin (im-yeh-no-GLOB-yeh-len) test measures the level of types of antibodies in the blood. The result may be reported as a titer. However, the relationship between blood CrAg titer and concurrent cryptococcal meningitis has not yet been systematically investigated. A blood titer is a special blood test that checks if you are immune to a specific disease. That means, for LabCorp at least, "until you reach 250 units/mL, you have little evidence of neutralization," he added. This blood test can determine if your body has created an immune response. Upon receiving results, MinuteClinic providers can follow-up to review titer results and offer vaccination services if indicated. More Information. The most common defects of Congenital Rubella Syndrome are as follows: –. How to say titer. Feline infectious peritonitis (FIP) is a viral disease of cats caused by certain strains of a virus called the feline coronavirus. doi: 10. In the case of the blood titer, the “titer” refers to the qty of a specific model of antibody (a special family protein) in ampere gives audio of blood. How to Prepare for the Test. ” Tropical Doctor 36(1): 32-34:. ANA by IIF is generally reported with both a titer and a pattern. If titer is ≥ 1:80 a titer and pattern will be reported. "When you get to 500 or 1,000, it rises in a linear fashion," Segev told. Follow-up. While healthy antibodies protect the body from pathogens like viruses and bacteria, autoantibodies cause disease by mistakenly attacking healthy cells and tissues. An ANA blood test (antinuclear antibody test) is usually performed on a blood sample as part of the diagnostic process for certain autoimmune diseases. 10/17/2018 Christa A. With CAD, your immune system releases an autoantibody, or “cold agglutinin,” that attacks healthy red blood cells. SARS-CoV-2 is the virus that causes COVID-19. Definition of Antigen. Systemic lupus erythematosus (SLE) is an autoimmune disease that affects multiple organ systems. Significant differences in the interpretability of anti-A/-B titers were observed among different methods. The antibody level (titer) in the blood tells your health care provider whether or not you have been exposed to an antigen, or something that the body thinks is foreign. Keep reading to learn more about high and low IgM levels and the factors that may affect them. An RF test is a blood test that can help diagnose rheumatoid arthritis. , from 1:16 to 1:4 or from 1:8 to 1:32), is considered necessary for demonstrating a clinically significant difference between two nontreponemal test results obtained by using the same serologic test, preferably from the same manufacturer to avoid variation in results. In RFFIT, the serum (the non-cellular portion of blood) is first diluted fivefold (1 part serum in 4 parts diluent). Once we determine if there is an incompatibility between the mother’s blood type and the fetus’s blood type (or if we are not sure), we follow the titers by testing maternal blood regularly throughout the pregnancy. 1 Longitudinal change in antibody titers of 39 COVID-19 patients. Antibodies to the ribonuclease-resistant Sm component of extractable nuclear antigen (anti-Sm antibodies) and to double-stranded DNA (negative in MCTD by definition) are measured to exclude. e7 Health offers Blood Titers for the following and more: e7 Health is supervised and operated by Board Certified doctors and clinicians. microti IgM antibody are suggestive of active or recent B. A negative titer, or normal range, is considered to be a dilution less than 1:20. Promotion Code: ULTAIT20. HIV viral load tests are used to monitor the progress of your HIV infection and how well. 0 may differ. What does titer mean? Definition of titter (Entry 2 of 2) : a quiet or nervous laugh : an act or instance of tittering There were a few titters from the students. Easy. 30 per pack. These are referred to as feline enteric coronavirus (FeCV). Titers are typically expressed in terms of the highest dilution of a given sample that is still able to produce a positive reaction. Then I went to specialist and he ran more blood work, but nothing came up. The test results have to be interpreted after correlating with suitable clinical findings and. That's right. endobj 1394 0 obj >/Filter/FlateDecode/ID[300B640AC0704D429489AF72219E8F4E>5BA076816808584EB4FF853A754451A7>]/Index[1372 52]/Info 1371 0 R/Length 113/Prev 2291410. The substance may be from the environment or formed within the body. It is difficult to standardize the ANA test between laboratories. The titer that is reported to your veterinarian is the last positive dilution. The test is used to find out if you are immune to the virus after natural exposure or vaccination. Arefieva, MS, MSIV , Bryan Chen, MD , Theodore T. g. A single titer greater than the upper limit of normal suggests an antecedent streptococcal infection or high streptococcal endemicity in the community. capsulatum. dilution factor : dilution factor . etc. The ASO titer is positive, blood urea nitrogen and creatinine levels are mildly elevated, and the C3 complement level is low. Gold standard definition- N/A. tuberculosis, M. noun. Test results of 5. Blood samples were also taken to determine. 0 became effective on October 1, 2023. The “titer” part of “blood titer” is a technical term that, generally speaking, represents a concentration of something. Determine if suspected vaccine-related adverse events were caused by vaccine-strain VZV. A varicella titer, also called a varicella antibody titer test or VZV titer, is a blood test to check for your immunity to chickenpox due to previous vaccination or infection. ELISA is a common means of determining antibody titers. Hepatitis B surface antibodies (anti-HBs or HBsAb) are measured in blood samples in milli-International Units/milliliter mIU/mL). That means that t he higher the titer of the ANA test, the more autoantibodies are present in the sample. This chapter is an introductory overview of the most commonly used assay methods to estimate the number of viable cells in multi-well plates. (2) Detection of ANCA is a well-established diagnostic test. Cryptococcosis is a pulmonary or disseminated infection acquired by inhalation of soil contaminated with the encapsulated yeasts Cryptococcus neoformans or C. Current Titer of Previous Specimen. Syphilis has been stigmatized for hundreds of years. After separation, the serum will still contain antibodies. A titer above a certain level then qualifies as a positive test result. This fall in anti-HBs titer was mostly seen over a span of 5 years. The patient has poststreptococcal. For rubella, a positive test (which means the appropriate level of antibodies has been detected in my blood) is anything above 0. Dr. How the Test is Performed. Alternative Names. If you need a booster vaccine. 238K. Listen to the audio pronunciation in several English accents. CRS = Congenital Rubella Syndrome. Common areas include saliva from your mouth, mucus from your nose, blood, pee, amniotic fluid. During pregnancy, the test can show whether you have RBC antibodies that could attack your unborn baby's red blood cells, causing a very serious type of anemia in the baby. A titer may be used to prove immunity to disease. The titer test is done to prove immunity to a particular disease. Results. 0002) at the first surgical facility. Moreover, without treatment, the titer from nontreponemal tests generally remains positive at low titers or may revert to negative . A person given the tuberculin skin test must return within 48 to 72 hours to have a trained health care worker look for a reaction on the arm. If someone tests positive for these antibodies, then it is an indication that they have either had an outbreak of the disease or have received a vaccination against it. The anti-HBs titer <10 mIU/ml was more commonly seen in Group A (vaccination > 5 years) as compared to Group B (vaccination <5 years) (P = 0. The immune system makes antibodies to protect the body from bacteria, viruses, and allergens. New Test. If clinical signs are suggestive of toxoplasmosis, we recommend a recheck sample in 2 weeks to verify a rising IgM and/or IgG titer. While the majority of nontreponemal assays are Blood titer measurements can help determine medical treatment. MinuteClinic can treat over 125 different conditions. The acronym RFFIT stands for Rapid Fluorescent Focus Inhibition Test. The titer value of that sample is the inverse of the dilution, i. Hepatitis B is a viral infection that targets your liver. One important test is your HIV viral load test. Results can also be sent by fax or mail by special request. Support the diagnosis of Rubella virus infection. , 40. Effective Date. A rapid plasma reagin (RPR) test is one of the various tests that screen for a sexually transmitted infection (STI) called syphilis. Learn more. Viral Load Test. If the test is positive (above a particular known value) the individual has immunity. 12 Currently, there is no universally accepted definition of “low titer. In addition, we offer an array of other. Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. Pertussis, also known as Whooping Cough, is a respiratory infection that is typically spread when an infected person coughs or sneezes in close proximity to another person. You pay anywhere from $40 to $200 to get some numbers on a piece of paper. The. However, in certain scenarios, providers and their patients may choose to obtain serologic testing (“titers”) to evaluate measles immunity, rather than immediately giving the second dose of vaccine. 0095) when compared to tube titration. It works by detecting the nonspecific antibodies that your body produces while fighting the. Alternative Names. microti IgG antibody titer of ≥1:1024 or the presence of B. . 2 /5. The titers from nontreponemal tests are not. Learn more about this test, when it's needed, and what the results mean. : a measure of the concentration of a substance (such as an antibody) in a blood sample that is obtained by subjecting the sample to serial dilutions (as with saline) to determine the maximum dilution at which the sample retains a specific activity (such as neutralizing an antigen) and that is often expressed as a ratio (such as 1:200) Last updated November 04, 2023. Group O whole blood that contains low titers of anti-A and anti-B antibodies (low titer group O whole. Patients with documented infections have usually had titers ranging from 1:320 to 1:2560. The tests may also be used to check for certain antibodies that may be a sign of an autoimmune disease. The most common cause of hepatitis is a. How to say titer in English? Pronunciation of titer with 2 audio pronunciations, 5 synonyms, 2 meanings, 11 translations and more for titer. In cases of Salmonella infection, it is a. The measles titer test checks for the presence of IgG antibodies to measles in the blood. Antibody titer testing as a part of evaluating patients with chronic liver disease in whom the diagnosis. 0 - Raised antibody titer. Doctors measure the level of rheumatoid factor by performing a blood test. What does a measles titer test detect? A titer test is a blood test that checks for the presence of certain antibodies in the bloodstream to determine whether you’re immune to a specific disease. The geometric mean titer ratios for neutralizing titers in umbilical-cord blood ranged from 9. Collect 1-3 mls of whole blood, allow to clot, and separate the serum. e. Only one sample of blood is needed for a hepatitis B blood test, but the "Hepatitis B Panel" includes three parts. 0 NBU/BU or. It is also known as the Epstein-Barr virus antibody profile. Initial testing for acute infectious mononucleosis should include complete blood count with differential and a rapid heterophile antibody test. 2. A patient's blood test values should be interpreted based on the reference value of the laboratory in which the test was done; the laboratory typically provides these values with the test result. An antibody titer is a type of blood test that determines the presence and level (titer) of antibodies in the blood. A titer test is a blood test that measures the level of immune system proteins called antibodies. ANCA vasculitis is a type of autoimmune disease that causes vasculitis. 94875-2. A positive Double-Stranded DNA Antibody Blood Test may indicate lupus in 50-70% of cases, if preceded by a positive antinuclear antibodies (ANA) blood test. It checks for chickenpox antibodies (concentrations of IgG antibodies) in the blood. Learn more. bovis, M. The ENA test is used to help diagnose certain autoimmune diseases. You dilute one can of concentrate into four cans of water. Agglutination is the clumping that results when antibodies bind multiple carriers of an antigen (such as a host cell or a synthetic carrier). If a person tests “positive,” then further testing is needed to determine if this is a new. #2: 888-8: 006213: Antibody Identification: 888-8: 019836: Coombs Titer #2: 50970-3:A high antibody titer, a measure of concentration, like yours may not predict a strong cellular immunity. The amount and range of antibodies directly correlate to the strength of the body’s immune system. edu) Shot 1 Wait 1 month. It usually refers to the amount of antibodies found in a person's blood. A titer is obtained by doubling dilutions of the positive blood (1:4, 1:8, 1:16, 1:32 . Titer. The test checks the dog's blood for antibodies, a vital part of the immune system. The titer of the test is essential. Bookshelf ID: NBK547707 PMID: 31613487. DEXDP. In most cases, a positive ANA test indicates that your immune system has. When titers are positive, then an individual has an adequate level. The tuberculosis (TB) blood test, also called an Interferon Gamma Release Assay or IGRA, is a way to find out if you have TB germs in your body. Figure (PageIndex{5}): A viral suspension is mixed with a standardized amount of red blood cells. A celiac disease blood test looks for signs of celiac disease in a sample of your blood. This can lead to malnutrition, anemia and. (1) The disorder is now recognized as a spectrum of autoimmunity (termed NMO spectrum. 53935-3. A negative test is strong evidence against a diagnosis of SLE but not conclusive. 1 - Nonspecific reaction to test for tuberculosis. How to say titer. Do not use a gel-barrier tube. Antibodies are proteins created by the immune system to fight pathogens, such as viruses and bacteria. ALTIR. What Everyone should know about the MMR vaccine. In the human host, the parasites form tissue cysts, most commonly in skeletal muscle, myocardium, brain, and eyes; these cysts may remain throughout the life of the host. g. R76. Vomiting blood. In the case of hereditary alpha tryptasemia, people with this trait have inherited extra copies of the alpha tryptase gene (TPSAB1), and this leads to increased levels of trypase protein detected in the. The test measures the ability of antibodies that may be present in a sample to neutralize and block rabies virus from infecting the cells used in the test. No special preparation is necessary for this test. The antinuclear antibody panel is a blood test that looks at antinuclear antibodies (ANA). If the cold agglutinin titer does not reach this threshold, then again, a warm AIHA should be considered, as up to 67% of these can be positive for both anti-IgG DAT alone or anti-IgG and anti-C3d DAT [20,22,23]. Rheumatoid arthritis is a symmetric small-joint arthropathy affecting the hands, wrists, and feet and is associated with joint pain and morning stiffness. However, syphilis also can be acquired through vertical (mother-to-child) transmission, and congenital syphilis continues to be a global cause of infant mortality. A titer may be used to prove immunity to disease. Persistent Antibodies. During pregnancy, alloimmunization is most common when the fetus and mother have different Rh blood types. In these cases, an ELISA. SARS-CoV-2 is the name of the virus that causes coronavirus disease 2019 (COVID-19). A negative result means it found none. A positive anti-C3d should be followed up with a cold agglutinin titer. 14 Some centers attempt to mitigate this risk by performing screening titers. IgM antibody function can be assessed by measuring isohemagglutinin titers (anti-A, anti-B). You may hear different names or terms for this disease, including ANCA vasculitis, ANCA. 2 Typically, viruses can only infect a limited number of hosts, known as the host range. The result depends on the size of the raised, hard area or swelling. (1 Vote) Very easy. Some people don't have the classic symptoms but have measles antibodies in their blood. The body uses antibodies to attack and remove foreign substances. A Lyme disease blood test is used to determine if you have contracted Borrelia burgdorferi ( B. No agglutination of red blood cells is visible when the virus is absent, and the cells form a compact pellet at the bottom of the well. IgG =514 other workup normal so pneumococcal titers done. However, conditions such as infections,. 22446-9. A positive test doesn’t mean that you have an autoimmune condition. Container. Patterns reported include Homogeneous, Speckled, Nucleolar, Centromere, and SSA Ro. How to say: Titer #336863 11/14/15 01:30 AM 11/14/15 01:30 AM: Joined: Feb 2010 Posts: 2,377. Antibody titer is a laboratory test that measures the level of antibodies in a blood sample. S. Antibodies that react to HTLA characteristics cause difficulties in serologic testing because of the weak reactions they produce in the indirect antiglobulin test. 888-8. See examples of TITER used in a sentence. Rheumatoid factor (RF) is an immune system protein that attacks healthy cells in the body. The hepatitis B surface antibody test (HBsAb) detects proteins that are made by the immune system ( antibodies) in response to the hepatitis B virus (HBV). Your test is positive if it finds antinuclear antibodies in your blood. These non-self proteins are called antigens. In a patient with no history of lesion disease, a positive result for this test may be. Like other antibodies, they are produced by the immune system. The presence of IgG antibody generally indicates past exposure and immunity or immunization and immunity. Antibodies are proteins made by the body’s immune system to fight infections, viruses, and bateria. This test is carried out to investigate if there is an. CATTR. 0 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. ” Within the United States, “low titer” is. This is best explained by a “lock and key” mechanism as. Verb [ edit] titer (third-person singular simple present titers, present participle titering, simple past and past participle titered) To measure a concentration, especially by means of titration. 1 /5. Learn more. US spelling of titre 2. That means you have rubella antibodies in your blood and are immune to future infection. The varicella titer, also known as a varicella blood test, VZV blood titer, chicken pox titer, chicken pox test and varicella test, measures varicella IgG antibody blood levels to check for immunity. antibody titer: the concentration of antibodies circulating in the bloodstream of an individual. For tissue culture-adapted strains, the appropriate selection and processing of cell cultures is important for successful viral isolation, titer, and infectivity. a measurement of the concentration of a substance (= how much of it…. The presence of detectable levels of centromere. The varicella titer is also essential in identifying whether your immune system is. Antiglobulin testing, also known as the Coombs test, is an immunology laboratory procedure used to detect the presence of antibodies against circulating red blood cells (RBCs) in the body, which then induce hemolysis. Learn more. Useful For. cross agglutination the agglutination of particulate antigen by an. Celiac disease is a chronic (long-term) digestive and immune disorder that damages your small intestine. If a critical titer is reached or if the antibody is to Kell antigens, the pregnancy is followed with weekly ultrasounds. The anti-double stranded DNA (anti-dsDNA) tests are used to help diagnose and monitor lupus, also called systemic lupus erythematosus or SLE, a chronic inflammatory autoimmune disorder in which the immune system mistakenly targets the body’s own cells and tissues. Varicella zoster virus, which includes chickenpox and shingles. It’s a lab test that measures of the amount of HIV in your blood. Herpes IgM test results: A positive test result means that herpes IgM was detected in the sample. (those with titers >1:3200) and to support a diagnosis of purpura hemorrhagica or metastatic disease (titers >1:12,800). Definition. A titer is a laboratory test that measures the presence and amount of antibodies in blood. : an antibody produced by one individual that causes agglutination of cells (as red blood cells) of other individuals of the same species. Rubella antibody tests measure the amount of rubella antibodies in a blood sample to help diagnose a current or recent rubella infection. Redman, MD, MPH , Andrew D. , 1:16 is reported as 16). The result depends on the size of the raised, hard area or swelling. +--Can mean one of two things:The risk of hemolytic transfusion reactions (HTRs) is approximately 1:70,000 per unit. It. circulating tumor cells per 7. All IgA, IgM, and IgG can be measured in blood serum and plasma samples. Viral titres indicate the level of contamination in a laboratory environment and the degree of infection in patients. 48654-8. + + + + + - - ----- - Interpretation and Action Needed HBsAg HBsAb HBcAb (anti-HBs) (anti-HBc) No t I mmu n e - Get V acci n ated *I mmu n e Co n tro l l ed - P ro tectedSave 20% on Immunity & Titer lab tests and lab panels and learn the status of your immunity and your blood titers across various diseases that include Measles, Mumps, Rubella, Chicken Pox, Varicella- Zoster (Shingles), Tetanus and Diphtheria, and Hepatitis. Pronunciation of titer test with 1 audio pronunciations 1 rating Record the pronunciation of this word in your own voice and play it to listen to how you have pronounced it. phagocytophilum might remain elevated for many months after the disease has resolved. These values do not apply to results that are converted to other units of measure. You will be notified by e-mail as soon as your results are available. Measles=Rubeola. Antibody titer. US spelling of titre 2. Mononucleosis. Definition. Your doctor may order an anti-dsDNA if you have a. titer definition: 1. 1. 45166-6. e. ANCA stands for A nti- N eutrophilic C ytoplasmic A utoantibody. Maternal SARS-CoV-2 antibody titers at delivery were available for 39 women: 13 in group 1, 17 in group 2, and 9 women from the control group (Group 3, who were all seronegative). Varicella-Zoster Ab, IgG, S. Seroprotection is defined as a titer of ≥1:40, and seroconversion as a more than 4-fold titer increase with achievement of seroprotective titers between two time points (most commonly pre-vaccination and 30 days post-vaccination are used). 4 mL whole blood. ) until the test becomes negative. The laboratories typically stop the titer at 1:256 and report the result as ≥1:256 if the dog's blood is still positive. Specimens positive for Coccidioides antibody by EIA should be confirmed by additional testing (complement fixation and immunodiffusion). 608956. These include: COVID-19. Blood clots can form in the legs, lungs and other organs, such as the kidneys and spleen. The extractable nuclear antigen test, known as an ENA test, is a blood test that checks for proteins in your blood, also known as antibodies. There are three parts to the test. The titer test is an analysis that detects the presence and measures the amount of such antibodies in a person's blood. Row B shows that influenza viruses will bind to RBCs when placed in the same solution. The TB skin test is performed by injecting a small amount of fluid (called tuberculin) into the skin on the lower part of the arm. The titer test is done to prove immunity to a particular disease. All patients except infants < 6 months and people with blood type AB have natural antibodies at a titer of ≥ 1:8 (anti-A) or ≥ 1:4 (anti-B). Titers of 1:4 or higher is considered critical for Kell (compared to 1:16 for most other antibodies) and is considered to confer a high risk of fetal anemia. A titer is a laboratory test that measures the presence and amount of antibodies in blood. a measurement of the concentration of a substance (= how much of it…. A blood sample is needed. If you were immunized earlier in life, your immunity may have declined over time. Serum is the liquid portion of a blood sample from which the red blood cells, the white blood cells, and the platelets have been removed. Titres are reported in ratios, most often 1:40, 1:80, 1:160, 1:320, and 1:640. Pronunciation of titer test with 1 audio pronunciations. Symptoms of rubella include fever and a rash. An antinuclear antibody (ANA) test shows signs of autoimmune disease. The TB skin test is performed by injecting a small amount of fluid (called tuberculin) into the skin on the lower part of the arm. pdf (epcc. titer (US), titre (UK) n (concentration of antibody) título nm : título nm : The doctor told me that my titers are low right now. It was the First blood test for syphilis and the first test in the nontreponemal tests (NTT) category developed by Wassermann, Julius Citron, and Albert Neisser in 1906. Definition.