blood titer pronunciation. A blood sample is taken and tested. blood titer pronunciation

 
 A blood sample is taken and testedblood titer pronunciation  Immucor, Inc

This test looks for 3 types of antibodies to the bacteria Bordetella pertussis . cross agglutination the agglutination of particulate antigen by an. This also prevents further transmission and complications of infection. Rate the pronunciation difficulty of titer test. Your test is positive if it finds antinuclear antibodies in your blood. If the screen is positive, a titer will be performed at an additional charge. ELISA is a common means of determining antibody titers. 04, Table 2). 8 for RSV B neutralizing antibodies. The test results have to be interpreted after correlating with suitable clinical findings and. This blood test is non-invasive to the fetus and is an easy. 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. days : days . This test looks for CCP (cyclic citrullinated peptide) antibodies in the blood. Tetanus IgG Value. Syphilis, a chronic bacterial infection caused by the spirochete Treponema pallidum, is a sexually transmitted infection (STI). #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. Background Antinuclear antibody (ANA) is a common test for excluding alternative diagnoses. Your dog’s body can produce antigens after vaccination or after being infected with bacteria or viruses. The laboratory test results are NOT to be interpreted as results of a "stand-alone" test. 0095) when compared to tube titration. Agglutination reactions. These antibodies can cause blood clots to form in arteries and veins. Feline infectious peritonitis (FIP) is a viral disease of cats caused by certain strains of a virus called the feline coronavirus. 4 min read. | 215-489-4900 The Hepati ti s B P anel i ncl udes the fol l owi ng 3 tests: 1. Diagnosis may involve a physical exam, blood test, swab test, and cerebrospinal fluid test. A hepatitis B titer test measures antibodies in your blood to see if you’re immune either due to vaccination or previous infection. Listen to the audio pronunciation in the Cambridge English Dictionary. Numbness, tingling, and/or weakness in different parts of the body. 0 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. A negative result means that no IgM was detected. henselae is suspected to. Antibodies are produced in response to an antigen, or stimulus. If the Hep-2000 ANA titer is 1:80 or greater with a homogeneous, speckled, nucleolar, or atypical nuclear matrix pattern in children less than 18 years of age, the more specific tissue ANA will be performed at an additional charge. Each titer involves doubling the amount of test fluid, so that the difference between a titer of 1:640 and 1:320 is one dilution. • Titer testing is ordered and resulted in CHCS. An hCG blood test can indicate that a man has testicular cancer. If the test is positive, a panel of tests may be done to identify. 3. The minimum volume of a solution needed to cause a particular result in titration. This along with similar reactions caused the US Army to state low titer was < 1:250. Anti-RR antibodies were reported to be present in 40 of those 4754 individuals with titers ranging from 1:80 to 1:1280. This method is like making lemonade from a can of frozen concentrate. Symptoms of rubella include fever and a rash. 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. A blood sample is needed. Titer and Vaccination Explanations – PLEASE READ CAREFULLY (it’ll save you time/$$) Serum titers are blood tests that measure whether or not you are immune to a given disease(s). The substance may be from the environment or formed within the body. ) until the test becomes negative. the process of union of the surfaces of a wound. Both protocols are easy to use and they can be adapted to a broad range of research questions. 1 /5. Furthermore, the downside of getting a shingles vaccine is small: It is not very expensive. If you have a raised, hard bump or there's swelling on your arm, you have a positive test. Anti-HBs greater than 10-12 mIU/mL: Protected against hepatitis B virus infection, either from vaccination or successful recovery from a previous HBV infection. Viral load, also known as viral burden, is a numerical expression of the quantity of virus in a given volume of fluid, including biological and environmental specimens. Get Started. Dried blood spot (DBS) testing is available for purchase in select. titer: [ ti´ter ] the quantity of a substance required to react with or to correspond to a given amount of another substance. Alloimmunization is a response by an individual’s immune system to foreign human antigens that most frequently occurs during pregnancy or blood transfusions. ANA are antibodies produced by the immune system that bind to the body's own tissues. The negative results of Rubella IgG in your newborn shows the absence of the IgG antibodies which indicates no protection against the Rubella Virus. It checks for chickenpox antibodies (concentrations of IgG antibodies) in the blood. 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. , paroxysmal coughing, inspiratory whooping, posttussive emesis, or apnea) and contact. Labs screen all samples initially at a single dilution, usually 1:40 or 1:80. Learn more. If you're Native American, there's a good chance that you've thought a. Hemolytic reactions occur most commonly if the antibody titer exceeds 100 in saline or 400 with antiglobulin reagent. “Economics of blood screening: in search of an optimal blood screening strategy. You may have an autoimmune disorder if the level is high. 3 (the guideline standard). . Overview. A titer is obtained by doubling dilutions of the positive blood (1:4, 1:8, 1:16, 1:32 . All IgA, IgM, and IgG can be measured in blood serum and plasma samples. Inhibitor titers are measured in Nijmegen-Bethesda units (NBU) if the lab test used was the Nijmegen-Bethesda assay (NBA), or Bethesda units (BU) if the lab test used was the Bethesda assay. If staining is observed at both the 1:40 and 1:160 dilutions, then the laboratory. yellowing of the skin, or jaundice. : the strength of a solution or the concentration of a substance in solution as determined by titration. Many translated example sentences containing "titer" – Spanish-English dictionary and search engine for Spanish translations. SARS-CoV-2 is the name of the virus that causes coronavirus disease 2019 (COVID-19). ELISA is a common means of determining antibody titers. A negative or nonreactive result means the. Without clinical features or lab abnormalities such as leukopenia (low white blood cell count), thrombocytopenia (low platelet count) or protein in the urine, a positive ANA means exactly that. A positive ANA test is usually reported as both a ratio (called a titer) and a pattern, such as smooth or speckled. In immunology, a viral titre is the number of antibody-binding sites on the surface of a virus particle. An antinuclear antibody (ANA) test shows signs of autoimmune disease. Quest: $149. Most of the time, blood is drawn from a vein located on the inside of the elbow or the back of the hand. Purpose The test is given to evaluate whether a woman is immune to rubella (German measles ) as a result of childhood exposure or. It contains all the elements of blood that are necessary for oxygen delivery and hemostasis, in nearly physiologic ratios and concentrations. This video shows you how to pronounce Titer. Successful treatment is associated with a 4-fold or two-tube decline in titer (ie, from 1:32 to 1:8) 6 months after therapy for primary or secondary syphilis and 1 year after therapy for latent syphilis. 2 The body’s immune system makes antibodies in response to non-self proteins. Titer and Vaccination Explanations – Please read carefully (Adapted from the CSULB School of Nursing website) Serum titers are blood tests that measure whether or not you are immune to a given disease(s). Significant differences in the interpretability of anti-A/-B titers were observed among different methods. Titer. Useful For. The titers are diluted in series in phosphate-buffered saline (PBS) to achieve an endpoint titer at a maximum of 1:16 dilution. 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 Vote) Very easy. ASO and anti-DNase B are the most common of several antibodies that are produced by the body’s immune system in response to a strep infection with group A Streptococcus. In some cases, additional time should be allowed for. 0 NBU/BU or. jaundice. That means, for LabCorp at least, "until you reach 250 units/mL, you have little evidence of neutralization," he added. A celiac disease blood test looks for signs of celiac disease in a sample of your blood. Introduction: The implementation of a low-titer O+ whole blood (LTOWB) resuscitation algorithm, particularly in the prehospital environment, has several inherent challenges, including cost, limited and inconsistent supply, and the logistics of cold-chain management. It is conventionally expressed as the inverse of the greatest dilution level that still gives a positive result on some test. 2. You simply have a positive lab test without any features of an autoimmune disease. Author: ARUP Created Date: 5/23/2022 2:18:07 PM. 1 - 2 days. See examples of TITER used in a sentence. Hepatitis. Your immune system normally makes antibodies to help you fight infection. A BCR-ABL1 genetic test uses a sample of blood or bone marrow to look for an abnormal gene called BCR-ABL1. More specifically, a quantitative serum titer is a titer with a numerical value indicating your actual degree of immunity to a disease(s. This information gives medical providers an idea of a patient’s overall health in regards to their immune system. Very difficult. Limitations. The hepatitis B titer, sometimes known as an HBsAb test and an anti-HBs titer, measures the hepatitis B surface antibody level in the blood to check for immunity to Hepatitis B. Hepatitis B is a viral infection caused by one of five hepatitis viruses - the Hepatitis B virus (HBV). Antibodies are blood proteins produced in response to infection by a virus. Learn more. In Process. • When submitting a titer, include the lab report and interpretation. 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. The antinuclear antibody test looks for antibodies that bind to a part of the cell called the nucleus. 8 mL whole blood. Introduction. Detection of mumps immunoglobulin M (IgM) can aid in the diagnosis of mumps although a positive IgM result determines a probable rather than confirmed case, based on the Council of State and Territorial Epidemiologists mumps. 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. Chinkhumba, J. 5 prehospital and 117 mm Hg (p = 0. In Process. That's right. The DoD and. Titers may increase slightly in serofast women who were previously treated for syphilis become pregnant. The acronym RFFIT stands for Rapid Fluorescent Focus Inhibition Test. joint pain. Titer, normal less than 1:80 (1 to 80)Whole blood. Low birth weight. The antibody titer is a test that detects the presence and measures the number of antibodies within a person’s blood. ) until the test becomes negative. 1. In the case of the blood titer, the “titer” refers. If a person tests “positive,” then further testing is needed to determine if this is a new. 3 - 5 days. Neutralizing antibodies are part of the humoral response of the adaptive immune system against viruses, intracellular bacteria and. It is generally less than fourfold increase. From Applegate, 2000. (1) The disorder is now recognized as a spectrum of autoimmunity (termed NMO spectrum. The “titer” part of “blood titer” is a technical term that, generally speaking, represents a concentration of something. After separation, the serum will still contain antibodies. One approach has been to modify the test reagents such that 30 percent of normal individuals will have a positive test when their sample is. The titer test is done to prove immunity to a particular disease. . Sometimes known as. Cold agglutinins are antibodies that, instead of helping to fight bad things like bacteria in your body, attack your red blood cells. "When you get to 500 or 1,000, it rises in a linear fashion," Segev told. The antinuclear antibody panel is a blood test that looks at antinuclear antibodies (ANA). Naturally, you will ask, “What does the “titer” mean? Let me explain: The titer is the level to which the patient’s blood sample can be diluted and will still show positive ANA staining. tər( protective could not with titers of chemistry of the in an the titer of a. Results. These values do not apply to results that are converted to other units of measure. Antibodies are made by your immune system to help fight and control an infection, such as measles. 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. A varicella titer test (chickenpox test) typically sees results in 1-3 business days. Like other antibodies, they are produced by the immune system. US spelling of titre 2. ANCA Test. These include: COVID-19. Dr. Members of ICAP reached consensus on the definition and clinical relevance of 29 distinct HEp-2 cell IIF. US spelling of titre 2. 3 Tests 5 Biomarkers. L. Alternative Names. As shown, I am immune to both rubella and mumps. Titer reading. How the Test is Performed. How to say titer. This test is important because a single antibody class is. Blood clots can form in the legs, lungs and other organs, such as the kidneys and spleen. 4 In vitro serological tests detecting the presence of specific antibodies are used to reveal past infections and vaccine reactivity. Hepatitis B is a vaccine-preventable liver infection caused by the hepatitis B virus (HBV). The tests may also be used to check for certain antibodies that may be a sign of an autoimmune disease. In the test, serum (the non-cellular portion of. burgdorferi ), the bacterium that causes Lyme disease. 5403-1. Other tests to determine past streptococcal infections have been developed including the anti-CHO test (possible use for rheumatic fever) and the antipreabsorption. Open sores in the mouth. , adj agglutina´tive. titer definition: 1. Specific antibody deficiency. The ENA test is used to help diagnose certain autoimmune diseases. the strength of a solution or the concentration of a substance in solution as determined by titration… See the full definition Titer test for dogs: quick summary. A single titer greater than the upper limit of normal suggests an antecedent streptococcal infection or high streptococcal endemicity in the community. Confirm varicella in severe cases (hospitalizations or deaths) or unusual cases. TORCH infections are diagnosed through blood tests, PCR (polymerase chain reaction) tests and viral cultures. 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. 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). 40 (95% CI −0. A negative CSF test usually means EPM is not the cause of disease. Varicella zoster virus, which includes chickenpox and shingles. The ANA pattern refers to the distribution of staining produced by autoantibodies reacting with antigens in HEp-2 cells. An antibody titer is the most dilute serum sample that causes a positive test reaction. 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. Cold agglutinin disease (CAD) is a form of autoimmune hemolytic anemia (AIHA) in which cold agglutinins (IgM autoantibodies against red blood cell [RBC] antigens that bind at cold temperatures) can cause clinical symptoms related to RBC agglutination in cooler parts of the body and hemolytic anemia. We provide comprehensive vaccination services including all vaccines available in the US (excluding the COVID-19 vaccine) for work, school, travel, and general health. A uniform approach for selecting the method for ABO antibody titration is highly recommended, and DTT pretreatment of plasma to neutralize IgM activity. The most common cause of hepatitis is a. 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, a condition that mostly affects. Determine susceptibility to varicella. Pneumococcal infections can cause significant morbidity and mortality, particularly among young children, elderly adults, and individuals with immune deficiencies [1, 2]. Learn about the procedure, its risks, and what the results mean. They focus on proteins made by your immune system, with is a vital body system. Diagnosis and testing. How to use titer in a sentence. This is a case series of the initial 15 patients who received LTOWB on the battlefield. Mononucleosis. Measles and mumps. You will be notified by e-mail as soon as your results are available. R76. It is conventionally expressed as the inverse of the greatest dilution level that still gives a positive result on some test. Easy. The fertility journey can be difficult—this test is your first step. 2. We re-validated these titers on seropositive and seronegative identified donors from our small-scale test cohort using microsamplers loaded with donor blood then eluted as per standard protocol. ALTIR. phagocytophilum have been observed up to four years after the acute illness. We performed a. ANAs are a type of antibody called an autoantibody. Test setup information contains test file definition details to support order and result interfacing between Mayo Clinic Laboratories and. ANA2. An equivocal test result means that the test was unable to determine whether or not there was an antibody. Rheumatoid factor (RF) is an immune system protein that attacks healthy cells in the body. Viral Load Test. the hepatitis B virus at some point in time. 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. When an assay for measuring the infective virus particle is done (Plaque assay, Focus assay. 2 Typically, viruses can only infect a limited number of hosts, known as the host range. After someone. If a man detects a lump in one of his testicles, or if a doctor suspects that he’s at risk for testicular cancer, the test can be. titer (US), titre (UK) n (concentration of a solution) valoración nf : título nm : The chemist prepared the titer for the test. However, some people develop chronic hepatitis (elevation of AST/ALT), cirrhosis, or hepatocellular carcinoma (i. Symptoms of pertussis typically include rapid coughing. Polio 3 Titer. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright. Determination of immune status of individuals to the varicella-zoster virus (VZV) Documentation of previous infection with VZV in an individual without a previous record of immunization to VZV. When your viral load is high, you have more HIV in your body. Herpes IgM test results: A positive test result means that herpes IgM was detected in the sample. 5358-7. Almost all patients have high titers of fluorescent ANA that produce a speckled pattern. Your immune system makes proteins called antibodies that destroy harmful germs that enter your body. PCR of whole blood has low sensitivity in patients with chronic Q fever endocarditis, so serum antibody titers should also be tested. doi: 10. This test is carried out to investigate if there is an. How to say: Titer #336863 11/14/15 01:30 AM 11/14/15 01:30 AM: Joined: Feb 2010 Posts: 2,377. ASO titer; ASLO. Add red blood cells (RBC) and incubate at 4°C for 30 minutes. Expected Turnaround Time. $129. Use of low-titer group O whole blood for traumatic hemorrhage reduces the need for type-specific blood which may expedite treatment and mitigate the risk of hemolysis from incompatible transfusion [4]. 12 Currently, there is no universally accepted definition of “low titer. The titer test is done to prove immunity to a particular disease. 2 /5. By positive titer: (if you actually had chicken pox, or cannot find records for your past doses of the vaccines): Blood titer for Varicella showing that you have immunity. titer definition: 1. Antibodies are proteins created by the immune system to fight pathogens, such as viruses and bacteria. No special preparation is necessary for this test. According to Mayo Clinic labs the patient has protective response to 9/23 serotypes, However, if you use 1. Hereditary alpha tryptasemia can be called a biochemical trait. In 2016, US military special operations teams began receiving low titer group O whole blood (LTOWB) for use at the point of injury (POI). Measles Serology (Test CDC-10244) Measles Avidity (Test CDC-10248) Blood for serologic testing of infants or small children can be collected. Normal results mean that no significant ASMAs are detected in your blood. IgG titers against the RBD (A), the ectodomain of the S protein (C), and the N protein (D); IgM titers against the RBD (B); and neutralization titers (E) were. Learn more. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket. Its course is typically recurrent, with periods of relative remission followed by flare-ups. In addition, we offer an array of other. ” Tropical Doctor 36(1): 32-34:. Moderate. Additional testing is usually performed as a follow-up to help determine what specific disease may be present. Approval for a modification of the quantiferon-tb gold to an in-tube collection system that consists of three blood collection tubes, nil, tb antigen, and mitogen. A hepatitis B titer test measures antibodies in your blood to see if you’re immune either due to vaccination or previous infection. The concentration of antibodies present in the highest dilution of a serum sample at which. 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. If your doctor has ordered an antinuclear antibody (ANA) test, it's because they’re looking for signs of an autoimmune disease. Antibodies are proteins your body makes to fight infection. Varicella IgG Antibody Index. Inhibitor titers are measured in Nijmegen-Bethesda units (NBU) if the lab test used was the Nijmegen-Bethesda assay (NBA), or Bethesda units (BU) if the lab test used was the Bethesda assay. You dilute one can of concentrate into four cans of water. These include: COVID-19. The antigens used in the test are “H” and “O” antigens of Salmonella Typhi and “H” antigen of S. microti IgM antibody are suggestive of active or recent B. If you were immunized earlier in life, your immunity may have declined over time. Antistreptolysin O (ASO) titer is a blood test to measure antibodies against streptolysin O, a substance produced by group A streptococcus bacteria. Antibodies are proteins made by the body’s immune system to fight infections, viruses, and bateria. The measles titer test checks for the presence of IgG antibodies to measles in the blood. Symptoms are those of pneumonia, meningitis, or involvement of skin, bones, or viscera. It detects the antibodies your body produces to fight against the virus. The measles titer, also known as a measles test or a rubeola titer test, checks the measles antibody blood level. 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. Immunity Panel Most Popular. The amount starting antibody in the blood can, by example, then be reported on a blood titre lab report like one number in a format like milli-international measure each millilitres (mIU / mL). 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. 0 or higher. All of these terms will be explained here, including how the disease works and what we can do for it. Last updated. This is the bacteria that causes TB. The presence of serum antimitochondrial antibodies (AMA) is a highly specific indication of primary biliary cirrhosis (PBC). CRS = Congenital Rubella Syndrome. e. 0 - other international versions of ICD-10 R76. An IgG blood test is used to diagnose herpes simplex virus infection. Neutralization renders the particle no longer infectious or pathogenic. Evaluating patients at-risk for antinuclear antibodies-associated systemic autoimmune rheumatic disease particularly systemic lupus erythematosus, Sjogren syndrome, and mixed connective tissue disease. Hep atitis B S u rface An tig en (HBsAg) – The. This chapter describes assays where data are recorded using a plate-reader; it does not cover assay methods designed for flow cytometry or high content imaging. Follow-up. e. Most people with chronic HBV infection are asymptomatic and have no evidence of liver disease or injury. 05, R 2 = 0. The titer test is an analysis that detects the presence and measures the amount of such antibodies in a person's blood. : 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. Antibodies to A. Blood samples were also taken to determine. 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 . 10/17/2018 Christa A. Difficult. EIA units : enzyme immunoassay units . 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. serum or plasma specimen is serially diluted two-fold to determine the endpoint titer. Autoantibody testing. Pronunciation Guide. Immucor, Inc. In. Do not use a gel-barrier tube. Monitoring antibody levels during pregnancy to help assess the risk of hemolytic disease of the newborn This test is not useful for monitoring the efficacy of Rh-immune globulin administration. 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). $75. A titer may be used to prove immunity to disease. VZG. Figure (PageIndex{5}): A viral suspension is mixed with a standardized amount of red blood cells. A titer test is a blood test that measures the level of immune system proteins called antibodies. Varicella is caused by the varicella zoster virus (VZV), a member of the herpesvirus group, and is highly contagious. if the analyst is using an oxalic acid solution to titrate a solution of calcium oxide, the titer of the oxalic acid solution would be expressed as its CaO titer, or the weight of CaO. How to say titer in English? Pronunciation of titer with 2 audio pronunciations, 5 synonyms, 2 meanings, 11 translations and more for titer. Learn more. They are often measured to help diagnose different conditions, such as infections, immunodeficiency, autoimmune disease, and certain types of cancer. 48654-8. For example, the antibody for chickenpox isn't the same as the. The Kleihauer-Betke test (KB) is a blood test used during pregnancy to quantify the amount of fetal blood found in the maternal circulation. S. But it doesn't always mean you have active. How to say titer. A titer measurement is expressed as a ratio, such as 1:40. It. Testing for syphilis involves two forms of antibody tests. Redman, MD, MPH , Andrew D. When you come into contact with harmful bacteria, your body produces antibodies to defend itself against. . However, syphilis also can be acquired through vertical (mother-to-child) transmission, and congenital syphilis continues to be a global cause of infant mortality. Blood is taken from the mother during the pregnancy, and using PCR, can detect the K, C, c, D, and E alleles of fetal DNA. Hepatitis B is a viral infection that targets your liver. A positive test doesn’t mean that you have an autoimmune condition. titer definition: 1. The destruction of these red blood cells (RBCs) by antibodies directed. Usually, the results of the ANA test are reported in titers and patterns.