who can read a tb test in pennsylvania who can read a tb test in pennsylvania

TB testing may be referred to as Purified Protein Derivative (PPD), Mantoux, Interferon Gamma Release Assay (IGRA) Test, Tuberculosis Skin Test (TST), or Tine Test (this method of testing is no longer recommended due to its lack of accuracy). Self Pay Pricing | Pennsylvania - Patient First I hope you have a wonderful day. I understand they can administer the test and pass on their observations of the results to the MD, but the MD needs to read the test. 1 Article; A repeat TB test (e.g., TB blood test or a TB skin test) is not required. Serum ferritin concentrations may serve as a tool to monitor the effects of iron therapy. Most persons can receive a TST. Thank you for taking the time to reply to my question. CDC and the National Tuberculosis Controllers Association (NTCA) preferentially recommend short-course, rifamycin-based, 3- or 4-month latent TB infection treatment regimens over 6- or 9-month isoniazid monotherapy (6H or 9H, respectively). Testing positive for tuberculosis with any of these tests means you have TB, but the tests do not differentiate between the active and latent types of TB. The cookies is used to store the user consent for the cookies in the category "Necessary". allnurses is a Nursing Career & Support site for Nurses and Students. Health Professional Colleges may require testing for Tuberculosis (TB). Self-reading and reporting of TST results, is not acceptable. Therefore most practices now refer to the nurses at the health department as the test can be done for $5 or less if there was a verified exposure. Specializes in OR, Nursing Professional Development. TB Testing in Philadelphia, PA | SAVE 40% vs Urgent Care - CVS Pharmacy TB blood tests (sometimes called IGRAs) use a blood sample to find TB infection. Official American Thoracic Society/Infectious Diseases Society of The Centers for Disease Control and Prevention (CDC) recommends screening only those populations at risk for tuberculosis (TB). Only licensed people can (LVN, RN, PA, NP, MD). Subjects were actively employed health workers between 20 and 64 years of age without active tuberculosis. The training plan number is 5338, and the name is 'IDOH Tuberculosis (TB) Basics and TB Tests Used to Identify TB Infection' Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features. 28 Pa. Code 23.44. Positive vs. Negative TB Test: How to Tell the Difference However, because IGRAs are similar to TSTs in terms of how they are performed and interpreted, it is likely that medical assistants who have been trained to interpret TSTs could also be trained to interpret IGRAs. These cookies will be stored in your browser only with your consent. A PPD test is not a perfect screening test for TB and in about 20% of patients it can be falsely negative. Healthcare license/certificates which allow administration and reading of a TB skin test include: Certified Medical Assistants (MA-C). I consent to receive auto-dialed and/or pre-recorded telemarketing calls from or on behalf of PIE. According to the business's TB test page, they do claim insurance coverage is not accepted for this service . montana frost depth map; Hola mundo! (e)The tuberculin skin test shall be performed by the school physician, or by a physician of the employes choice legally qualified to practice medicine and surgery or osteopathy or osteopathic surgery in this Commonwealth, or the physicians legally qualified designee. QFT-Plus is an indirect test for M tuberculosis infection (including . A TB test is a medical test used to determine if someone has tuberculosis (TB). The injection should be made with a tuberculin syringe, with the needle bevel facing upward. Uncategorized. If you have concerns, they need to be addressed by the provider, not an anonymous message board. The TST is NOT an immunization or vaccine. Reading the Tuberculin Skin Test : Who, When, and How? - JAMA This test looks for TB in the brain or the spine. The TB test is also known as a tuberculin skin test (TST) or a Mantoux test. Yes, staff person must obtain documentation of the COVID-19 vaccine administration, including the date of administration or written documentation from the individual's or staff person's physician of the necessity to defer TST; and follows physician recommendations as it relates to TST as soon as possible after completing a COVID-19 vaccine (ii)Five mm or larger induration 48 to 72 hours after the test is administered in a person recently exposed to a case of active tuberculosis. Or nationally certified to read TB tests? All TB services are by appointment only, no walk-ins. You may be trying to access this site from a secured browser on the server. Healthcare license/certificates which allow administration and reading of a TB skin test include: Interpreting a TB skin test requires reviewing the patients risk factors and millimeters of induration. The samples are tested for TB bacteria. A TB skin test shows if your immune system has responded to the bacterium that causes tuberculosis (TB). A TB test checks to see if you have been infected with tuberculosis (TB). (f)Prior to working for the school, the person tested for tuberculosis shall provide to the school a form, completed and signed by the physician responsible for the performance of the test, that indicates either of the following: (1)A nonsignificant Mantoux test reaction using the two-step skin test procedure, or a nonsignificant multiple puncture test reaction. Chest pain, or pain with breathing or coughing. Only a small amount of protein from the TB bacteria is injected. (2)A significant or positive reaction shall be filed when the test reveals vesiculation 48 to 72 hours after the test is administered. When a person with TB coughs, sneezes or speaks, the TB bacteria becomes airborne and can infect those nearby if they breathe in the bacteria. EKGs. These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our site. You can review and change the way we collect information below. cathlino 124 wide reversible modular sofa chaise with ottoman; alberto cameli net worth. We suspected he had an ear infection. The tuberculin test shall be performed by the school physician, or by a physician of the employee's choice. These cookies track visitors across websites and collect information to provide customized ads. TST is the recommended method of testing for children younger than 5 years of age. Reading a TB test site is making clinical assessments/evaluations, which is not allowed. In some cases, medical assistants may also be able to administer TB tests. Two-step testing is useful for the initial skin testing of adults who are going to be retested periodically, such as some health care workers. Who can read TB skin test results? Screening & Testing - Tuberculosis The mission of Param Institute of Education is to be one of the finest providers of training and education in Healthcare industry by providing highly instructional real world education to individuals for a rewarding long term career in industry. CDC twenty four seven. Can a unlicensed medical assistant read a TB test? Its 3.7 million inhabitants make it the European Union's most populous city, according to population within city limits. A tuberculin test (TB) is a skin test that helps to determine if someone has tuberculosis (TB) infection. PPD or Old TuberculinOTshall be the tuberculin used when administering the percutaneous multiple puncture skin test. Thank you for taking the time to confirm your preferences. The word "tuberculosis" comes from a Latin word for "nodule" or something that sticks out. The nurses work under the County ID MD protocol & CDC guidelines for interpretation and subsequent referral for additional testing (repeat test, chest X-ray, refer to MD for treatment)[/quote. TB blood tests are also called interferon-gamma release assays or IGRAs. The TST is an intradermal injection. We also use third-party cookies that help us analyze and understand how you use this website. Sep 24, 2022 4 min. 09-01 TB Screening - New York State Department Of Health TB Manual for County and Municipal Health Departments, TB ProgramBureau of Communicable DiseasesPennsylvania Department of Health625 Forster Street, Room 1013Harrisburg, PA 17120 Phone: 717-787-6267Fax: 717-971-3001. What are the duties of a certified medical assistant? who can read a tb test in pennsylvania - dice-dental.asia Pennsylvania also requires assessment of candidates in General Knowledge, Professional Knowledge and Subject Area Knowledge prior to issuance of a certificate. The Centers for Disease Control and Prevention (CDC) cannot attest to the accuracy of a non-federal website. Has 13 years experience. TB bacteria are NOT injected into the body. The skin test reaction should be read between 48 and 72 hours after administration by a health care worker trained to read TST results. The State Board of Healing Arts indicates an unlicensed person cannot interrupt tests, which includes skin tests. who can read a tb test in pennsylvania. PPD Skin Test (Tuberculosis Test) - Healthline Only one visit is required to draw blood for this test. Many nurses are not trained on how to properly read the results. This bump is called a wheal. We recommend performing an interferon- release assay (IGRA) rather than a tuberculin skin test (TST) in individuals 5 years or older who meet the following criteria: (1) are likely to be infected with Mtb, (2) have a low or intermediate risk of disease progression, (3) it has been decided that testing for LTBI is warranted, and (4) either have a Specializes in Med nurse in med-surg., float, HH, and PDN. Thank you to the Indiana Department of Health and numerous dedicated health professionals . Cookies used to track the effectiveness of CDC public health campaigns through clickthrough data. If you need to go back and make any changes, you can always do so by going to our Privacy Policy page. A TB test is usually given as part of a physical exam, and it is recommended for people who are at high risk for tuberculosis. TB TEST in Reading: Find and book a nearby PPD test today Upon receipt of the request the Division of School Health and the Secretary of Health will either deny or approve the request and inform the school entity of the decision in a hard copy letter sent to the Superintendent/CEO. A persons health care provider should choose which TB test to use. Labs, TB Testing, IVs, EKGs | MedExpress Urgent Care PDF Mantoux - Centers For Disease Control And Prevention All employees are required under the state law to have annual PPD tests for tuberculosis screening. Tuberculosis Screening - PA 211 Tuberculosis is an infectious disease that can cause infection in your lungs or other tissues. Heres how to do the test right: Watch what you eat. An inconclusive result means that it is not possible to determine if you have been infected with TB bacteria based on the size of the wheal alone. TB Services in Pennsylvania Services Provided State Health Centers County and Municipal Health Departments Contact the TB Program TB Program Bureau of Communicable Diseases Pennsylvania Department of Health 625 Forster Street, Room 1013 Harrisburg, PA 17120 Phone: 717-787-6267 There have been a few large incidents with "certified" MA's misreading hives/local allergic reaction as a positive PPD. PDF Tuberculosis Screening and Testing for Occupational Purposes There is no problem in repeating a TB skin test. It is my legal opinion that medicalassistants can be delegated telephone screening by the overseeing physician,but not telephone triage. A small welt or bump will appear and go away after a few hours. For a test to be valid, the nil tube must have a value of 8.0 IU/mL. There are two blood tests available for TB: the QuantiFERONTB Gold In-Tube test and the T-SPOT TB test. 11 junio, 2020. Not necessarily. One of the most important things to remember when interpreting TB test results is that false positives can occur. Medical assistants can read TB tests, but they need to interpret the results correctly to ensure that patients receive the appropriate treatment. I think that in this instance, more than the job title, it is important for the person reading the results to be specifically trained on what they are assessing. TB Control Officeslocated in various cities, states and territories, and primary and urgent care clinics in your area may also offer TB testing. The person has had a previous TB infection that has left them with scarring on the lungs. School personnel to be tested include employees and independent contractors who provide direct services to students on behalf of a school, including but not limited to teachers, nurses, administrators, physicians, dentists, dental hygienists, custodians, janitors, cooks, cafeteria workers, bus drivers, librarians, psychologists, audiologists and counselors, and student teachers and volunteers. Please do not hesitate to contact the Occupational Health Clinic at occupational.health.clinic@vanderbilt.edu or 615-936-0955 with . Treatment for Minor Illnesses - Patient First The skin test reaction should be read between 48 and 72 hours after administration by a health care worker trained to read TST results. T testing: Performing an interferon gamma release assay (IGRA) blood test or tuberculin skin test Treating latent TB infection is effective in preventing TB disease and less costly than treating TB disease. Enter your official contact and identification details. Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. I understand an RN can read a TB test, but I was curious if a medical assistant can read/interrupt when there is no RN in the office. Cookies used to track the effectiveness of CDC public health campaigns through clickthrough data. (b) School personnel to be tested include employes and independent contractors who provide direct services to students on behalf of a school, including but not limited to teachers, nurses, administrators, physicians, dentists, dental hygienists, custodians, janitors, cooks, cafeteria workers, bus drivers, librarians, psychologists, audiologists Tuberculosis Symptom Screening (PDF) Used when performing baseline or annual symptom screening for employees with untreated TB infection or to assess for TB disease. Two TB blood tests are approved by the U.S. Food and Drug Administration (FDA) and are available in the United States: the QuantiFERON-TB Gold Plus (QFT-Plus) and the T-SPOT.TB test (T-Spot). Screening often consists of the following components: Who Can Receive a TST? TB blood tests are the preferred TB test for: To receive email updates about this page, enter your email address: We take your privacy seriously. (j)The tuberculin skin test shall be administered within 3 months prior to the date the school receives the form. Walgreens offers TB testing at select locations. IGRAs can be safely repeated. The training will typically include how to interpret both positive and negative results. If you have latent TB, the risk of it becoming active increases if the body's immune system is weakened from another disease, such ashuman immunodeficiency virus (HIV). This is more likely to happen in people who are immunocompromised or who have recently been infected with TB bacteria. 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. 2. How does a TB blood test work and who should get it? - Medical News Today 5 Mental Health Tips to Keep Your Elderly Loved Ones Healthy, Boost Your Mental Health With These Tips for Office Workers, Essential Mental Health Tips for a Smooth Transition Back to School, How to Keep Your Mental Health in Check During the Holidays. Scroll down to the last question of the FAQs. However, I would say that it requires assessment and by that logic, I'm not sure that medical assistants should do it. Tuberculin (TB Skin Test) - Testing.com TB skin tests are used to find out if someone has developed an immune response to the bacteria that cause tuberculosis (TB). Saving Lives, Protecting People, Interim Clinical Considerations for Use of COVID-19 Vaccines Currently Authorized in the United States, What You Need to Know About the TB Skin Test, National Tuberculosis Controllers Association (NTCA) Testing and Treatment of Latent Tuberculosis Infection in the United States: Clinical Recommendations, Core Curriculum on TB: What the Clinician Should Know, Division of Tuberculosis Elimination, National Center for HIV, Viral Hepatitis, STD, and TB Prevention, Centers for Disease Control and Prevention, TB Screening and Testing of Health Care Personnel, Diagnosing latent TB infection and TB disease, Deciding When to Treat Latent TB Infection, Treatment Regimens for Latent TB Infection (LTBI), TB Infection Control in Health Care Settings, Resources for TB Screening and Testing of Health Care Personnel, Interim Laboratory Biosafety Guidance for XDR tuberculosis strains, Model Performance Evaluation Program (MPEP), Rapid Molecular Testing to Detect Drug-Resistant TB in the US, Background on Tests for Molecular Detection of DR, General Considerations and Principles for a Molecular DR Testing Service, Possible Scenarios and Scope of Testing for a Molecular DR Testing Service, General Recommendations of the Expert Panel, The Uses of Nucleic Acid Amplification Tests for the Diagnosis of TB, Reported TB in the US, 2021 Surveillance Report, Tuberculosis in the United States, 2021 (Slide Set), Archived Surveillance Reports and Slide Sets, Interactive Core Curriculum on Tuberculosis: What the Clinician Should Know, Strengthening Civil Surgeons Capacity to Improve LTBI Surveillance and Outcomes Among Status Adjusters, Effective TB Interviewing for Contact Investigation, Forging Partnerships to Eliminate Tuberculosis, LTBI: A Guide for Primary Health Care Providers, Report of Verified Case of Tuberculosis (RVCT), TB Contact Investigation Interviewing Skills Course, Understanding the TB Cohort Review Process, Tuberculosis - The Connection between TB and HIV, 12-Dose Regimen for Latent TB Infection-Patient Education Brochure, Tuberculosis Laboratory Aggregate Reports, Epidemiology of Tuberculosis Among Non-U.S.Born Persons in the United States, 19932016, Self-Study Modules on Tuberculosis, 1-5 Slide Sets, The Tuberculosis (TB) in Correctional Settings, Epidemiology of Tuberculosis in Correctional Facilities, United States, 1993-2017, Prevention and Control of Tuberculosis in Correctional and Detention Facilities, Guidelines for Preventing the Transmission of M. TB in Health care Settings, Investigation of Contacts of Persons with Infectious TB, Epidemiology of Pediatric Tuberculosis in the United States, Targeted Tuberculosis Testing and Treatment of Latent Tuberculosis Infection, Customizable Take on TB Infographic with Instructions, Treating Latent TB Infection with Short-Course Regimens, U.S. Department of Health & Human Services. School Student Requirements If you have symptoms or you know youve been exposed to someone with TB, you may be advised to get another test later. During the visit, your provider will draw blood, and then theyll send it to a laboratory for analysis. Jun 14, 2010. Frequently Asked Questions About TB | Texas DSHS My facility used to require annual PPD testing; it now only requires testing for those who are considered to work in high risk departments and those who are exposed to a patient later diagnosed with TB. Has 18 years experience. Tuberculosis (TB) | Kaiser Permanente PPD skin test: MedlinePlus Medical Encyclopedia TST is the recommended method of testing for children younger than 5 years of age. Certified Electrocardiograph Technician (EKG), Yoga Teacher Training Certificate Program (200-Hours), Yoga Teacher Training Certificate Program (300-Hours), http://valleyofthesunpharmacy.com/suhagra/, Advanced Registered Nurse Practitioner (ARNP). Reading must be by a licensed nurse, APN, PA or physician in my area. Copyright 2023 ElegantQuestion.com | All rights reserved. Yes, medical assistants can read TB tests. What would "they are certified and trained - "nationally trained" to read them mean? TB skin tests and TB blood tests are not expected to affect the safety or the effectiveness of the COVID-19 vaccine. The cookie is used to store the user consent for the cookies in the category "Performance". Saving Lives, Protecting People, Guidelines for preventing the transmission of, Targeted tuberculin testing and treatment of latent tuberculosis infection, Diagnosis of Tuberculosis in Adults and Children, Latent TB Infection Testing and Treatment: Summary of U.S. CDC TB testing and administration of live vaccine The TB test and live vaccines can be administered at the same visit. School personnel to be tested include employees and independent contractors who provide direct services to students on behalf of a school, including but not limited to teachers, nurses, administrators, physicians, dentists, dental hygienists, custodians, janitors, cooks, cafeteria workers, bus drivers, librarians, psychologists, audiologists and Published by on 30 junio, 2022 But TB can also spread to other parts of the body, which is called extrapulmonary TB. Tuberculosis - Department of Health Request a Modification for TB Testing of Students What are the educational requirements to become a certified medical assistant? If a short-course treatment regimen is not an option, 6H or 9H is an effective alternative latent TB infection treatment regimen. Procedureswhich constitute the practice of medicine, or which state law specificallyand unambiguously permits only certain licensed allied health careprofessionals to perform, however, may not be delegated to unlicensed personnelsuch as medical assistants. Necessary cookies are absolutely essential for the website to function properly. The TST is performed by injecting 0.1 ml of tuberculin purified protein derivative (PPD) into the inner surface of the forearm. A sputum. TST is contraindicated only for persons who have had a severe reaction (e.g., necrosis, blistering, anaphylactic shock, or ulcerations) to a previous TST. Online TB/TST Course The Indiana Department of Health offers a free online course on the In-Train platform https://in.train.org that is a prerequisite for some Tuberculin Skin Test (TST) training programs. As part of the Department of Homeland Security's United States Citizenship and Immigration Services' humanitarian parolee programs, program beneficiaries two years of age or older are required to complete a medical screening for tuberculosis (TB), including an IGRA test within 90 days of arrival to the United States. 2 Step PPD Test - Nao Medical - Statcare For persons scheduled to receive a TST, testing should be done as follows: There are two kinds of tests that are used to determine if a person has been infected with TB bacteria: the TB blood test and the TB skin test. There are two types of TB tests: a skin test and a blood test. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. These cookies may also be used for advertising purposes by these third parties. This two-step approach can reduce the likelihood that a boosted reaction will be misinterpreted as a recent infection. This cookie is set by GDPR Cookie Consent plugin. There is no contraindication to repeating the TST, unless a previous TST was associated with a severe reaction. The result depends on the size of the raised, hard area or swelling. If school policies are changed as a result of these requests or requirements, the school must also submit a request for modification to the Department of Health (as noted below). If a person does not return within 48-72 hours for a tuberculin skin test reading, a second test can be placed as soon as possible. 6 Where can I find information about TB in PA? However, there is no doctor's order for the test and no physician or house officer on staff. Medical assistants can read TB tests if they have received training on how to do so. The way to complete the Get And Sign TUBERCULOSIS SKIN TEST FORM Bristolcc on the web: To get started on the document, utilize the Fill camp; Sign Online button or tick the preview image of the form. The cardiac stress test itself only lasts around 15 minutes. No statutes or acts will be found at this website. If you do not allow these cookies we will not know when you have visited our site, and will not be able to monitor its performance. This disease is caused by a bacteria called Mycobacterium tuberculosis. A written order has been issued by a licensed physician pertaining to an individual patient or group of patients. This modification applies to students only. The data from EKGs can also help providers uncover why you might be experiencing possible cardiac symptoms, such as shortness of breath, dizziness or . Specializes in Complex pedi to LTC/SA & now a manager. The test is usually read 48 to 72 hours after it is performed. What are the benefits of becoming a certified medical assistant? All schools must continue to test employees and volunteers as outlined below. The needle is gently placed under the top layer of skin, causing a bump (welt) to . A 2-step PPD skin test improves the detection of exposure to tuberculosis with more accuracy. (i)If the percutaneous multiple puncture test method is used, the following information shall be provided on the form: (1)A nonsignificant or negative reaction shall be filed when the test reveals no induration or vesiculationblistering48 to 72 hours after the test is administered. Chester County Health Department provides Tuberculosis (TB) services, by referral from healthcare providers, for evaluation and treatment of disease and infection. The Pennsylvania Code website reflects the Pennsylvania Code changes effective through 52 Pa.B. Discuss skin test training, certification programs, and requirements in your locality . The Mantoux tuberculin skin test is performed in two visits to a healthcare provider. Yes. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. There is no definitive answer to this question, as it depends on a number of factors. This is the preferred TB test for children younger than 5 years old. People are more likely to get TB from someone they live or work with rather than public areas. If the X-ray or CT scan images show evidence of TB, a doctor will usually test the person's sputum. FUNCTIONS OF AN LPN As per PA Code - Penn State Berks Recommendations, What You Need To Know About the Tuberculosis Skin Test, Division of Tuberculosis Elimination, National Center for HIV, Viral Hepatitis, STD, and TB Prevention, Centers for Disease Control and Prevention, TB Screening and Testing of Health Care Personnel, Diagnosing latent TB infection and TB disease, Deciding When to Treat Latent TB Infection, Treatment Regimens for Latent TB Infection (LTBI), TB Infection Control in Health Care Settings, Resources for TB Screening and Testing of Health Care Personnel, Interim Laboratory Biosafety Guidance for XDR tuberculosis strains, Model Performance Evaluation Program (MPEP), Rapid Molecular Testing to Detect Drug-Resistant TB in the US, Background on Tests for Molecular Detection of DR, General Considerations and Principles for a Molecular DR Testing Service, Possible Scenarios and Scope of Testing for a Molecular DR Testing Service, General Recommendations of the Expert Panel, The Uses of Nucleic Acid Amplification Tests for the Diagnosis of TB, Reported TB in the US, 2021 Surveillance Report, Tuberculosis in the United States, 2021 (Slide Set), Archived Surveillance Reports and Slide Sets, Interactive Core Curriculum on Tuberculosis: What the Clinician Should Know, Strengthening Civil Surgeons Capacity to Improve LTBI Surveillance and Outcomes Among Status Adjusters, Effective TB Interviewing for Contact Investigation, Forging Partnerships to Eliminate Tuberculosis, LTBI: A Guide for Primary Health Care Providers, Report of Verified Case of Tuberculosis (RVCT), TB Contact Investigation Interviewing Skills Course, Understanding the TB Cohort Review Process, Tuberculosis - The Connection between TB and HIV, 12-Dose Regimen for Latent TB Infection-Patient Education Brochure, Tuberculosis Laboratory Aggregate Reports, Epidemiology of Tuberculosis Among Non-U.S.Born Persons in the United States, 19932016, Self-Study Modules on Tuberculosis, 1-5 Slide Sets, The Tuberculosis (TB) in Correctional Settings, Epidemiology of Tuberculosis in Correctional Facilities, United States, 1993-2017, Prevention and Control of Tuberculosis in Correctional and Detention Facilities, Guidelines for Preventing the Transmission of M. TB in Health care Settings, Investigation of Contacts of Persons with Infectious TB, Epidemiology of Pediatric Tuberculosis in the United States, Targeted Tuberculosis Testing and Treatment of Latent Tuberculosis Infection, Customizable Take on TB Infographic with Instructions, Treating Latent TB Infection with Short-Course Regimens, U.S. Department of Health & Human Services, Measurement in millimeters of the induration, Persons risk of TB infection or the risk of progression to TB disease if infected, Previous TB vaccination with the bacille Calmette-Gurin (BCG) vaccine, Infection with nontuberculosis mycobacteria (mycobacteria other than, Incorrect measurement or interpretation of reaction, Recent TB infection (within the past 8 to 10 weeks), Recent live-virus measles or smallpox vaccination, Incorrect measuring or interpretation of TST reaction, Either on the same day as vaccination with live-virus vaccine or, At least 1 month after the administration of the live-virus vaccine.