Isoniazid toxicity in health care workers.
(57/2817)
The toxicity of isoniazid chemoprophylaxis was assessed in 83 health care workers (HCWs) receiving a 6-month course, in whom clinical toxicity and liver function were monitored. Thirty-four HCWs (41%) developed an adverse event; in 26 (76%), toxicity was sufficiently severe to require cessation of treatment. Of the total, liver function test abnormalities (serum alanine transaminase levels more than two times normal) were evident in 14 subjects, with 8 requiring cessation of therapy. Other symptoms reported included malaise, nausea with associated anorexia, arthralgia, and rash. Mean time to development of symptoms was 3 weeks (range, 0.5-6 weeks), with the mean age of those with toxicity not differing significantly from those without (38 vs. 39 years). The high rate of toxicity seen in this study is sufficiently notable that we advocate the use of monthly liver function testing and frequent review in those receiving isoniazid prophylactic therapy. (+info)
Skill acquisition in the implementation of functional analysis methodology.
(58/2817)
Functional analysis methodology is a powerful assessment tool for identifying contingencies that maintain a wide range of behavior disorders and for developing effective treatment programs. Nevertheless, concerns have been raised about the feasibility of conducting functional analyses in typical service settings. In this study, we examined the issue of skill acquisition in implementing functional analyses by evaluating an instructional program designed to establish a basic set of competencies. Eleven undergraduate students enrolled in a laboratory course in applied behavior analysis served as participants. Their performance was assessed during scripted simulations in which they played the roles of "therapists" who conducted functional analyses and trained graduate students played the roles of "clients" who emitted self-injurious and destructive behaviors. To approximate conditions under which an individual might conduct an assessment with limited prior training, participants read a brief set of materials prior to conducting baseline sessions. A multiple baseline design was used to assess the effects of training, which consisted of reading additional materials, watching a videotaped simulation demonstrating correct procedural implementation, passing a written quiz, and receiving feedback on performance during sessions. Results showed that participants scored a relatively high percentage of correct therapist responses during baseline, and that all achieved an accuracy level of 95% or higher following training that lasted about 2 hr. These results suggest that basic skills for conducting functional analyses can be acquired quickly by individuals who have relatively little clinical experience. (+info)
Risk and management of blood-borne infections in health care workers.
(59/2817)
Exposure to blood-borne pathogens poses a serious risk to health care workers (HCWs). We review the risk and management of human immunodeficiency virus (HIV), hepatitis B virus (HBV), and hepatitis C virus (HCV) infections in HCWs and also discuss current methods for preventing exposures and recommendations for postexposure prophylaxis. In the health care setting, blood-borne pathogen transmission occurs predominantly by percutaneous or mucosal exposure of workers to the blood or body fluids of infected patients. Prospective studies of HCWs have estimated that the average risk for HIV transmission after a percutaneous exposure is approximately 0.3%, the risk of HBV transmission is 6 to 30%, and the risk of HCV transmission is approximately 1.8%. To minimize the risk of blood-borne pathogen transmission from HCWs to patients, all HCWs should adhere to standard precautions, including the appropriate use of hand washing, protective barriers, and care in the use and disposal of needles and other sharp instruments. Employers should have in place a system that includes written protocols for prompt reporting, evaluation, counseling, treatment, and follow-up of occupational exposures that may place a worker at risk of blood-borne pathogen infection. A sustained commitment to the occupational health of all HCWs will ensure maximum protection for HCWs and patients and the availability of optimal medical care for all who need it. (+info)
Building a virtual network in a community health research training program.
(60/2817)
OBJECTIVE: To describe the experiences, lessons, and implications of building a virtual network as part of a two-year community health research training program in a Canadian province. DESIGN: An action research field study in which 25 health professionals from 17 health regions participated in a seven-week training course on health policy, management, economics, research methods, data analysis, and computer technology. The participants then returned to their regions to apply the knowledge in different community health research projects. Ongoing faculty consultations and support were provided as needed. Each participant was given a notebook computer with the necessary software, Internet access, and technical support for two years, to access information resources, engage in group problem solving, share ideas and knowledge, and collaborate on projects. MEASUREMENTS: Data collected over two years consisted of program documents, records of interviews with participants and staff, meeting notes, computer usage statistics, automated online surveys, computer conference postings, program Web site, and course feedback. The analysis consisted of detailed review and comparison of the data from different sources. NUD*IST was then used to validate earlier study findings. RESULTS: The ten key lessons are that role clarity, technology vision, implementation staging, protected time, just-in-time training, ongoing facilitation, work integration, participatory design, relationship building, and the demonstration of results are essential ingredients for building a successful network. CONCLUSION: This study provides a descriptive model of the processes involved in developing, in the community health setting, virtual networks that can be used as the basis for future research and as a practical guide for managers. (+info)
Audit of rheumatology services for adolescents and young adults in the UK. British Paediatric Rheumatology Group.
(61/2817)
BACKGROUND: Juvenile idiopathic arthritis (JIA) is associated with significant morbidity in adulthood with at least one third of children continuing to have active inflammatory disease into their adult years and up to 60% of all patients continuing to have some limitation of their activities of daily living. A survey of service provision for these young people in the transition from paediatric to adult rheumatology care was therefore undertaken. METHODS: A postal questionnaire was sent to all 92 members of the British Paediatric Rheumatology Group, representing 61 units providing a paediatric rheumatology service in the UK and Eire. RESULTS: Fifty-five replies were received representing a 60% completion rate of doctors and 84% of units on the mailing list. The majority of respondents were adult rheumatologists (n = 36, 65%) with 42% of respondents based in teaching hospitals. A median of 24 patients (new and follow-up, range 1-225) were seen in a median of two paediatric rheumatology clinics (range 0-15) per month. Eighteen per cent of units had a dedicated adolescent clinic (n = 9) with a median of one clinic per month and a median number of new patients per month of two (range 0-24) and 10 review patients (4-32). All the adolescent clinics involved an adult rheumatologist with five having a paediatrician in clinic and four having access to a paediatrician. The majority of clinics involved a specialist registrar (n = 6), a nurse specialist (n = 6), an occupational therapist (n = 6) and a physiotherapist (n = 5). The majority of clinics had flexible entry and exit criteria. In seven clinics there was a standardized process of transfer, first discussed at a median age of 13 yr (range 12-16) but no unit provided literature or organized pre-visits for this process. A demand for patient information resources (e.g. disease and drug information, careers) specifically aimed at adolescents with rheumatic diseases was identified. Generic health issues were only addressed by two clinics. Obstacles to current service provision and ideas for future developments were identified. CONCLUSIONS: This survey identifies a heterogeneity of provision of healthcare for adolescents with rheumatic disease and highlights the potential for further research and development. (+info)
A participant observation study using actors at 30 publicly funded HIV counseling and testing sites in Pennsylvania.
(62/2817)
OBJECTIVES: This study was designed to augment an evaluation of Pennsylvania publicly funded HIV counseling and testing sites, particularly of the staff-client interaction. METHODS: Actors were trained as research assistants and sent to 30 randomly chosen sites to be tested and counseled for HIV disease. Instruments based on Centers for Disease Control and Prevention (CDC) guidelines were designed and used to evaluate them. RESULTS: Data were generated that identified the range of compliance with CDC guidelines and state policy. Among the findings were that 10 of 30 sites required signed consents despite a state policy allowing anonymous testing. Only 17% of providers developed a written risk reduction plan, even though 69% of all sites surveyed by mail asserted that such plans were developed. Only 2 of 5 HIV-positive actors were offered partner notification services, even though 100% of sites visited by an interviewer claimed to offer such services. CONCLUSIONS: The findings suggest that although evaluation methods such as mail surveys and site visits are useful for evaluating the existence of appropriate policies and protocols and gathering baseline data, they might not be sufficient for assessing actual staff-client interaction. (+info)
A paired comparison of tuberculin skin test results in health care workers using 5 TU and 10 TU tuberculin.
(63/2817)
BACKGROUND: Historically, 10 TU has been employed in Australia and the United Kingdom to perform the tuberculin skin test (TST). However, this makes it difficult to compare the rates of TST positivity with other countries such as the USA who use 5 TU. To assess the impact of the dose of tuberculin on the TST a comparison was made of TST responses in health care workers given a TST with both 5 and 10 TU. METHODS: Two TSTs were performed simultaneously in each health care worker using 5 and 10 TU. Each dose was randomly assigned in a blinded manner to the right or left forearm and read at 48-72 hours by a single nurse who was blinded to the assignment of the 5 and 10 TU doses. RESULTS: A total of 128 health care workers were enrolled, 119 (93%) of whom had a past history of BCG vaccination. The overall mean difference in paired reaction sizes for the two doses was 1.5 mm with 95% limits of agreement of -3.6 to 6.5 mm. CONCLUSION: A slightly larger TST reading was seen with 10 TU than with 5 TU. The mean difference of 1.5 mm between the two doses should be considered when comparing rates of TST positivity between countries who use different doses of tuberculin to perform the tuberculin skin test. (+info)
A demand valve device decreases exhaust nitric oxide and nitrogen dioxide by nitric oxide inhalation with a nasal cannula in the human.
(64/2817)
To improve patients' quality of life and decrease pollution risks to medical personnel, we tested the usefulness of a nitric oxide (NO) inhalation system consisting of a nasal cannula and a demand valve in an open circuit system. To estimate the content of NO entering the lung with the open system, concentrations of NO and nitrogen dioxide (NO2) were measured in a mechanical lung model, and then nitrocylhaemoglobin (NO-Hb), methaemoglobin (Met-Hb), and nitrite (NO2-) + nitrate (NO3-) concentrations in venous blood were measured in eight healthy subjects. Exhaust NO and NO2 in the open system were also observed in 14 healthy subjects. In the lung model, NO concentration delivered with the open system was approximately 1/11 of that in the gas tank. Increases in Met-Hb and NO2- + NO3- with the open system showed that the concentration of delivered NO was approximately 1/9 of that in the gas tank. The open system reduced exhaust NO to 1/10 in human subjects. These data suggest that this NO inhalation system delivers sufficient NO to spontaneously breathing patients. In addition, these findings indicate that there is little environmental toxicity associated with the open circuit system. (+info)