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Biomedical subjects

L Wilkes

Publications and source records attributed to L Wilkes.

14 recordsLinked to original sources

Nurse researcher: always a researcher, sometimes a nurse.

A number of theoretical papers have highlighted the concept of the duality and dichotomy of roles when nurses are carrying out research in the clinical arena. The conflicts that can occur are between the roles of researcher and nurse and in the balance between research integrity and the welfare of the individual. There are various personal accounts in the literature of nurse researchers' experiences of unclear role expectations when doing research. There appears to be no consensus on how nurse researchers should handle these varying expectations. No comparative analysis of the reflections of a collective of nurse researchers on role expectations in different clinical contexts was found in an extensive literature search. This paper attempts to do this by analysing stories of a small group of nurse researchers in different clinical contexts. Data were analysed from written stories and audio-taped interviews with nurse researchers about moving from the researcher to the nurse role in doing clinical research. Thematic analysis indicated that the participants' reactions could be classified as either those of a nurse researcher, always the researcher, or as the nurse researcher, sometimes the nurse. There were no distinct differences in relation to research topic, methodology or context. The study highlights the fact that nurses need better research education, team and management support when conducting research and opportunities to debrief after encountering mixed role expectations in the field. Open debate amongst nurse researchers about role delineation is essential to both novices and experts for them to share their experiences and their solutions.

Attitude of Health Personnel↗

Stories about breast cancer in Australian women's magazines: information sources for risk, early detection and treatment.

Sixty articles in five Australian women's magazines were analyzed for journalistic qualities, metaphors, narrative features and accuracy of clinical facts related to risk, early detection and treatment of breast cancer. The stories were features, news features or soft news stories. The stories reflected the 'good news' editorial style of women's magazines. A dominant theme in the stories was that early detection of breast cancer is crucial and equals survival. While there were few inaccuracies in the stories, there was little detail of treatment modalities, an emphasis on lifestyle as a risk factor and a prevailing message that a genetic history of breast cancer means you will get it. A major implication of the findings is that nurses, who provide information to women, must be aware of the goals of journalists and the educational power of narrative logic of stories in women's magazines.

Journal Article↗

Malignant wound management: what dressings do nurses use?

This paper reports on the findings from the first part of a three-phase project that aimed to identify nursing strategies used in the management of malignant wounds. The difficulties relating to the management of these wounds and the significant physical and psychological impact on patients are described. A quantitative postal survey aiming to identify the types of dressing used in the care of malignant wounds was sent to specialist nurses working in oncology and palliative care in New South Wales, Australia. Additional qualitative data showed that the major issues were coping with odour and meeting the financial costs of the dressing products. The long list of products compiled for this research demonstrates the complexities nurses face when selecting dressings for the management of malignant wounds. Furthermore, there are no clear recommendations to guide nursing practice. This study provides a framework for subsequent phases of the project and will hopefully lead to the development of guidelines for best practice in malignant wound management.

Bandages↗

Empowerment through information: supporting rural families of oncology patients in palliative care.

A research project examining the support needs of families caring for a relative in palliative care was conducted in New South Wales in 1997. Data were collected from 19 families and 10 specialist palliative care nurses from eight centres throughout New South Wales using audio-taped interviews. The findings show that information was one of the most important support needs for families to enable them to effectively care for their sick relative. The information provided needed to meet the individual and varying needs of families at different stages of their palliative care journey. Often the families described not knowing what their information needs were until a crisis occurred. Lack of information on a range of areas, from practical resources to providing physical care and managing medications, was problematic. Health professionals need to take responsibility in determining if families are aware of the information available, identify the most appropriate medium for this material and provide it at the pace and time wanted by the individual family.

Aged↗

The future of palliative care nursing research in Australia.

Nursing research in palliative care is becoming more important as cost effectiveness and evidence-based practice are becoming mandatory. Fifty-nine published and unpublished projects relating to nursing research on palliative care in Australia between 1990 and 1996 were reviewed. Findings indicated that nurses working in palliative care in Australia are interested in researching a range of topics using varied methods. The nurses' primary interests appear to be their own professional issues and management of the patient's pain. Little research on families/carers of palliative care patients was evident. There is a need for future research to focus on projects that justify the nurse's role in the palliative care team, show that nursing interventions for symptom control affect patient outcomes and prove nurses are integral to the psychosocial and spiritual wellbeing of the patient and family during the palliative care journey.

Australia↗

How do patients perceive support from nurses?

Patients found support in the clinical friendship of nurses. The nurses instilled a sense of normality into their activities, creating a supportive atmosphere. Patients expressed a need for reciprocity in their relationship with the nurses. This relationship should be balanced and sustainable.

Adult↗

The specialist breast care nurse: an evolving role.

The role of the specialist breast care nurse has not previously been described in the Australian context. A study was undertaken, utilising the Delphi technique and focus group interviews to determine the key elements of the role and to describe how these role elements are enacted by the nurses incumbent in these positions in six Australian states. Three rounds of questionnaires to 16 expert nurses established a consensus view as to the essential elements of the specialist breast care nurse's role. The 11 role elements that became significant during analysis of these data were: specialist nurse, supporter, educator, counsellor, adviser, team member, resource person, caregiver, public advocate, manager and researcher. Focus groups were held with nurses from each state and the findings allowed enhancement of the data from the questionnaires. Analysis of the interview data allowed a fuller description of how the nurses actualised their role. This data showed that the specialist breast care nurse co-ordinated the care of the woman and her family during the breast cancer journey. Integral to the role was the support for the woman and her family. It is concluded that in order to perform successfully in the role nurses require specialist education in supportive care, counselling, pathology and treatment of breast cancer, a broad knowledge of oncology nursing, management, research and teaching techniques.

Attitude of Health Personnel↗

Metropolitan researchers undertaking rural research: benefits and pitfalls.

Can or should metropolitan residents research their rural counterparts and if they do are there inherent pitfalls or benefits? Throughout the history of social and anthropological research there has been debate on the insider-outsider/native-stranger controversy as to who should carry out the field work. This discourse will explore the author's personal experiences in the context of planning a rural health project, entering the field, accessing the informants, interviewing the informants and leaving the field.

Anthropology↗

Supportive care for women with breast cancer: Australian nurses' perspective.

A research project was undertaken to describe how the support needs of women who have had treatment for breast cancer were being met in New South Wales, Australia. Data were collected from both the women and the nurses who cared for them. The findings from the first part of the study examined the nurses' perceptions of the women's needs and how they as health professionals, fulfilled these needs. Analysis was both qualitative and quantitative. Seventy-eight nurses responded to a questionnaire and 15 were interviewed. The findings indicated that the nurses perceived information on disease process and physical aspects of the disease as essential to supporting the women with breast cancer. While they saw providing emotional support to the women as important the nurses themselves often lacked the time and skills to provide it.

Attitude of Health Personnel↗

Euthanasia: a comparison of the lived experience of Chinese and Australian palliative care nurses.

This paper reports on a study which investigated whether nurses from Eastern and Western cultures hold differing definitions of euthanasia and different perspectives of the effect of their attitudes to euthanasia on professional relationships with patients and colleagues. The focus of the study was the lived experience of Chinese and Australian nurses working in palliative care. The results indicate that there were differences between these two groups in their definitions of euthanasia. Lived experience obtained from both groups revealed conflict with patients and colleagues, and a lack of opportunity to discuss the ethical issue of euthanasia in the workplace.

Adult↗

Phenobarbital pharmacokinetics in obesity. A case report.

A morbidly obese woman [190 kg total bodyweight (TBW)] was admitted to hospital with a rapidly progressing wound infection. Over the next 2 weeks the patient developed congestive heart failure, acute renal failure, septic shock and multiple seizure episodes. Intravenous phenobarbital was added to phenytoin therapy to achieve seizure control. A total loading dose of phenobarbital 3700 mg (19.5 mg/kg TBW) was administered in 3 divided doses. The initial dose of 1100 mg resulted in a serum phenobarbital concentration of 6.3 mg/L 5h postinfusion, a second 1100 mg dose increased the concentration to 13.1 mg/L 1h postinfusion and a final dose of 1500 mg resulted in a 22.5 mg/L concentration at the end of the infusion. A phenobarbital maintenance regimen of 120 mg every 12h was then started. Peak serum concentrations of 19.8 and 17.8 mg/L were measured. All of the available serum phenobarbital concentrations and dosage amounts were fitted with least-squares nonlinear regression analysis to a 1-compartment model. An apparent volume of distribution (Vd) of 154.9L (0.82 L/kg TBW), total body clearance (CL) of 29 ml/min (1.74 L/h) and elimination half-life of 61h were determined. Our case report suggests that the dose of intravenous phenobarbital should be calculated using TBW. Additional studies are needed to precisely define the appropriate dosage weight, serum concentrations and clinical efficacy associated with intravenous phenobarbital in morbidly obese patients.

Adult↗

Clinical pharmacokinetics of metronidazole and other nitroimidazole anti-infectives.

Metronidazole was first introduced for the treatment of trichomoniasis. Its therapeutic use has subsequently been expanded to include amoebiasis, giardiasis and, more recently, anaerobic infections. Most of the early pharmacokinetic studies employed nonspecific assays such as microbiological and chemical assays. These assays were not able to differentiate the parent drug from the metabolites or other interfering substances. Pharmacokinetic data obtained through the use of specific chromatographic techniques provide the basis for this review of recent pharmacokinetic findings concerning metronidazole and other nitroimidazole antibiotics. When given intravenously or orally at usual recommended doses, metronidazole attains concentrations well above the minimum inhibitory concentrations for most susceptible micro-organisms. The drug has an oral bioavailability approaching 100%. Rectal and vaginal administration results in a smaller amount of drug absorption and lower serum concentrations. Metronidazole has limited plasma protein binding but can attain very favourable tissue distribution, including into the central nervous system. The drug is extensively metabolised by the liver to form 2 primary oxidative metabolites: the hydroxy and acetic acid metabolites. The kidney is responsible for the elimination of only a small amount of the parent drug; however, normal excretion of the 2 metabolites is dependent on the integrity of kidney function. The metabolism of metronidazole was found to vary among patient groups. Preterm and term infants have lower total body clearance (CL) and prolonged elimination half-lives. However, children older than 4 years old were observed to have pharmacokinetic parameters similar to those in adults. Reduced CL was also observed in children who are malnourished. Elderly patients have reduced renal excretion of both the parent drug and hydroxy metabolite. Pharmacokinetic parameters in pregnant patients were not significantly different from those in nonpregnant women; however, the drug is distributed into breastmilk and the infant will be exposed to the drug through the nursing mother. Patients undergoing gastrointestinal surgery or having enteric diseases and those who are hospitalised or critically ill also have altered pharmacokinetics. Metabolism of the drug is reduced in patients with liver dysfunction, giving delayed production of metabolites. In contrast, renal failure has little effect on the elimination of the parent drug, but affects the excretion of the metabolites more significantly. Haemodialysis was found to remove a substantial amount of the metronidazole while the effect of peritoneal dialysis was more limited. Energy and protein deficient diets as well as occupational exposure to gasoline did not alter metronidazole pharmacokinetics. However, the effect of alcohol consumption on metronidazole CL requires further study.(ABSTRACT TRUNCATED AT 400 WORDS)

Aged↗

Immunoregulation of asthma: control of T-lymphocyte activation in the respiratory tract.

Allergic asthma results ultimately from inappropriate responses to non-pathogenic airborn antigens by the respiratory tract T-cell system. In order to understand how sensitization to inhaled antigens develops, it is necessary to precisely define the tissue microenvironments within which T-cells occur in the respiratory tract, and to analyse the factor(s) which regulate their local activation. This review focuses upon recent data on the distribution of T-cells and antigen presenting cells within the lung and airway tissues of man and experimental animals, and examines the available information on their responses to antigenic stimulation. We argue that in the steady state, respiratory tract T-cells are tightly regulated by a series of inherent and acquired immunosuppressive control mechanisms, which normally limit local T-cell activation to situations where antigenic exposure is accompanied by an inflammatory stimulus, such as the case with incoming pathogenic microorganisms.

Allergens↗

Concept mapping: promoting science learning in BN learners in Australia.

BACKGROUND: We reviewed the process of using concept mapping as a methodology to teach science to RNs in a bachelor degree of nursing program in Australia. METHOD: The technique was used for two classes of students in the science unit during 1995 with work packages and independent student learning being the focus of the unit. RESULTS: Both instructors and students found the experience mainly positive. It helped the students become more independent learners, have a greater confidence in their knowledge of science, and allowed their understanding of science in their practice to become more meaningful and personalized. For the instructors it allowed them to concentrate on students with learning difficulties because they had less face-to-face teaching hours. Major issues arising from the process related to how to balance science content and the techniques of concept mapping and how to more effectively assess the learning outcomes of the students. CONCLUSION: Concept mapping is a useful technique to link science and nursing practice. Not only can it be used in academic programs to teach the science underlying practice, it can be used in the clinical area to teach patients. As a technique it works well in staff development and continuing education where the focus is on elucidating the rationale for inuring practice and providing evidence for the value of this practice.

Australia↗