A systems approach to the reduction of medication error on the hospital ward

AIMS: To discuss a potentially powerful approach to safer medication administration on the hospital ward, based on principles of safety developed in other high-risk industries, and consistent with recent national reports on safety in health care released in the United Kingdom (UK) and United States of America (USA). To discuss why punitive approaches to safety on the hospital ward and in the nursing literature do not work. BACKGROUND: Drug administration error on the hospital ward is an ever-present problem and its occurrence is too frequent. Administering medication is probably the highest-risk task a nurse can perform, and accidents can lead to devastating consequences for the patient and for the nurse's career. Drug errors in nursing are often dealt with by unsystematic, punitive, and ineffective means, with little knowledge of the factors influencing error generation. Typically, individual nurses are simply blamed for their carelessness. By focusing on the individual, the complete set of contributing factors cannot be known. Instead, vain attempts will be made to change human behaviour - one of the most change-resistant aspects of any system. A punitive, person-centred approach therefore, severely hampers effective improvements in safety. By contrast, in other high-risk industries, such as aviation and nuclear power, the systems-centred approach to error reduction is routine. CONCLUSIONS: Accidents or errors are only the tip of the incident iceberg. Through effective, nonpunitive incident reporting, which includes reports of near-misses and system problems in addition to actual accidents, the systems-approach allows the complete set of contributing factors underlying an accident to be understood and addressed. Feedback to participants and targeted improvement in the workplace is also important to demonstrate that incident data are being used appropriately, and to maintain high levels of on-going reporting and enthusiasm for the scheme. Drug administration error is a serious problem, which warrants a well-reasoned approach to its improvement.     

An ergonomic approach to reducing back/shoulder stress in hospital nursing personnel: a five year follow up

The purpose of the study was to determine the impact of an ergonomic program on perceived stress ratings, injury rates and patient care. After implementation of the ergonomic program, the perceived stress ratings by nursing staff were lower than those ratings at the control hospital and the patients felt more comfortable and secure during patient handling tasks than the patients at the control hospital. Eighteen months after ergonomic interventions, the back and shoulder injuries were reduced, and the lost workdays and restricted/transitional days were decreased. Five years after the implementation, the back and shoulder injuries continued to decrease as well as the lost workdays and restricted days. At the control hospital, the back and shoulder injury rates, the lost workdays, and the restricted days remained stable throughout the study period.     

A questionnaire study of the approach to the anorexia–cachexia syndrome in patients with cancer by staff in a district general hospital

Goals of work  This questionnaire study was designed to investigate understanding, assessment and management of cancer-related anorexia–cachexia syndrome (ACS) amongst hospital staff. Methods  Qualified nurses and doctors on general medical and surgical wards within a district general hospital were asked to complete a questionnaire enquiring about understanding of the term cachexia, routine assessment of commonly associated symptoms and approaches to management of three commonly associated symptoms (poor appetite, early satiety and dry mouth). Main results  One hundred seventeen questionnaires were distributed with 100 returned (86% response rate). Cachexia was most frequently described as weight loss (79%) and anorexia (49%). Some symptoms (including altered appetite, constipation, nausea and vomiting) were routinely assessed during admission or review of these patients. Some common symptoms (including mouth problems, early satiety) were much less likely to be enquired about. Management of the three key symptoms demonstrated a range of approaches with little consistency. Early satiety was particularly poorly managed, with 29% of staff being unable to recognise or treat it. Conclusions  The study highlights the variable understanding of ACS and the lack of standardised assessment and management tools amongst staff in an acute hospital setting. This is likely to lead to inconsistent, and perhaps inadequate, care of patients with palliative care needs. Greater awareness and basic pathways of care may help to improve the experience of ACS for patients with cancer. Electronic supplementary material  The online version of this article (doi:) contains supplementary material, which is available to authorized users.     

Validity of establishing pediatric reference intervals based on hospital patient data: A comparison of the modified Hoffmann approach to CALIPER reference intervals obtained in healthy children

Objectives

To compare pediatric reference intervals calculated using hospital-based patient data with those calculated using samples collected from healthy children in the community as part of the CALIPER study.

Methods

Hospital-based data for 13 analytes (calcium, phosphate, iron, ALP, cholesterol, triglycerides, creatinine, direct bilirubin, total bilirubin, ALT, AST, albumin and magnesium), measured on the Vitros 5600, collected between 2007 and 2011 were obtained. The data for each analyte were partitioned by age and gender as previously defined by the CALIPER study. Outliers in each partition were removed using the Tukey method. The cumulative distribution function (cdf) was then determined for each analyte value following which, the inverse cdf values of a standard Gaussian distribution were calculated. The analyte values were plotted against the inverse cdf of the standard Gaussian distribution. Piece-wise regression determined the linear portion of the resulting graph using the statistical software R. Linear regression determined an equation for the linear portion in each partition and reference intervals were calculated by extrapolating to identify the 2.5th and 97.5th centiles in each partition based on the inverse cdf values (which would correspond to the values − 1.96 and 1.96 of the Gaussian distribution). Using the 90% confidence intervals for the reference intervals defined by CALIPER and the Reference Change Value (RCV) as the criteria, these calculated reference intervals were compared to those reported previously by CALIPER. Reference samples were also measured on the Vitros 5600 analyzer in an attempt to validate the calculated reference intervals.

Results

In general, the reference intervals calculated from hospital-based data were generally wider than those calculated by CALIPER. None of the reference intervals calculated using the Hoffmann approach fell completely within the 90% confidence intervals calculated by CALIPER.

Conclusions

These results suggest that calculating pediatric reference intervals from hospital-based data may be useful, as a guide, in some cases but will likely not replace the need to establish reference intervals in healthy pediatric populations.