Heart Murmurs, Winter 2002
Harvard Medical School logoHeart Murmurs, Winter 2002Children's Hospital Boston logo
    Beyond Nightingale:
    The Science of Contemporary Nursing

    By Martha A.Q. Curley, RN, PhD, FAAN
    Director, Crital Care and Cardiovascular Nursing Research

    Martha Curley, RN, PhD, FAAN Over the past decade, the nursing profession has experienced significant change. Ten years ago hospitals were restructuring and reengineering nursing positions out of staffing grids; today, extraordinary efforts are in place to both recruit and retain experienced nurses at the bedside. Given this schizoid history, it's not surprising that it has been challenging to both entice new talent into the field and re-enchant experienced nurses with their careers.

    Linking Patient Outcomes to Nursing Autonomy
    One strategy that may help strengthen the profession during this unsettled period is taking action to foster the science of clinical nursing to better support an autonomous and accountable practice that is clearly linked to improved patient outcomes. Autonomous decision making is a hallmark of any profession. Nursing autonomy has long been recognized as a major source of nursing satisfaction. In fact, autonomy is an essential attribute of the culture of excellence characteristic of what are known as magnet hospitals, those recognized for their ability to both recruit and retain nurses.

    Within the past five years, several large research studies have provided evidence linking autonomous nursing practice to improved patient outcomes. This evidence supports nurses' assuming accountability for managing aspects of nursing care that require ongoing vigilance and titration, such as enteral nutrition, sedation assessment and titration, wound care, ventilation weaning, extubation readiness testing, and family support. Every day, for instance, cardiovascular nurses monitor and treat potential primary and secondary injuries related to a congenital defect or disease process. Nursing's impact on patient outcomes is seldom obvious. But this was not always the case.

    Clinical Inquiry in Nursing
    The birth of professional nursing is often attributed to Florence Nightingale, a nurse serving in the Crimean War who systematized data-keeping practices. Nightingale's calculations of mortality showed that an improvement of sanitary methods could reduce patient deaths and her hypothesis proved correct. Her work stimulated significant breakthrough thinking on disease prevention: hospitalized patients no longer experienced 43% mortality due to preventable infections.

    Over a century and a half later, clinical inquiry is still considered an essential nursing competency. By definition, clinical inquiry is the ongoing process of questioning and evaluating and then providing informed practice; it's about clinical innovation through the application of evidence and experiential learning. In practice, nurses at varying levels of expertise identify aspects of care that are important for quality monitoring. They contribute to the development of evidenced-based algorithms, decision trees and protocols, and they use an evidenced-based process to evaluate current practices and to make recommendations for best practices. In addition, nurses develop and/or participate in studies to evaluate patient-care issues, products and technology. Over the past year, for example, the Nursing Critical Care/Cardiovascular Clinical Practice Group at Children's reviewed and implemented modifications based upon the program-based core metric reports that describe quality care. They reviewed best practices and made recommendations on many clinical issues, including the insertion and maintenance of nasojejual feeding tubes, the obtaining of arterial and central venous blood specimens, and eye-care routines. The group also systematically evaluated a superfluous system that was found to be inadequate to meet the unique needs of the pediatric patient.

    The Science of Nursing
    The science of nursing is unique. Because of the nature of nursing, both qualitative and quantitative scientific methods are equally important. The method used depends upon the research inquiry-questions derived from direct patient care, from observing recurrent clinical problems, from noting variations in practice and knowledge to practice gaps.

    The American Nurses Association acknowledges four essential features of contemporary nursing:

    1. Attention to the full range of human experiences and responses to health and illness
    2. Integration of objective data with knowledge gained from understanding of the patient's subjective experience
    3. Application of scientific knowledge to the process of care
    4. Provision of caring relationships that facilitate heath and healing.

    Importantly linked to the science of nursing are the phenomena of concern, which for the nursing profession include three primary issues: the prevention of illness, the alleviation of suffering, and the protection, promotion and restoration of health in the care of individuals, families, groups, communities and populations. Nurses within the Children's Hospital Cardiovascular Program are currently conducting nursing research studies aimed at all three levels of concern. For example, Nancy Braudis, RN, MS, CPNP, Clinical Nurse Specialist, is taking the lead in conducting a clinical research study that will help clinicians determine how best to initiate enteral nutrition in infants with hypoplastic left heart syndrome. It is hoped that Braudis' research will prevent protein calorie malnutrition in this high-risk group. In the intensive care unit, Patricia Lincoln, RN, MSN, Clinical Nurse Specialist, and Beverly Small, RN, Level III Staff Nurse, are working to better understand and help alleviate the suffering that parents experience as they wait to deliver their infant with a known congenital heart defect. The two are evaluating the extent to which parents find comfort in the prenatal tour provided by the clinic and intensive-care nursing staffs. Valerie Poppleton, RN, BSN, Staff Nurse II, is evaluating how best to restore the health of patients after cardiac surgery by taking the lead in a study investigating factors associated with iatrogenic chemical withdrawal in infants after cardiac surgery.

    Future Support for Nursing Science
    The current state of nursing science that supports pediatric cardiovascular nursing is young. Programs of nursing research in pediatric cardiovascular nursing (defined as nurse-led research generating at least five data-based publications in the same topical area) are few. We're endeavoring to change that at Children's by providing nurses within the cardiovascular program the opportunity to use an evidenced-based process to help them ask focused clinical questions, find the best evidence to answer the questions, critically appraise the evidence, and then apply valid and useful evidence in their practice. Nurses interested in undertaking independent research can enter the clinical research course that, upon completion, should result in a finished proposal ready for review by the Clinical Investigation Committee.

    Current research priorities for cardiovascular nursing are those that improve patient outcomes, specifically, care that creates safe passage for patients and families. Florence Nightingale once said that the purpose of nursing is to put the patient in the best position for nature to act upon him. This still includes creating a "safe" environment for patients to be sick in, and rescuing patients from potential complications and threats.



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