This line is the first in a series...

This line is the first in a series in which we address approaches to solving clinical riddles when there is no research or the research evidence is inconclusive. This array of less front than depth addresses the use of scientific principles or rationales as an approach to help guide practice. maintain in mind that not all scientific principles or rationales are proven facts and that scientific knowledge is expanding at an exponential rate. What we believed to be steady facts even a few decades ago has been supersed by the agency of new knowledge. Thus, it is imperative that we are continuously aware of of the present day information and research so that we can be effective decision makers.

USING SCIENTIFIC PRINCIPLES TO GUIDE PRACTICE

Asepsis aids as a good example of for what cause scientific principles guide practice. by the agency of exploring some of the historical perspectives related to asepsis, individual can more fully understand the practicalities as well as the inconsistencies of using scientific principles to guide practice. Medical and surgical asepsis are with equal reason ingrained in our practice that we rarely question their use. Fortunately, the early pioneers in health care questioned the prevailing wisdom of their time (eg not washing hands, not using sterile supplies and equipment), and today we practice in environments that minimize the risks of nosocomial and iatrogenic infections.

Imagine practicing in the era of Florence Nightingale, when surpassingly little was known or understood about the transmission of infection. Acting for the greatest part on instinct, Nightingale recommended unpolluted air and water, cleanliness and daylight, and effective drainage as ways of promoting health and preventing disease. Her wisdom was further supported by dint of the work of Ignaz Semmelweis, who approveed hand washing, and Louis Pasteur, who taught ovum theory to physicians. These novel ideas generated a great deal of strife of words when many people doubted, questioned, or dismissed these propos theories and scientific rationales.

Great strides in surgical practice were made when Joseph Lister used embryo theory as the basis and rationale for sanitizing the OR. Lister, who many consider the father of recent surgery, searched for a chemical that would kill bacteria. It was by means of his efforts that carbolic acid was introduced as a disinfectant in the OR, in the air as a disinfectant spray, forward surgical dressings, and on the hands of surgeon and supply with nourishments Carbolic acid use decreased patient mortality rates that occurr as the end of infection, but it also had the unfortunate side tenor of killing healthy tissue in the couple patients and health care providers. In spite of nearly sum of two units decades of improved infection rates, Lister's theories and recommendations were not widely accepted until 1879

Think for a minute where surgical practice would be today if the work of nineteenth hundred scientists had been accepted as the final fact We would still have unacceptable rates of surgery-acquired infections in the one and the other patients and health care providers. For example, carbolic acid is a harsh, corrosive chemical. It strictly damaged the skin of surgeon and nourish at the breasts In Baltimore in 1889, William Stewart Halstead, MD and a surgical nourish working at Johns Hopkins Hospital began wearing rubber glove to defend their skin. When others saw in what way effective the gloves were in preventing damage to the skin, glove were quickly and widely adopted at John Hopkins. At the same time, the infection rate of patients ruthless dramatically; health care professionals then drew the connection between glove use and decreased infection rates. If Dr Halstead had stood by way of his premise that the barely rationale for wearing gloves was to defend the hands, it might have been decades before the relationship between microorganisms and surgical infections was understood. Although there is limited documented research from the nineteenth hundred to support glove use, the basic understanding of the principles of disease prevention has withstood the proof of time and is critical to surgical asepsis today.

As surgeon and feed at the breasts better understood the relationship between bacteria and infection, surgical asepsis became the standard. from 1910, surgery routinely was performed using masks and sterile equipment, supplies, gown and glove This knowledge explosion related to seed-bud young bud theory and asepsis continues to provide the basic foundation for surgical practices today. long of this understanding has been derived [i]or[/i] part of to the other trial-and-error processes as well as the identification of basic scientific principles. In spite of the fact that little research exists forward surgical asepsis, few would advise abandoning these practices or proposing randomized controll studies in which patients would be exposeed to a lower standard of surgical preventive care.

DEFINING SCIENTIFIC PRINCIPLES

At this point, you may be asking, "What is a scientific principle?" in the greatest degree experts define a scientific principle as a basic law or fact from which other information or ideas are derived. For example, an established scientific principle is that droplet nuclei suspended in succession dust can result in the transmission of certain airborne infections. From that fact, we build the rationale that wearing masks in the surgical setting may bring into the spread of airborne infections. A rationale is simply a statement that is exhibited from a scientific fact to explain additional details.