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Biomedical subjects

C Murdaugh

Publications and source records attributed to C Murdaugh.

14 recordsLinked to original sources

Differentiated group professional practice in nursing: a demonstration model.

This innovative professional practice model was developed to assist in the redesign of the current nursing care delivery system in hospitals. It is expected that this model will facilitate the promotion of professional practice and that the results will be positive ones for patients, nurses, and hospitals. As Barry and Gibbons wrote recently, "Changing circumstances have become so compelling that it is no longer a question of whether familiar systems need redesigning, but rather how soon and by what means a different system will take place of the existing one."

Arizona

Ethics in cardiovascular medicine. Task Force II: The relation of cardiovascular specialists to patients, other physicians and physician-owned organizations.

1. The American College of Cardiology acknowledges the continuum of changing societal, medical and economic perspectives affecting traditional medical ethics. Primacy of patient responsibility remains paramount to the cardiovascular specialist who at the same time should participate in the development of broader societal programs. 2. Medical decisions should be freely and jointly formulated by the patient and the cardiovascular specialist with appropriate sensitivity to such matters as mental competence, pertinent medical information and standards of care, sufficient time for contemplation, informed consent, patient right of refusal, physician right to refuse to provide inappropriate care and the right of patient, physician or third party payer to seek consultation or additional opinions. 3. The cardiovascular specialist should make a special effort to clarify and document patient preferences regarding end-of-life treatment through some form of advance directive. 4. The cardiovascular specialist bears a moral obligation to provide medical care to any patient who is HIV positive or has AIDS. 5. A conflict of interest occurs when a cardiovascular specialist places personal or financial interest ahead of the welfare and health of a patient. Professional accountability should be established through local or regional peer review. 6. The American College of Cardiology encourages and supports a renewed dedication to the principles of medical ethics, particularly in the field of cardiovascular disease. Cardiovascular specialists are encouraged to participate in the promulgation of medical ethics by teaching and by example, individually and with others.

Acquired Immunodeficiency Syndrome

Coronary artery disease in women.

Cardiovascular disease is the number one cause of death in American women over age 40. Following menopause, the risk for coronary artery disease (CAD) in women is the same as for men. In addition, the major factors that place men at risk are the same for women. However, differences exist in the presentation of symptoms, the ease of diagnosis of CAD, and the morbidity and mortality rates following myocardial infarction (MI), coronary artery bypass surgery, and angioplasty. Because of role differences in men and women, more attention must be paid to developing successful health-promoting and life-style-change strategies in women of all ages.

Adult

Recruitment issues in research with special populations.

Special populations have been underrepresented in cardiovascular research for many reasons. However, strategies are available to obtain greater numbers of underrepresented populations in research. These strategies may be complex, time consuming, and costly, but they are necessary to ensure that eligible minorities participate in research to identify the major cardiovascular risk factors and appropriate interventions.

Coronary Disease

Effects of pneumatic artificial heart driver on the rate of isovolumic pressure rise.

The aim of the research was to investigate the effects of three parameters of the artificial heart's performance on the (+) dP/dt max. Specifically, the effects of heart rate, left-sided drive pressure, and percent systole (the independent variables) on the (+) dP/dt max (the dependent variable) were examined. The study was conducted using a mock circulation which was connected to an artificial heart. Data were collected using the COMDU software developed for the computer which monitors the artificial heart. Stepwise regression analysis was used to test the three hypotheses. Hypothesis one stated the heart rate would significantly effect the (+) dP/dt max. The hypothesis was not supported. Hypothesis two stated the percent systole would significantly effect the (+) dP/dt max. Hypothesis two was also not supported. Hypothesis three stated the drive pressure would significantly effect the (+) dP/dt max. The hypothesis was supported as drive pressure accounted for 4% of the variance in (+) dP/dt max; however, the results were not clinically significant. Limitations in the study were multicollinearity among the independent variables, small sample size, and the inability of the mock circulation to represent human responses.

Heart Rate

Nursing research.

Explore the source record for details and available documents.

Nursing Care

Theoretical model testing to identify personality variables effecting preventive behaviors.

To test the preventive behavior model, the impact of perceived barriers and benefits and health value orientations on two health care activities (smoking and exercise) was examined. Data from 76 subjects who had taken part in a health screening program were analyzed using regression analysis. A reduced empirical model for exercise resulted, explaining 46% of the variance. However, only one variable that accounted for 7% of the variance was significant in explaining smoking behavior. Significant personality variables in the exercise model provide clues toward understanding psychological factors that may be operating to influence an individual's participation in health care activities.

Adolescent