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Biomedical subjects

D Adams

Publications and source records attributed to D Adams.

At least 289 records · Page 16Linked to original sources
PubMed1966

Transfer of an escape response from tail shock to brain-stimulated attack behavior.

Nine cats, each with two hypothalamic electrodes in sites which when stimulated produced either quiet attack or attack accompanied by certain forms of vocalization, were trained to escape from tail shock by jumping onto a stool. They were then tested for transfer of the escape response to brain stimulation. Stimulation of the seven sites that yielded quiet biting attack did not elicit the learned response of jumping onto the stool. Stimulation of eight of the 11 sites that yielded attack accompanied by vocalization did elicit the learned response. It was concluded that attack behavior elicited by brain stimulation should not be considered a special case of the response to aversive stimulation, but that attack and response to aversive stimulation involve independent but overlapping systems.

Aggression↗
PubMedDate not supplied

A behavioral inventory for professionalism in nursing.

The purpose of this article is to describe the development of an evaluative behavioral inventory based on Miller's Model for Professionalism in Nursing and to report results of an investigation of registered nurses (RNs) in eight western states. The Professionalism in Nursing Inventory was mailed to 1,600 computer-generated randomly selected names of RNs, resulting in 515 complete and usable inventories. Results indicated that the majority of respondents demonstrated professional behaviors in continuing education activities, autonomous quality assurance participation, community service, and a theory-based nursing practice. Behaviors not considered a priority with a majority of the respondents were publication, research activities, and participation in the constituent state organizations of the American Nurses Association. Approximately 4 per cent of the respondents commented that employing agencies and administrative (nursing) personnel were concerned with output, not professional behaviors. More than 91 per cent of these respondents believed that a self-evaluative instrument for professional behaviors was necessary and that the tool should be developed by nurses.

Adult↗
PubMedDate not supplied

Professionalism in nursing behaviors of nurse practitioners.

Little research on the level of professionalism of nurse practitioners has been published to date. These nurses are expected to practice relatively autonomously in delivering client care and therefore must monitor their own levels of professionalism. At a national conference, 502 nurse practitioners completed the Professionalism in Nursing Behaviors Inventory. Participants represented all of the states and the most common specialties of nurse practitioners. Nearly 68 per cent had been practitioners less than 5 years and were primarily employed in physicians' offices. The majority had received their master's degrees from schools with nurse practitioner curricula, and 8 per cent held doctorates. More than one half of the practitioners had written a research proposal or participated in a project within the past 2 years. In terms of autonomy, nearly 50 per cent of the nurses had written their own job descriptions. Maintaining certification motivated them to engage in some professionalism behaviors. Results indicated these nurse practitioners had high levels of professionalism. J Prof Nurs 17:203-210, 2001.

Adult↗
PubMedDate not supplied

Drug population in one thousand geographically distributed urine specimens.

Hundreds of drugs and other substances are excreted in urine. In a comprehensive drug screen, it is impossible to identify every detectable substance. In order to delineate the most commonly detected drugs, approximately 1000 urine specimens from geographically distributed clinical laboratories were analyzed for drug substances. Twenty-nine (29) clinical laboratories submitted up to 76 consecutive urine specimens found to be positive for substances other than nicotine and caffeine. Specimens were analyzed by thin layer chromatography and special procedures for salicylates, benzoylecgonine, PCP, benzodiazepines, and cannabinoid metabolites. Every specimen was also tested for opiates, PCP, and cannabinoid metabolites by an enzyme immunoassay procedure. The total number of drugs detected in 1000 specimens was 3014, an average of three drugs per specimen; and 110 different drugs were identified. Of these, 50 drugs accounted for 95% of the total detected; 21% of the specimens contained cannabinoid metabolites, and 4% of the specimens contained cocaine and/or benzoylecgonine. Most of the specimens were routine, and only 4% originated from comatose patients.

Humans↗
PubMedDate not supplied

Magnetic field dependence of 1/T1 of protons in tissue.

It is well established that the spin-lattice magnetic relaxation rate 1/T1 of solvent protons in homogeneous protein solutions increases dramatically as the magnetic field is reduced well below the traditional NMR range. For a 5% solution of protein of 10(5) Daltons, for example, 1/T1 increases from about 50% above the pure solvent rate at 20 MHz to five times the solvent rate at 0.01 MHz. At higher fields, the effect of protein on the relaxation rate decreases progressively toward zero. 1/T1 of solvent in erythrocyte suspension behaves similarly, indicating that extracellular water has ready access to intracellular protein. We now report analogous data for samples of various mammalian tissues: we find that the data can be accommodated within the conceptual framework developed earlier for analyzing homogeneous protein solutions. It appears that tissue water probes the macromolecular composition and structure in a tissue-specific fashion. The variation of 1/T1 with field differs for each tissue, and its magnitude at low fields varies by more than a factor of three, far more than does the water content of the tissues. The relevance to contrast in NMR imaging is discussed.

Adipose Tissue↗
PubMedDate not supplied

Managing delirium and agitation in elderly hospitalized orthopaedic patients: Part I--Theoretical aspects.

Managing behavioral disorders such as delirium and agitation while simultaneously attending to the acute needs of elderly patients is a challenge that confronts orthopaedic nurses on a daily basis. This will only increase in frequency and complexity as the new century dawns. Delirium and agitation affect morbidity, mortality, length of stay, and costs--in short, outcomes. To manage and care for these patients, orthopaedic nurses must first update their knowledge of acute disorders that can disrupt mental status and behavior, and the effects of systemic events on brain function. With the knowledge of the pathophysiology of delirium and agitation, nurses then need to refine their assessment and intervention skills. This article describes the phenomena of agitation and delirium in the elderly acute orthopaedic patient, outlines current perceptions regarding pathophysiology, and offers guidelines for prevention and intervention. An algorithm has been developed that can assist with the identification of at-risk individuals, causes of delirium, and early assessments in the acute care setting.

Aged↗
PubMedDate not supplied

Managing delirium and agitation in elderly hospitalized orthopaedic patients: Part 2--Interventions.

Delirium, a disorder of consciousness that may afflict over one-half of elderly surgical orthopaedic patients is a common sequela of surgery in the elderly. Agitation, either as an element of the delirium or dimension of a preexisting dementia, is another common behavioral problem that can confront the orthopaedic nurse in acute care. It is time now to tear down the barriers to intelligent and compassionate care of patients with agitation and delirium, including late or missed recognition and diagnosis, biases about what is "normal" and acceptable behavior in the elderly, and lack of familiarity with pharmacologic strategies. In Part 1 (Jan/Feb issue), current thinking about the phenomena was presented, including hypotheses about causation and pathophysiology. That foundation is intended to serve as the basis for the current discussion. The triad of interventions available to manage disorganized behavior in elderly orthopaedic patients is presented in Part 2. They include an extensive selection of pharmacologic options, a discussion of therapeutic use of self and environmental-organizational issues to address and consider on a case-by-case basis. Though it may be impossible to prevent behavioral decompensation during an acute orthopaedic admission, it is certainly possible to improve our performance to date, using a compassionate, intelligent, and inclusive approach with every patient.

Aged↗
PubMedDate not supplied

Condition specific antepartum testing: systemic lupus erythematosus and associated serologic abnormalities.

Antepartum fetal surveillance is well established in the optimal management of any pregnancy complicated by maternal systemic lupus erythematosus and/or its associated serologic abnormalities. Our experience in antepartum surveillance of the "lupus pregnancy" from 1980 to 1988 is reviewed. An overall perinatal mortality rate of 6.06% compares favorably to the total intrauterine death rate range usually reported for this disease.

Antibodies, Anticardiolipin↗
PubMedDate not supplied

Use of the code of ethics for accountability in discharge planning.

Nine selected items from the Code of Ethics for nurses are used to illustrate how the code can be used as an excellent resource for accountability with discharge planning. Research findings identify the need for expanded awareness of the code and how to apply it to the discharge planning process. Components of the teaching/learning process are compared to the code to suggest that nurses need increased educational preparation to be accountable for discharge planning.

Attitude of Health Personnel↗