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Biomedical subjects

C L Cason

Publications and source records attributed to C L Cason.

27 records · Page 2Linked to original sources
PubMedDate not supplied

Nurses' knowledge of pain management: implications for staff education.

Among the 217 nurses responding (one third of those queried), average scores on the NKAS were slightly higher (68%) than that reported in the literature but still inadequate. Nurses' greatest knowledge deficits were related to pharmacotherapeutics. Knowledge scores were uncorrelated with self-assessed level of knowledge about pain. Strategies for re-dressing these nurses' knowledge through Department of Nursing Education interventions are explored.

Adult↗
PubMedDate not supplied

Nursing the system. Key users are sometimes "out of the loop".

Among those with a particular interest in hospital information systems are those who teach nursing students at the college level. To get their views, Southern Hospitals interviewed four Nurse Scholars involved with nursing and research projects for universities across the South. In 1989, Atlanta-based vendors HealthQuest and HBO & Company of Georgia established the Nurse Scholars Program in an effort to help academia stay abreast of technology. It provides nurse educators with comprehensive instruction in emerging technologies and uses of automated patient care systems. The scholars are encouraged to share their new knowledge with students, faculty, practitioners and administrators so that future nurse executives will better understand and communicate what they need and want from information systems.

Appalachian Region↗
PubMedDate not supplied

Effects of backrest elevation and position on pulmonary artery pressures.

This repeated measures study identified each subject's baseline range of fluctuation in pulmonary artery pressures and used this information to evaluate the effects of changes in backrest elevation (0 degrees and 30 degrees) and position (supine and lateral) on pulmonary artery pressures. Sixteen hemodynamically stable patients were studied. Six measures of pulmonary artery pressure were obtained with subjects in the supine (flat) position. Pulmonary artery systolic pressures fluctuated from 2-16 mm Hg, pulmonary artery diastolic pressures from 0-11 mm Hg, and pulmonary artery mean pressures from 0-13 mm Hg. Only pulmonary artery diastolic pressures were not altered in a statistically significant way with backrest elevation. Even though backrest elevation produced clinically significant changes (those exceeding the subject's baseline range of fluctuation) in some subjects, no other changes in parameters of hemodynamic status were observed. These results suggest that pulmonary artery pressures may be obtained with backrests elevated. Since position changes produced both statistically and clinically significant changes in all pulmonary artery pressures, the use of lateral positions during pulmonary artery pressure measurement is not recommended.

Adult↗
PubMedDate not supplied

Effect of information on emotional responses during barium enema.

A quasi-experimental study was conducted to extend: 1) Johnson's findings by using a measure of anxiety proneness to control for individual variations in responding to stressful situations and 2) the applicability of Johnson's work to another procedure, barium enema. The subjects, 24 hospitalized patients, were assigned to one of three information conditions: sensation, procedure, or no information. Prior to the barium enema all subjects took the trait portion of Spielberger's State-Trait Anxiety Inventory to measure relatively stable individual differences in anxiety proneness. Two groups heard a taped measure of sensation or procedural information; the third group heard no information. After the barium enema, all subjects took the state portion of the State-Trait Anxiety Inventory to measure emotional responses during the barium enema. Subjects who received sensation information reported less anxiety than subjects who received no information or procedural information. However, the hypothesized relationships between the mean state anxiety scores for the three information groups were not found.

Adult↗
PubMedDate not supplied

Effects of information about a threatening procedure on patients' expectations and emotional distress.

A quasi-experimental study was conducted to examine the effects of information about an impending threatening event (barium enema) on subjects' expectations and the intensity of their emotional response to the event. Twenty subjects were assigned to one of two information conditions: sensation of procedure. Prior to receiving any information, all subjects completed a preinformation sensation inventory and the trait portion of the State-Trait Anxiety Inventory (STAI). A taped message of either sensation or procedural information was heard, followed by completion of the post-information sensation inventory. After the barium enema, all subjects completed the post-procedure sensation inventory and the state portion of the STAI. In neither the expected sensations (expectations) reported prior to hearing information or the responses provided after the procedure (actual experiences) were there significant differences between the two groups. However, after hearing the information, significant differences in reported expected sensations were found. Subjects receiving sensation information reported significantly less anxiety and expectations more congruent with their actual experiences than did subjects receiving procedural information.

Adult↗
PubMedDate not supplied

Changes in oxygen saturation during weaning from short-term ventilator support after coronary artery bypass graft surgery.

OBJECTIVE: To evaluate changes in oxygenation as measured by pulse oximetry (SpO2) and saturated venous oxygenation (SvO2) during weaning from mechanical ventilator support. DESIGN: Exploratory, pilot study. SETTING: Cardiovascular intensive care unit in a private 691-bed acute care medical center in the South. SUBJECTS: Ten adults between 50 and 76 years of age who had uncomplicated coronary artery bypass graft surgery. OUTCOME MEASURES: SpO2 and SvO2 obtained at start of each weaning event and each minute for 5 minutes thereafter. METHOD: Five discrete events associated with the unit's weaning protocol were studied: ventilator adjustments, continuous positive airway pressure trial, respiratory mechanics, removing continuous positive airway pressure and suctioning, and extubation. Weaning events, initiated by unit staff members, were based on subjects' arterial blood gases, SpO2, respiratory rate, blood pressure, heart rate, level of alertness, and respiratory effort. RESULTS: Both SpO2 and SvO2 changed with weaning. For some subjects these changes were clinically important: SvO2 fell by 10% or more, and SpO2 fell to or below 90%. The assessment parameters guiding the weaning process resulted in some weaning events being initiated when SvO2 was at or below 60%. CONCLUSIONS: Measures of SpO2 and SvO2 are sensitive to changes in oxygenation status during weaning. Although more study is needed, SvO2 measures provide valid information about oxygen status and can be used to guide weaning.

Aged↗