The purpose of this study was to construct and test a hypothetical model of clinical decision-making ability of nurses based on the Decision Making Process model and the Cognitive Continuum theory.

The data were collected from nurses working at 11 hospitals in Busan, Daejeon, and South Gyeongsang Province from June 30 to August 1, 2017. Finally, the data from 323 nurses were analyzed.

The goodness-of-fit of the final model was at a good level (χ ²/df=2.46, GFI=.87, AGFI=.84, IFI=.90, CFI=.90, SRMR=.07, RMSEA=.07) and 6 out of 10 paths of the model were supported. The clinical decision-making ability was both directly and indirectly affected by task complexity and indirectly affected by experiences, autonomy, and work environment. Specifically, it was strongly directly affected by analytical competency but was insignificantly affected by intuitive competency. These variables accounted for 66.0% of clinical decision-making ability.

The nurses’ clinical decision-making ability can be improved by improving their analytical competency. Therefore, it is necessary to organize nursing work, create a supportive work environment, and develop and implement various education programs.

The aim of the study was to explore nurses’ experience of person-centered relational care in the context of critical care.

Key interview questions were developed based on the human-to-human relationship model suggested by Travelbee. Data were collected through in-depth interviews with a purposive sample of 11 nurses having more than 2 years of working experience in intensive care units. An interpretative phenomenological analysis was conducted to analyze the data.

Four super-ordinate and nine sub-ordinate themes were identified. Emerged super-ordinate themes were as follows: (1) encountering a live person via patient monitoring systems; (2) deep empathic connection; (3) humanistic and compassionate care, and (4) accompanying the journey to the end. Study findings revealed that nurses in intensive care units experienced ‘balancing emotions’ and ‘authenticity’ in caring when entering human-to-human relationships with dying patients. The phenomenon of person-centered relational care in intensive care units was found to subsume intrinsic attributes of empathy, compassion, and trust, similar to the central concepts of Travelbee's theory.

The interpretative findings in this study provide deeper understanding of Travelbee's human-to-human relationship model. The technological environment in intensive care units did not hinder experienced nurses from forming human-to-human relationships. These themes need to be emphasized in critical care nursing education as well as in nursing management. The results of this study will contribute to understanding nurse-patient caring relationships in depth, and help improve the quality of nursing care in intensive care units.

The purpose of this study was to develop a scale to measure person-centered critical care nursing and verify its reliability and validity.

A total of 38 preliminary items on person-centered critical care nursing were selected using content validity analysis of and expert opinion on 72 candidate items derived through literature review and qualitative interviews. We conducted a questionnaire survey with 477 nurses who worked in intensive care units. The collected data were analyzed using exploratory factor analysis (EFA) and confirmative factor analysis (CFA) with SPSS and AMOS 24.0 program.

EFA was performed with principal axis factor analysis and Varimax rotation. The 15 items in 4 factors that accounted for 50.8% of the total variance were identified by deleting the items that were not meet the condition that the commonality should be .30 or more and the factor loading over .40. We named the factors as compassion, individuality, respect, and comfort, respectively. The correlation coefficient between this scale and the Caring Perception Scale was r=.57 (p<.001), which determined concurrent validity. The item-total correlation values ranged from .39 to .63, and the internal consistency for the scale was Cronbach's α=.84.

The reliability and validity of the 15 item person-centered critical care nursing scale were verified. It is expected that the use of this scale would expand person-centered care in critical care nursing.

The purpose of this study was to describe patients' anxiety in the ICU and to investigate related factors on the anxiety level.

An exploratory cross-sectional survey design was used. Forty-eight patients participated in the study. Questionnaires were asked to patients who had been cared in the ICUs.

Related to the anxiety level, the mean of the total anxiety score was 5.47, and 60% of the patients had moderate or severe level of anxiety. Patients from the coronary care unit had a significantly higher level of anxiety than those from surgical intensive care unit or pulmonary surgery care unit. Moreover, significantly different levels of anxiety were found among patients who had been stayed for 2, 3, or 4 days.

Patients who were from the coronary care unit or had been stayed longer (up to 4 days) in the ICU were significantly associated with higher anxiety level.

To determine and compare the perception among nurses and doctors of the roles and tasks of critical care advanced practice nurses (APNs) in order to establish standardized and formally agreed role criteria for such critical care APNs.

This study measured and analyzed the necessity of each of the roles and tasks of critical care APNs, as perceived by nurses and doctors, through a survey of 121 participants: 71 nurses in 7 intensive care units (ICUs) at a general hospital in Seoul, and 50 doctors who used ICUs. Data collection utilized a questionnaire of 128 questions in the following fields: direct practice (79), leadership and change agent (17), consultation and collaboration (15), education and counseling (11), and research (6).

Both the nurses' and the doctors' groups confirmed the necessity of critical care APNs, with doctors who frequently used ICUs indicating a particularly strong need. As for the priority of each role of critical care APNs, the nurses considered direct practice to be the most critical, followed by education and counseling, research, consultation and collaboration, and leadership and change agent. The doctors also considered direct practice to be the most critical, followed by education and counseling, consultation and collaboration, research, and leadership and change agent. There was a statistically significant difference between how the two groups regarded all the roles, except for the consultation and collaboration roles. As for the necessity of each role of critical care APNs, the nurses considered research to be the most necessary, followed by education and counseling, consultation and collaboration, leadership and change agent, and direct practice. The doctors, on the other hand, considered education and counseling to be the most necessary, followed by research, consultation and collaboration, leadership and change agent, and direct practice. The responses of the two groups to all the roles, except for education and counseling roles, were significantly different.

Nurses and doctors have different perceptions of the roles and tasks of critical care APNs. Thus, it is necessary for the combined nursing and medical fields to reach an official agreement on a set of criteria to standardize for the roles and tasks of critical care APNs.

The purpose of this study was to develop a critical thinking disposition scale for nursing students.

The developmental process was construction of a conceptual framework, development of preliminary items, verification of content validity, development of secondary items, verification of construct validity and extraction of final items. The conceptual framework and first preliminary 60 items were obtained through a review of relevant literature and the development of critical disposition scales by 10 researchers who had been studying critical thinking for one year. These items were reviewed by five specialists for content validity and finally 55 items were chosen. The data was collected from October 1 to 15, 2004 and was analyzed using factor analysis and Cronbach's alpha with the SPSS program. The subjects were composed of 560 Bachelor of Science nursing students from 8 nursing schools.

There were 35 final items which were sorted into 8 factors. The factors were identified as ‘ intellectual integrity(6 items)’, ‘ creativity(4 items)’, ‘ challenge(6 items)’, ‘ open-mindedness(3 items)’, ‘ prudence(4 items)’, ‘ objectivity(4 items)’, ‘ truth seeking(3 items)’ and ‘ inquisitiveness(5 items)’. The cumulative percent of variance was 55.107%. The reliability of the scale, Cronbach's alpha was .892 and the factors' ranged from .562-.836.

The result of this study could be used for measuring critical thinking dispositions of nursing students. However, for further validity and reliability, repeated research is necessary.

The main purpose of this critical ethnography was to examines the process and discourses through which family caregivers experience while caring for their sick family member in a hospital.

This was achieved by conducting in-depth interviews with 12 family caregivers, and by observing their caring activities and daily lives in natural settings. The study field was a unit for neurologic patients. Data was analyzed using taxonomy, discourse analysis, and proxemics. All research work was iteratively processed from March 2003 to December 2004.

Constant comparative analysis of the data yielded the process of becoming a successful family caregiver: encountering the differences and chaos as novice; constructing their world of skilled caregivers; and becoming a hospital family as experienced caregivers. During the process of becoming an experienced hospital family, the discourse of family centered idea guided their caring behaviors and daily lives.

The paternalistic family caregivers struggled, cooperated, and harmonized with the patriarchal world of professional health care system. During this process of becoming hospital family, professional nurses must act as cultural brokers between the lay family caring system and the professional caring system.

This longitudinal study was done to investigate critical thinking dispositions and critical thinking skills of nursing students enrolled in a 4-year baccalaureate program at a university in Korea.

The study used a longitudinal design. A convenience sample of 32 nursing students who were completing their 1st, 2nd, 3rd, and 4th year in a baccalaureate program at a selected university was included. The subjects completed the California Critical Thinking Dispositions Inventory (CCTDI), the California Critical Thinking Skill Test (CCTST), and a demographic questionnaire. Data was analyzed by descriptive statistics, repeated ANOVA, adjusted p-values, and Pearson's correlation coefficient with SAS 8.12.

There was statistically significant improvement according to academic year in the CCTDI total mean score (F=7.54, p= .0001) and subscales of Open-mindedness, Self-confidence, and Maturity. Contrarily, no statistically significant difference was found in the CCTST total mean score and subscales' score except Analysis.

There is no significant correlation between critical thinking dispositions and skills, so it will be necessary to repeat a study like this, and the translated instruments should be modified by considering Korean culture.

This study aimed at developing a critical pathway for the children undergoing tonsillectomy.

Six steps of critical pathway developmental process were used based on the literature review. The researcher reviewed 70 medical records of children who had tonsillectomy between January 4th and April 30th, 2001. They received 76 kinds of medical services during six average hospitalization days. Five of them had post-operative bleeding problem. A professional group carefully screened 67 out of 76 medical services and adopted them with five average hospitalization days as the critical pathway framework. This framework was applied to 34 children undergoing tonsillectomy during June 1st through August 21st, 2001.

The children who used the pathways with five average hospitalization days had post-operative bleeding problem. In other words, the group who utilized the critical pathway resulted in better outcomes compared to the group who did not use the tool.

Since the critical pathway is an efficient care management tool, nurses need to participate more positively participate in developing and utilizing the tool for other health problem.

To develop a Critical Thinking Skill Test for Nursing Students.

The construct concepts were drawn from a literature review and in-depth interviews with hospital nurses and surveys were conducted among students (n=607) from nursing colleges. The data were collected from September 13 to November 23, 2012 and analyzed using the SAS program, 9.2 version. The KR 20 coefficient for reliability, difficulty index, discrimination index, item-total correlation and known group technique for validity were performed.

Four domains and 27 skills were identified and 35 multiple choice items were developed. Thirty multiple choice items which had scores higher than .80 on the content validity index were selected for the pre test. From the analysis of the pre test data, a modified 30 items were selected for the main test. In the main test, the KR 20 coefficient was .70 and Corrected Item-Total Correlations range was .11-.38. There was a statistically significant difference between two academic systems (p=.001).

The developed instrument is the first critical thinking skill test reflecting nursing perspectives in hospital settings and is expected to be utilized as a tool which contributes to improvement of the critical thinking ability of nursing students.

The purpose of this study was to identify the features, risk scores and risk factors for deep vein thrombosis in critically ill patients who developed deep vein thrombosis in their lower extremities.

The participants in this prospective descriptive study were 175 adult patients who did not receive any prophylactic medication or mechanical therapy during their admission in the intensive care unit.

The mean age was 62.24 (± 17.28) years. Men made up 54.9% of the participating patients. There were significant differences in age, body mass index, and leg swelling between patients who developed deep vein thrombosis and those who did not have deep vein thrombosis. The mean risk score was 6.71(± 2.94) and they had on average 4.01(± 1.35) risk factors. In the multiple logistic regression, body mass index (odds ratio= 1.14) and leg swelling (odds ratio= 6.05) were significant predictors of deep vein thrombosis.

Most critically ill patients are in the potentially high risk group for deep vein thrombosis. However, patients who are elderly, obese or have leg edema should be closely assessed and more than one type of active prophylactic intervention should be provided.

The purpose of this methodological study was to examine the reliability and validity of a translated Korean version of the Critical Care Pain Observation Tool (CPOT) developed for assessment of pain in critically ill nonverbal patients.

A cross-sectional study design was used. Data were collected from a convenience sample of 202 critically ill patients admitted to a university hospital. Upon establishment of content and translation equivalence between the English and Korean version of CPOT, psychometric properties were evaluated.

The interrater reliability was found to be acceptable with the weighted kappa coefficients of .81-.88. Significant high correlations between the CPOT and the Checklist of Nonverbal Pain Indicators were found indicating good concurrent validity (r=.72-.83, p<.001). Data showed the area under the ROC curve of 0.86 with a cut-off point of 1, which resulted in 76.9% sensitivity and 88.6% specificity. The mean score of CPOT during suctioning was significantly different from that of before (t=-14.16, p<.001) or 20 minutes after suctioning (t=16.31, p<.001).

Results of this study suggest that the CPOT can be used as a reliable and valid measure to assess pain in critically ill nonverbal patients.

This study was designed to adapt a surgical wound care algorithm that is used to provide evidence-based surgical wound care in a critical care unit.

This study used, the 'ADAPTE process', an international clinical practice guideline development method. The -'Bonnie Sue wound care algorithm' - was used as a draft for the new algorithm. A content validity index (CVI) targeting 135 critical care nurses was conducted. A 5-point Likert scale was applied to the CVI test using a statistical criterion of .75.

A surgical wound care algorithm comprised 9 components: wound assessment, infection control, necrotic tissue management, wound classification by exudates and depths, dressing selection, consideration of systemic factors, wound expected outcome, reevaluate non-healing wounds, and special treatment for non-healing wounds. All of the CVI tests were ≥.75. Compared to existing wound care guidelines, the new wound care algorithm provides precise wound assessment, reliabilities of wound care, expands applicability of wound care to critically ill patients, and provides evidence and strength of recommendations.

The new surgical wound care algorithm will contribute to the advancement of evidence-based nursing care, and its use is expected as a nursing intervention in critical care.

The purpose of this study was to identify muscle atrophy in critically ill patients on ventilators. A comparison was made between limb circumferences and muscle areas on the day of admission to an intensive care unit (ICU) and on the 8th day after admission.

The data were collected from 30 critically ill patients using ventilators at S hospital ICU in Seoul during the period from October 2005 to April 2006. Limb circumferences and skinfold thickness were measured on the day of admission and on the 8th day after admission to the ICU. Limb circumferences and skinfold thickness were measured on the right mid-arm, right mid-thigh, and right mid-calf using a measuring tape and a skinfold calipers. Limb muscle areas were calculated by an equation after measuring limb circumferences and skinfold thickness. The data were analyzed by paired t-test and independent t-test.

1) Mid-arm circumference, mid-thigh circumference and mid-calf circumference on the 8th day after admission to the ICU were significantly less than those on the day of admission to the ICU, 2) Mid-arm muscle area, mid-thigh muscle area and mid-calf muscle area on the 8th day after admission to the ICU were significantly less than those on the day of admission to the ICU, 3) Steroid and vecuronium medication didn't affect changes in limb circumferences (mid-arm, mid-thigh, mid-calf) and muscle areas (mid-arm, mid-thigh, mid-calf) on the 8th day after admission to the ICU compared to the day of admission.

Limb muscle atrophy may occur on the 8th day after admission to the ICU in critically ill patients using ventilator.