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Purpose: To determine the safety and feasibility of early physical therapy in the intensive care unit in a patient with biventricular assist device. Methods: Physical therapy started on the first postoperative day and continued till discharge including airway clearance, lower/upper extremity exercises, and mobilization. Heart rate (HR), respiratory rate (RR), systolic/diastolic/mean arterial pressures, peripheral oxygen saturation, and double product were recorded before treatment, after treatment, and 5 minutes after treatment. Results: In total, 15 sessions of physical therapy were implemented for a 41-year-old male patient during 21 days following implantation of a biventricular assist device. Normal physiological responses were seen in response to treatment. Heart rate increased significantly after treatment in comparison to pretreatment values (p = 0.02) and decreased significantly after 5 minutes (p = 0.03) and approached pretreatment values. Respiratory rate increased nonsignificantly after treatment and decreased significantly after 5 minutes (p = 0.001) and approached pretreatment values. Conclusion: Physical therapy in the intensive care unit in a patient with biventricular assist device resulted in significant increases within HR and RR in physiological limits. Ongoing monitoring of vital signs is recommended in order to observe physiological responses to early physical therapeutic interventions in the intensive care unit.Key Words: biventricular assist device, physical therapy, intensive care unit  相似文献   
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In this study, category‐based self and peer assessment were applied twice in a semester in an Elementary Science Teaching Methods course in order to assess individual contributions of group members to group projects as well as to analyze the impact of Individual Weighting Factors (IWF) on individual scores and individual grades. IWF were calculated by applying Conway et al.'s (1993 Conway, R., Kember, D., Sivan, A. and Wu, M. 1993. Peer‐assessment of an individual's contribution to a group project. Assessment & Evaluation in Higher Education, 18(1): 4554. [Taylor & Francis Online] [Google Scholar]) formula. The resulting individual scores were analyzed to find out the impact of IWF on individual scores and individual grades. It was found that the differentiation of individual scores was very large in both applications and caused dramatic changes in some of the students' grades. For this reason, the IWF had to be scaled down to decrease its effect on individual grades. After scaling down the IWF, more acceptable distribution of student grades was obtained.  相似文献   
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Educational Studies in Mathematics - This study aimed to investigate seventh-grade students’ visuospatial thinking processes in an art studio environment, where students were engaged with...  相似文献   
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Introduction

Urinary tract infection (UTI) is one of the most common types of infection. Currently, diagnosis is primarily based on microbiologic culture, which is time- and labor-consuming. The aim of this study was to assess the diagnostic accuracy of urinalysis results from UriSed (77 Electronica, Budapest, Hungary), an automated microscopic image-based sediment analyzer, in predicting positive urine cultures.

Materials and methods:

We examined a total of 384 urine specimens from hospitalized patients and outpatients attending our hospital on the same day for urinalysis, dipstick tests and semi-quantitative urine culture. The urinalysis results were compared with those of conventional semi-quantitative urine culture.

Results:

Of 384 urinary specimens, 68 were positive for bacteriuria by culture, and were thus considered true positives. Comparison of these results with those obtained from the UriSed analyzer indicated that the analyzer had a specificity of 91.1%, a sensitivity of 47.0%, a positive predictive value (PPV) of 53.3% (95% confidence interval (CI) = 40.8–65.3), and a negative predictive value (NPV) of 88.8% (95% Cl = 85.0–91.8%). The accuracy was 83.3% when the urine leukocyte parameter was used, 76.8% when bacteriuria analysis of urinary sediment was used, and 85.1% when the bacteriuria and leukocyturia parameters were combined. The presence of nitrite was the best indicator of culture positivity (99.3% specificity) but had a negative likelihood ratio of 0.7, indicating that it was not a reliable clinical test.

Conclusions:

Although the specificity of the UriSed analyzer was within acceptable limits, the sensitivity value was low. Thus, UriSed urinalysis results do not accurately predict the outcome of culture.  相似文献   
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