RESUMEN
Pulmonary auscultation is a physical assessment skill learned by nursing students for examining the respiratory system. Generally, a sound simulator equipped mannequin is used to group teach auscultation techniques via classroom demonstration. However, nursing students cannot readily duplicate this learning environment for self-study. The advancement of electronic and digital signal processing technologies facilitates simulating this learning environment. This study aims to develop a computer-aided auscultation learning system for assisting teachers and nursing students in auscultation teaching and learning. This system provides teachers with signal recording and processing of lung sounds and immediate playback of lung sounds for students. A graphical user interface allows teachers to control the measuring device, draw lung sound waveforms, highlight lung sound segments of interest, and include descriptive text. Effects on learning lung sound auscultation were evaluated for verifying the feasibility of the system. Fifteen nursing students voluntarily participated in the repeated experiment. The results of a paired t test showed that auscultative abilities of the students were significantly improved by using the computer-aided auscultation learning system.
Asunto(s)
Auscultación , Instrucción por Computador , Educación en Enfermería/métodos , Enseñanza/métodos , Humanos , Pulmón/fisiología , Respiración , Procesamiento de Señales Asistido por ComputadorRESUMEN
The purpose of this study was to estimate the variance components associated with individual differences and various sources of measurement error of Caregiver Strain Index (CSI). A two-facet (item and occasion) crossed design generalizability study (G study) was conducted using a sample of 14 caregivers of cancer patients. Based on the findings of the G study, alternative decision studies were then designed to search for optimal generalizability of CSI. The measurement of CSI was not reliable with a single test. Averaging two or more measurements would make CSI scores more generalizable for either relative or absolute assessment of caregiver strain.