Abstract : Post-operative wound infections have been one of the factors for increasing cost, morbidity and mortality related to surgical operations and are increasingly becoming a major problem worldwide. This study examines the post-operative wound care practices among nurses in selected hospitals in Osun State. A descriptive cross-sectional design was adopted, a purposive sampling technique was used to select the respondents. Structured questionnaire was used to collect data and the analysis was done with Statistical Package for Social Sciences (SPSS) version 25 while descriptive and inferential statistics were used to present the data. Findings shows that more than half (60.5%) of the respondents had good post-operative wound care practices while every four out of every ten nurses (39.5%) in the study had poor post-operative wound care practices among nurses. 39.5% had poor post-operative wound care practices. The results also showed that (58.0%) have a positive attitude towards post-operative wound care practices among nurses. It was also revealed that above half of the respondents (51.6%) have good knowledge of surgical wound dressing while 24.7% had poor knowledge about surgical wound dressing. This study concluded that the more than half of the respondents have good practice of postoperative wound care There is no relationship between the knowledge of nurses on surgical wound care dressing and post-operative wound care practice.

Keyword : Post-Operative, Wound Care, Nurses, and Surgical Patients

Abstract : Purpose: This paper approaches the calibration procedure for EBT3 radiochromic films, and its precision, using a flat-bed scanner as a digitization system, for routine QA in a Superficial Therapy X-Ray machine. Methods: This paper analyzes precision in EBT3 radiochromic film calibration, using a flat-bed scanner as a digitization system, and describing routine control procedure within the framework of a quality assurance program for X-Ray equipment. Radiochromic films were cut into 5cm x 5cm squares, placed on 5cm of PMMA at 15cm source-film distance, and irradiated with several doses to obtain the calibration curve of net optical density (ODn) as a function of dose, and dose uncertainties were computed by residual analysis. Results: The calibration curve fits a fourth-degree polynomial function, with uncertainties of 2.10%, and 2.48% for the dispersion in the dose measurements in the films; we also considered a 3.5% uncertainty in dose measurements due to the use of an ionization chamber, for a net uncertainty (one sigma) of 4.77 % in the dose value. Conclusions: The calibration curve of the EBT3 films was obtained by a procedure that establishes the ODn as a function of the dose delivered by the X-Ray machine, based on the traceability of the dose.

Keyword : Superficial Therapy X-Ray, Radiochromic Film, EBT3, Optical Density, Calibration Curve