Conclusion
The goals of development of PWT were precise determination of weaning process time and prevention of complications that resulted from delayed or early weaning process and reducing its related costs. This may lead to an increase in quality of the given services and patients’ recovery, and eventually, enhances the efficiency of professional services. This tool may be a primary design and it is suggested to be compared with other existing tools in further studies and be evaluated concerning its preciseness.
Finally, it is suggested to develop a separated specific tool for each ICU ward.