Sort (Seiri)
The first step involves identifying and removing unnecessary items from the workspace. In a histology lab, this may include outdated reagents, expired slides, and redundant equipment. By sorting through these items, the lab can eliminate clutter which helps in maintaining a focused and efficient environment.
Set in Order (Seiton)
Once the unnecessary items are removed, the next step is to organize the remaining items. Everything should have a designated place, from microtomes to staining jars. Proper labeling and storage of reagents, slides, and specimens are essential. This stage ensures that tools and materials are easily accessible, reducing the time spent searching for them and minimizing the risk of errors.
Shine (Seiso)
This phase focuses on cleanliness and maintenance. Regular cleaning schedules should be established for all work areas and equipment. This includes decontaminating work surfaces, cleaning instruments, and ensuring that all machinery is functioning correctly. A clean laboratory not only promotes safety but also prevents contamination of samples.
Standardize (Seiketsu)
Standardizing involves developing consistent procedures and protocols for maintaining the first three phases. In histology, this might include standard operating procedures (SOPs) for slide preparation, staining techniques, and equipment maintenance. Documentation and training are crucial to ensure that all staff members follow the established procedures uniformly.
Sustain (Shitsuke)
The final phase is about maintaining and improving the established standards. Regular audits, feedback, and continuous training ensure that the 5S principles are ingrained in the laboratory culture. Sustaining these practices is essential to prevent regression to old habits and to strive for continuous improvement.
