How long can sodium hypochlorite solution be used after it is prepared?

Sodium hypochlorite solution, once it is prepared, typically has a limited shelf life due to its propensity for degradation over time. The correct timeframe for its effectiveness is usually within 24 hours after preparation. This is because sodium hypochlorite can break down, losing its potency as it interacts with light, heat, and organic material.

Using sodium hypochlorite within 24 hours ensures that it maintains the necessary concentration for effective disinfection purposes. After this period, the solution may not provide the intended antimicrobial activity, which is critical in healthcare settings for maintaining hygiene and preventing infections.

The other options suggest longer durations, which do not align with the conventional guidelines for the use of sodium hypochlorite solutions in healthcare or sanitation practices. Adhering to the 24-hour guideline helps facilities ensure safe and effective disinfection processes.