Final answer:
The required actions are calibration and maintenance checks of scientific instruments and sensors upon installation, annually, or after major maintenance. This ensures accuracy and safety in both environmental and medical settings.
Step-by-step explanation:
Upon installation of any scientific instrument or sensor, and at least annually thereafter, or after any major maintenance, a series of checks should be performed. These checks are critical to ensure the accurate functioning of the equipment. They typically include the calibration of the device, where one would measure and record data like temperature, pH, conductivity, and dissolved oxygen at their respective sites. Similarly, after events that may affect the environmental quality, such as an outbreak of infections, a comprehensive cleaning and maintenance program is essential to prevent problems like the growth of biofilms within systems such as air conditioning units.
In the medical field, equipment checks are vital to patient safety. For example, before and after procedures, it is necessary to confirm that all items are accounted for and that the equipment is functioning correctly, like ensuring the needle, sponge, and instrument counts are complete and that any specimens are correctly labeled.