Y. Dawne, Content Blogger, Diploma in Journalism, Amsterdam, Netherlands
Answered Feb 07, 2019
The correct answer to this question is C.
However, the use of mercury manometers/McLeod gauges is discouraged due to the toxic nature of mercury and safety issues involving the storage, use, and replenishing of mercury-containing devices. Consider using electronic and mechanical gauges that offer continuous and convenient vacuum level monitoring. Operate vacuum pumps only in places with good ventilation.
Due to the heat generated by operating pumps, do not store volatile, corrosive, unstable, or flammable substances near them. Suctioning is an important part of daily patient care and in many cases can be a potentially lifesaving procedure. A thorough understanding of the physics involved in creating suction, the factors affecting flow rate, and the clinical applications of negative pressure will make the procedure more effective and as safe as possible.