Zoning in the Operation Theatre Complex â Explained! By Raghavendra Prasad. The OT suite is a potential source of hospital infection in general and wound infection in particular. The suite has to be designed with the aim of minimising the risk of hospital infection being brought into the suite. image source: ccbs4.com. Therefore, the whole OT suite is planned on the concept of four zones, predicted on the types of activities, patterns of circulation and degree of sterility to be maintained. These zones are the disposal zone, protective zone, clean zone, and sterile zone.
Read on to find a range of facts, trivia and other interesting information about thunder. Thunder is the sound caused by lightning. The intense heat from lightning causes the surrounding air to rapidly expand and create a sonic wave that you hear as thunder.
In order to understand thunder causes, one needs to know about lightning first. Well! Lightning is the electricity discharged during a thunderstorm. Lightning is caused due to build-up and discharge of electrical energy in the thunderstorm clouds, which average about 15,000 to 25,000 feet above sea level. Lightning usually occurs within clouds, between the cloud and air or between the ground and cloud.