Popularly, it is most often construed to mean the life expectancy at birth for a given human population, which is the same as the expected age at death. However, technically life expectancy means the expected number of years remaining to live, and it can be calculated for any age.
Try not to worry if you've been referred for a colposcopy. It's very unlikely you have cancer and any abnormal cells won't get worse while you're waiting for your appointment. What happens during a colposcopy. A colposcopy is usually carried out in a hospital clinic. It takes about 15-20 minutes and you can go home the same day. During the procedure:
Endoscopy can take from 15-30 minutes. The procedure can take more or less time and varies from person to person. The patient will be in the Operating Room for 20-45 minutes for an upper endoscopy, and 30-120 minutes for a colonoscopy. Many patients have both an upper endoscopy and colonoscopy under the same anesthesia, which takes 40-120 minutes. http://www.cincinnatichildrens.org/health/info/abdomen/procedure/gi-endoscopy.htm. I had an endoscopy last month and the actual proceduare was only about 10 min because it was normal.