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:
A gastroscopy often takes less than 15 minutes, although it may take longer if it's being used to treat a condition. It's usually carried out as an outpatient procedure, which means you won't have to spend the night in hospital.Before the procedure, your throat will be numbed with a local anaesthetic spray. gastroscopy is a procedure where a thin, flexible tube called an end oscope is used to look inside the oesophagus (gullet), stomach and first part of the small intestine (duodenum). It's also sometimes referred to as an upper gastrointestinal endoscopy. The endoscope has a light and a camera at one end.