Adults need to have inguinal hernia repair surgery in the following situations. 1  Hernias that contain a loop of intestine without blood supply (strangulated hernias) require emergency surgery. Hernias that contain a loop of intestine without blood supply (strangulated hernias) require emergency surgery. 2  Hernias that contain a trapped loop of intestine (incarcerated hernias) need to be repaired as soon as possible to avoid strangulation.
These are known as KVI (Known Value Items). These are sold in two ways. Normal KVIs virtualy have a price fixing agreement (which is illegal and known as a cartel). In effect everyone fixes their price to the market price so there is no advantage in going to a cheap shop for them.
kVA: apparent power. kVA is a measure of apparent power: it tells you the total amount of power in use in a system. In a 100% efficient system kW = kVA. However electrical systems are never 100% efficient and therefore not all of the systems apparent power is being used for useful work output.