Following are examples of three metamorphic rocks and a list of their uses. Marble is a metamorphic rock that is used to make floor tiles, counter tops and it is carved into statues and was used extensively in the building of the Roman Colosseum and other historic buildings. Slate is another metamâ¦.
A hex key, Allen key or Allen wrench is a tool of hexagonal cross-section used to drive bolts and screws that have a hexagonal socket in the head (internal-wrenching hexagon drive).
What is Heparin Lock (heparin flush)? Heparin is an anticoagulant (blood thinner) that prevents the formation of blood clots. Heparin flush is used to flush (clean out) an intravenous (IV) catheter, which helps prevent blockage in the tube after you have received an IV infusion. Heparin flush should not be used to treat or prevent blood clots in the body. A separate heparin product is available to use for this purpose.