Often referred to as party barges. Pontoon and deck boats are typically seen with multi-hulls, although there are also deck boats without pontoons, which have a monohull. Both boats are designed primarily for day use as an entertaining platform.
A ventricular assist device (VAD), also known as a heart pump, is a mechanical device that helps pump blood from the heart to the rest of your body. A VAD can be implanted in the chest or worn outside the body. If it is implanted, surgery is done to place it in the chest area. The pump part of the VAD is placed in a small space in your upper abdomen.
Volume of distribution (Vd) (definition) The volume necessary to hold all of the drug in the body at the same concentration which it is at in the blood/plasma. Not a real, physiological volume. High Vd indicates that the drug is widely distributed to extravascular tissues. Low Vd indicates that the drug is retained in the vascular compartment.