10 most extreme places on Earth. A hydrostatic mower is a lawnmower that operates on a system of hydraulics rather than using belts and gears to run the machine. It is powered by a hydrostatic transmission, which is made up of a hydraulic pump and a hydraulic motor.
A central venous catheter, also called a central line, is a long, thin, flexible tube used to give medicines, fluids, nutrients, or blood products over a long period of time, usually several weeks or more. A catheter is often inserted in the arm or chest through the skin into a large vein.
Correct answer - A. The proximal lumen of a pulmonary artery catheter is correctly positioned when it is in the right atrium. This lumen is used for fluid administration, blood sampling, and monitoring of right atrial pressure, which is needed to calculate systemic vascular resistance.