It begins by rocks being weathered into soil by weathering agents such as water and the sun. The soil is then eroded into rivers by surface runoffs after precipitation. The soil is then transported by the river into water bodies where they fall to the bed as sediments. As the sediments stay long and more sediments settle, applying pressure to the underlying layers, they compact into the sedimentary rock in a process called Lithification.
Osmotic pressure is defined as the pressure that must be applied to the solution side to stop fluid movement when a semipermeable membrane separates a solution from pure water.
a nurse must check for blood return. prior to any administration of drug via implanted port it is crucial that nurse for any blood return. if there is no any blood return nurse should hold the drug until patency is obtained established again.
