Unit 8 Smeltzer Chpt 14

an acid-base imbalance characterized by an increase in H+ concentration (decreased blood pH). A low arterial pH due to reduced bicarbonate concentration is called metabolic acidosis. A low arterial pH due to increased PCO2 is respiratory acidosis

fluid tension within the extracellular fluid or intracellular fluid that describes the relationship between the solutes and water, primarily determined by fluid osmolarity

physiologic pump that moves fluid from an area of lower concentration to one of higher concentration; It requires adenosine triphosphate for energy

an acid-base imbalance characterized by a reduction in H+ concentration (increased blood pH). A high arterial pH with increased bicarbonate concentration is called metabolic alkalosis; a high areterial pH due to reduced PCO2 is respirator alkalosis

the process by which solutes move from an area of higer concentration to one to lower concentration; does not require expenditiure of energy

maintenance of a constant internal equilibrium in a biologic system that involves positive and negative feedback mechanisms

the pressure created by the weight of fluid against the wall that contains it. In the body, this pressure in blood vessels results from the weight of fluid itself and force resulting from cardiac contraction

a solution with an osmolality higher than that of serum

a solution with an osmolality lower than that of serum

a solution with the same osmolality as serum and other body fluids. Osmolality falls within normal range for serum (280-300 mOsm/kg)

the number of osmoles (the standard unit of osmotic pressure)per kilogram of solution. Expressed as mOsm/kg, osmolality is used more often than the term osmolarity to evaluate serum and urine

the number of osmoles (the stand unit of osmotic pressure) per liter of solution. It is expressed as milliosmoles per liter (mOsm/L); describes the concentration of solutes or dissolved particles

the process by which fluid moves across by which fluid moves across a semipermeable membrane from an area of high solution concentration; the process continues until the solutes concentrations are equal on both sides of the membrane