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IV Fluid s

IV Fluids

What is Osmolality? * # of solutes or particles in the blood.
What is normal osmolality? 270-300 mOsm/kg
What is the percentage of total body water in Newborns, adult male, and adult females? Newborns 80%; Males 60%; Females 50%
What does an increase in osmolality indicate? * Less body water * Increase thirst
What are some examples of insensible water loss? * Sweat * Breathing * Evaportation through skin * Water loss through the lungs * it is not easily measured or is unmeasurable.
What is Osmosis? * It is the passive diffusion of Water across a membrane.
What is Tonicity? Osmolality
A fluid that is of the same osmolality as blood is called what? * Isotonic
What is a Hypotonic solution? * Water moves by osmosis from the vascular system into the cells.
What is a Hypertonic solution? * Water moves by osmosis from the cells into the ECF.
What is Hydrostatic pressure and explain its importance. * The force created by fluid within a closed system and it is responsible for normal circulation of blood.
What is Osmotic pressure and why is it important? * It is the power of a solution to draw water. Helps maintain fluid in the vascular space.
What is oncotic pressure? The force exerted by protein in the blood to pull water into the vascular (a type of osmosis).
In fluid shifting what is the 1st space? No fluid shifting
What is the 2nd space? Fluid moving into interstitial space
What is the 3rd space? Fluid moves into abnormal spaces.
What is a crystalloid? * Solutes that readily dissolve (e.g., electrolytes)
What is a colloid? * Larger molecules that do not dissolve readily (e.g. Proteins).
Crystalloids increase volume in which area(s)? Extracellular, and intravascular.
In what medical situations would Crystalloids be used to help? * * Shock * Hemorrhage * Severe vomiting/diarrhea * Mild hyponatremia * Metabolic acidosis -DKA
What are lactated ringer's (LR)? A crystalloid solution that is isotonic with blood.
When are lactated ringer's used? * Burn injuries * GI tract losses * Fistula drainage * Metabolic acidosis
What effects to colloids have? Same as hypertonic and crystalloids (expands blood volume; e.g. albumin)
Name two Hypotonic solutions. D5W and .45 NS
Name two Hypertonic solutions. 3% NS and 5% NS
Demonstrate the set-up of primary and secondary IV solutions FOR TEST. Review skills lab.
What is the IV flow rate to Keep Vein Open (KVO)? 10-30 mL/hr.
IV flow rate for maintenance is? 75-150 mL/hr.
Created by: zj mepn