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GCN N170 IV Fluids

N170 IV Fluid Study Aid

QuestionAnswer
Diffusion Movement of molecules from a solution of higher concentration to a solution of lower concentration
Osmotic Pressure Water movement across a semipermeable membrane which is caused by the solution of higher solute concentration exerts pressure to move water across the membrane to equalize the concentration of the solution
Colloid Osmotic Pressure The pull of H2O from interstitial spaces into the vascular compartment caused by plasma proteins
Colloids Large protein molecules that do not dissolve in true solutions
Solutes Substances that dissolve in liquids
Solvent The component of a solution that can dissolve a solute.
Filtration The process of movement of fluid and solutes across a membrane from one compartment to another.Movement if from area of higher pressure to lower pressure.
Osmosis Movement of water across cell membranes from area of less concentration to area of greater concentration=H2O movement to dilute the concentration
0.9% NaCl Normal SalineIV fluid compatibile with most IV medications
Define Isotonic Solution A solution in which the solutes and solvent are balanced.IV fluid therefore remains in the vascular compartent expanding vascular volume.
Purpose of Isotonic Solutions Used to expand volume and maintain normal tonicity
Types of Isotonic Solutions 0.9% NaCl,Lactated Ringers, & D5W (D5W is isotonic on initial administration but when metabolized expands the intracellular and extracellular fluid compartments.)
Define Hypotonic Solution Solvent exceeds solute - has lesser concentration of solutes than plasma Treats cellular dehydration via a fluid shift from the vascular compartment into the cells.
Purpose of Hypotonic Solutions Used to dilute excess serum electrolytes; Promotes elimination by the kidneys
Types of Hypotonic solution 0.45% NaCl
Define Hypertonic Solution Solutes exceed solvent - higher concentration of solutes than plasma. Causes a fluid shift from the cells into the vascular compartment therby expanding the vascular volume
Purpose of Hypertonic Solutions Used to correct electrolyte imbalances
Types of Hypertonic solutions D5.9 NaCl,D5 LRD5.45 NaCl
Syringe Pump Use to infuse medications directly from a syringe. Can be programmed in mL/hr or units/hr
PCA Patient Controlled AnalgesiaAllows patient to self administer IV medication to control pain.
Infusion Pump IV device that maintains flow in mL/hr by displacing IV fluid at the prescribed rate via pressure.
Gravity IV IV rate is calculated in drops per minute to deliver prescribed mL/hr
Nursing Implications with Isotonic IVF administration Assess for signs and symptoms of hypervolemia: Bounding Pulse, Shortness of Breath, Distended Neck Veins
Nursing Implications with Hypotonic IVF administration Do not administer to clients at risk for thirsd space fluid shift of accumulation of EXF in a body space - can result in circulatory volume loss and potential for organ failure, or increased intracranial pressure.
Nursing Interventions for clients receiving IVF Monitor Electrolytes, Monitor I&O, Assess Cardiac and Pulmonary status, Monitor infusion site.
Created by: mmaze