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INTRAVENOUS THERAPY. REVISED 6 JAN 05. Terminal Learning Objective. Given a casualty in a combat environment and the standard field medical equipment and supplies, perform procedures for intravenous (IV) therapy to prevent further injury or death. (FMST.04.18) . Enabling Learning Objective.
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INTRAVENOUS THERAPY REVISED 6 JAN 05
Terminal Learning Objective • Given a casualty in a combat environment and the standard field medical equipment and supplies, perform procedures for intravenous (IV) therapy to prevent further injury or death. (FMST.04.18)
Enabling Learning Objective • Without the aid of references, given a description or list, identify medical terminology associated with IV therapy, per the student handout. (FMST. 04.18a)
Enabling Learning Objective • Without the aid of references, given a description or list, identify the characteristics of different types of IV fluids, per the student handout. (FMST.0418h)
Enabling Learning Objective • Without the aid of references, given a description or list, identify the use for specific IV fluids, per the student handout. (FMST. 04.18c)
Enabling Learning Objective • Without the aid of reference, given a description or list, identify the indications for initiating IV therapy, per student handout. (FMST.04.18b)
Enabling Learning Objective • Without the aid of reference, given a description or list, identify the contraindications for initiating IV therapy, per student handout. (FMST.04.18i)
Enabling Learning Objective • Without the aid of references, given a description or list, identify the equipment required for IV therapy, per the student handout. (FMST.04.18d)
Enabling Learning Objective • Without the aid of reference materials, given a description or list, identify the procedural sequence for IV therapy, per the student handout. (FMST. 04.18e)
Enabling Learning Objective • Without the aid of reference, given a description or list, identify potential complications of IV therapy, per the student handout (FMST. 04.18f)
Enabling Learning Objective • Without the aid of references, given a simulated casualty and standard field medical equipment and supplies, perform procedures for IV therapy, per the student handout. (FMST. 04.18g)
Terms / Definitions • Homeostasis • Physiological equilibrium, a balance of functions and chemical composition within the body
Terms / Definitions • Electrolyte • Ions that carry electric current • Vital to maintain homeostasis • Fluids containing electrolytes are called “Crystalloids”
Terms / Definitions • Colloids • Large molecules such as proteins • Hypertonic Volume Expanders • Blood plasma, serum albumin, etc. • Total Body Water • % of persons weight consisting of H2O
Terms / Definitions • Body Fluid Compartments • Intra-cellular fluid (ICF) • Fluid w/in the cell • Essential to electrolyte balance
Terms / Definitions • Body Fluid Compartments • Extra-cellular fluid (ECF): Fluid in the; • Intravascular (IVF) spaces - (Vessels) • Interstitial spaces
Characteristics of IV Fluids • Isotonic Solution: • Triggers least amount of water movement from IVF in/out of ICF and Interstitial compartments • NS (0.9%) • Lactated Ringers
Characteristics of IV Fluids • Hypotonic Solution: • Causes water to leave IVF compartment and enter ICF & Interstitial space • D5W • All solutions containing only water and dextrose
Characteristics of IV Fluids • Hypertonic Solution: • Draws water from the ICF and interstitial spaces into the IVF compartment
I.V. Solutions • Water and Glucose • Crystalloid • Colloid • Whole Blood or Blood Products
Crystalloids (Isotonic) • Effective, short term, volume replacement • Do NOT have O2 carrying capacity • Do NOT contain protein
Crystalloids (Isotonic) • After 1 hour, only 1/3 remains in cardiovascular system • Most common crystalloids • Normal saline • Fluid of choice in combat • Ringers lactate • Most physiologically adaptable solution available
Crystalloids (Isotonic) • Precautions • Always consider fluid volume overload • Excessive infusion of electrolytes may cause electrolyte imbalances • DO NOT use in patient’s with • Cardiac failure • Liver disease
Water and Glucose • These solutions are Hypotonic • Most common concentrations: • D5W – Fluid replacement and caloric supplementation • D50W – treats hypoglycemic (low blood sugar) in adults
Water and Glucose • Contraindications: • DO NOT use in HEAD INJURIES • Will cause cellular swelling • Precautions: • Volume overload • Electrolyte imbalance
Whole Blood • Available in combat, (ONLY in higher echelons of emergency care) • Must be ordered by an M.O. • Type O-Negative is supplied in combat and can be given without cross-typing
Whole Blood • Indications • Acute massive blood loss • Will resolve symptoms of hypovolemic shock and anemia • Note: Whole Blood is not suited for the following: • Shock without hemorrhage (Burns)
Indications • Primarily for treatment of a source of hypovolemia • Hemorrhage or Trauma • Dehydration • Burns
Indications • Diarrhea or Vomiting • Unable to tolerate fluids by mouth • Pass Medications • Maintain Nutrition
Contraindication • Absence of Signs and symptoms of Indications
EQUIPMENT • Needle and catheter • Large 16-18g for trauma patients • 20g for non-traumatic fluid replacement • IV solution • Administration set
EQUIPMENT • Tape • Constriction band • Alcohol/Betadine prep • 2x2 • IV pole
Procedure • Make your decision • Assemble and check gear • Ensure sterility of your equipment • Check all packaging for damage • Prepare the administration set • See following slides
Equipment Preparation • Remove tubing and IV fluid from their protective coverings
Equipment Preparation • Remove the protective tab from the spike port
Equipment Preparation • Remove the protective cover from the spike (over the inspection bulb) of the IV tubing
Equipment Preparation • Close the tubing by rotating the thumb lock to the closed position
Equipment Preparation • Assemble the IV tubing to the IV fluid • Insert spike into spike port • Puncture seal with the spike by using a twisting, pushing motion until spike is fully inserted
Equipment Preparation • Fill drip chamber • Remove air from tubing
VEIN SELECTION • Vein should be stable and accessible • Select a large springy vein • Work distal to proximal
Prepare site • Alcohol swab • Cleanse the area with an alcohol swab three times if able • Dry area • Don gloves
Insert Needle • Apply traction to the skin and vein to make those areas taught • BEVEL UP • Needle at 30 degree angle