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Intravenous Therapy West Coast University Week 7
RN Skills Laboratory Intravenous Therapy West Coast University Week 7
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Objectives IV therapy overview Type of fluids
IV drop factors & calculations IVPBs IVPs Central Lines Blood and Blood Products TPN
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IV Therapy IV therapy – peripheral Side affects
Admission criteria in hospital Surgical, transfusion patients Hydration, restoring fluids/electrolyte imbalance Administration of drugs Side affects Bleeding, infiltration, infection, hearing loss, bone marrow suppression, kidney and heart damage Is not long-term therapy and more expensive than other routes
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Fluid Management Thin people 50-70% water Obese people 50% water
Elder 46-52% water Two main compartments Intracellular (64%) Extracellular (36%) ¾ interstitial ¼ plasma
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Fluid Management Physiological homeostasis
Fluid movement done by osmotic pressure (holding on) Hydrostatic pressure (letting go) Plasma uses osmotic pressure (why?) Kidneys are the primary regulator of fluids Usually produces 1-2L/24h Must produce a minimum of mL/24h
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Fluid Management Homeostatic Mechanisms Thirst to CNS
Illness, LOC, age changes thirst mechanism Antidiuretic hormone (ADH) – hypothalamus Extracellular volume is concentrated Fluid retention by hemorrhage, cardiac output, trauma, pain, fear, surgery, dehydration Aldosterone – adrenal cortex Reabsorbs Na & H2O = changes electrolytes Na exchanges for K or H Kidneys and the angiotensin system Renin – angiotensin I – angiotensin II Renin circulates in the body, converts plasma proteins to in the liver to vasoconstrictor called angiotensin I, this enters the lungs and converts to angiotensin II – this works on the adrenal cortex to secrete Aldosterone
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Fluid Management - Tonicity
Hypertonic Increased solutes in relationship to plasma D5.9%NS D5LR D5.45%NS Hypotonic Decreased solutes in relationship to plasma .25%NS .45%NS 2.5%Dextrose Isotonic Same tonicity as plasma .9%NS D5W LR Renin circulates in the body, converts plasma proteins to in the liver to vasoconstrictor called angiotensin I, this enters the lungs and converts to angiotensin II – this works on the adrenal cortex to secrete Aldosterone
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Venipuncture Site selection Gauge needle Supplies Procedure
Charting – location and identify vein used Renin circulates in the body, converts plasma proteins to in the liver to vasoconstrictor called angiotensin I, this enters the lungs and converts to angiotensin II – this works on the adrenal cortex to secrete Aldosterone
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Supplies The pump The drip factor (varies by manufacturer) Microdrop
60gtt/mL Macrodrop 20gtt/mL 15gtt/mL 10gtt/mL The volume control set The filter Renin circulates in the body, converts plasma proteins to in the liver to vasoconstrictor called angiotensin I, this enters the lungs and converts to angiotensin II – this works on the adrenal cortex to secrete Aldosterone
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Formulas Flow rate Total Solution Drops per minute = mL/hr
# of hours to run mL/hr x gtt factor gtts/min = 60 mins
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Secondary Infusions Piggybacks - IVPB Used for mediations
Check medication Check capability Stop primary, flush, infuse, flush and restart primary Bactrim – don’t mix (usually D5W) Dilantin – only in NS
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Intravenous Line Injection
Pushes - IVPs Dilute whenever possible KNOW YOUR DRUG Digitalis – usually monitored Benzodiazepines (do not mix or dilute) Clamp, flush, push, flush, unclamp Flush, push, flush SASH
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Central Venous Access Types
Peripherally Placed PICC Tunneled Groshong (same as PICC only tunneled) Triple Lumens Hickmans, Boviacs Ports
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Insertion Sites Neck Chest Arm Jugular Subclavian Bacilic Cephalic
Anticubital
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SAFETY NO SCISSORS ONCE INSERTED PREVENT INFECTION
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Site Care First 7 days (or if discharge) Use 2x2 gauze
NO betadine ointment Then q72h or if soiled Check policy
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Tubing & Cap changes Both q72h with fluids Blood change both
After 2-3 units TPN (PPN) change both q24h Change caps q blood draws NO LABEL – change both
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Blood drawing Access line with prefilled 10cc NS Flush
Draw back 10cc blood in same syringe (discard) New syringes – draw up sample Change cap Flush with 10cc NS (heparin??)
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CVC Side Effects Phlebitis Infection Pheumothorax
mechanical vs bacterial Infection Pheumothorax Superior vena cava syndrome
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Flushing Know the following for all Peripheral Lines Central Lines
Manufactures Guidelines Policy/Protocol Peripheral Lines 3cc NS Central Lines PICC: 10cc NS (No Heparin) Central Line: 10cc NS & Heparin 100u/cc (3cc) Tunneled: Same as Central Line (Groshong see PICC) Ports (Should have primary line) Needles -Huber (non-coring) -Change every Friday -Flush when needle remove and not reinserted -use Heparin 100u/cc (5cc)
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Blood Administration Have saline infusing with Y-set up
Use 170 micron filter Double check At lab/blood bank At bed side Monitoring Prior, 5min after start, 15min after start then q30m until completed Should infuse over 1-2 hours
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The Blood System ABO blood group system Universal Donor
O lacks A & B antigen Universal Recipients AB lacks anti-A & anti-B antibodies
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Blood Products Whole blood Packed red cells Granulocyte concentrates
Platelet concentrates Fresh frozen plasma Cryoprecipitate Clotting factors - Factor VIII / IX
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Complications of Transfusions
Complications of blood transfusion Haemolytic reactions (immediate or delayed) Bacterial infections from contamination Allergic reactions to white cells or platelets Pyogenic reactions Circulatory overload Air embolism Thrombophlebitis Clotting abnormalities
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Anaphylaxis Reaction Management
Usually occurs soon after start of transfusion Presents with circulatory collapse and bronchospasm Management Discontinue transfusion and remove giving set Maintain airway and give oxygen
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Autologous transfusion
Is the use of the patients own blood Particularly useful in elective surgery Accounts for 5% of transfusions in USA Reduces the need for allogeneic blood transfusion Reduces risk of postoperative complications (e.g. infection, tumor recurrence)
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Total Parenteral Nutrition
Pharmacist may do formulation If dextrose >10% - need CVC Monitor blood glucose Monitor electrolytes Weigh qd Use filters 1.2micron with lipids .2micron without lipids Know who to “ramp up and down”
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TPN precautions Check compatibility of medications
Don’t play “catch-up” No blood
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