IV THERAPY P ART I Catherine Luksic BSN,RN. W HAT IS IV THERAPY ? Intravenous – into the vein...
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Transcript of IV THERAPY P ART I Catherine Luksic BSN,RN. W HAT IS IV THERAPY ? Intravenous – into the vein...
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IV THERAPYPART I
Catherine Luksic BSN,RN
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WHAT IS IV THERAPY ?
Intravenous – into the vein
Administration of substances (fluids) directly into the vein
Parenteral route
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PN SCOPE OF PRACTICE: IV THERAPY
State of Pennsylvania – requirements Satisfactory completion of Board approved IV therapy
course LPN complies w/ policies/procedures of institution Review of policies/procedures q 12 mos.
Functions of PN Perform venipuncture Administer IV fluids **As of 7/2012 – LPN
may May NOT administer: administer & maintain
Antineoplastic agents TPN, lipids Blood products Titrated medications IV push medications
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PN SCOPE OF PRACTICE: RULES AND REGULATIONS
Refer to Handout
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LEGAL ISSUES
Informed Consent Pt. has right to refuse treatment If pt. is incompetent or unable to give consent,
legally authorized rep. may consent Coercion of rational adult patient to place an IV
catheter constitutes assault & battery Manual of IV Therapeutics, Phillips, 2010
Nurse must comply w/ acceptable nursing standards established by facility, as well as state/federal guidelines Infusion equipment, administration of meds,
monitoring of pt., documentation, etc. If an act of malpractice causes harm, legal
action can be initiated
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INDICATIONS FOR IV THERAPY
Fluid & Electrolytes Maintenance Replacement – fluid or electrolyte deficit Restoration - ongoing losses. (i.e. drains, NGT’s,
severe diarrhea, vomiting, burns)
Medications antibiotics, potassium, insulin, heparin, etc.
Nutrients TPN, PPN
Blood Products PRBC’s, FFP, Platelets
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ADVANTAGES OF IV THERAPY
1. Bioavailability is immediate Drug enters circulation immediately, permits access
to site of action 2. Absorption into bloodstream is complete
and reliable 3. Large doses can be delivered at a
continuous rate 4. No “first pass” effect in the liver
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DISADVANTAGES OF IV THERAPY
1. Adverse reactions may occur – can be life
threatening If medication administered too quickly Allergic reaction
2. Increased risk of complications Extravasation Vein irritation (phlebitis) Systemic infection Air embolism
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THE HEART
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BLOOD VESSELS
Arteries - carry blood away from heart. Branch off into smaller arteries eventually into capillaries.
OXYGENATED BLOOD
Veins - blood from capillaries flow into veins, carry blood back to the heart
UNOXYGENATED BLOOD
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BLOOD VESSEL WALLS
Tunica intima - innermost layer. Continuous with the endocardium.
Tunica media - middle layer. Smooth muscle and elastic tissue.
Tunica adventicia (externa) - tough outer layer.
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BLOOD VESSEL WALLS
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BLOOD VESSEL WALLS
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ARTERIES VS. VEINS
Middle layer (tunica media) much thicker in artery
Arteries contract & relax Due to high pressure and thicker muscle layer
Pressure much less within veins. Veins have one-way valves to direct blood
flow toward the heart. Veins store blood (70% of blood volume).
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ARTERIES: VEINS:
Thick wall (tunica media)
Lacks valves Pulsates Bright red blood High pressure
Thin wall valves present
approx. every 3 in. No pulsation Dark red blood Lower pressure
*pulsation may be seen in jugular vein
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VEINS
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VEINS
Used for IV therapy
Peripheral (arms/hands): Cephalic (upper and lower) Basilic Median (antecubital) Metacarpal *First choice for site selection
*allows for increased mobility *less risk of phlebitis
(Burton textbook recommends forearm veins – to avoid nerve/tendon damage in hands ???)
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PERIPHERAL VEINS – UPPER EXTREMITY
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FACTORS TO CONSIDER
Adipose tissueEdemaColor
? Adequate tissue perfusion
Hydration ? Dehydration, volume overload, normovolemic
Tissue elasticityBruising, rashes, breaks in skin
Avoid these areas
Sensation ? Lack of, can pt. feel “pain”
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VEINS
Refer to handout: Veins Practice identification of peripheral veins in
classroom Learn to properly apply tourniquet to upper
extremities
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VENOSCOPE: VEIN FINDER
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IV ACCESS
Peripheral - Located in peripheral veins of upper (and sometimes lower) extremities Can be placed by nursing (qualified LPN’s &
RN’s)
Central - Located in large vessels near heart (ie, subclavian, internal jugular, femoral) Can only be placed by physician or specially
trained practitioners
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PERIPHERAL IV
Smaller vessels Slower blood flow Easy access Veins of hands, arms most commonly used Metacarpal, cephalic, basilic, accessory cephalic,
median, upper cephalic Needs to be changed regularly
Every 48-72 hours, according to policy2011 Infusion Nursing Standards of Practice –
rotate peripheral IV catheters based on clinical condition vs. set time frame
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CENTRAL IV ACCESS
Higher risk of life-threatening complications Larger vessels More turbulent blood flow Care includes sterile dressing changes and
flushes Used if peripheral access not possible, or
for long-term use. Percutaneous, tunneled, or implanted. Includes PICC lines (peripherally
inserted central catheter)
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CENTRAL IV LINES
Usually located in subclavian vein, jugular vein
Can also have access through cephalic, basilic, antecubital and axillary veinsPICC lines
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PICC LINE
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CENTRAL IV LINE
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CENTRAL IV LINE
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IV SOLUTIONS
Bottle vs. Bag
Types of Solutions
Tonicity
Electrolyte Solutions
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SOLUTION CONTAINERS
Bottle - Not commonly used Meds that cannot be in plastic
Advantages: Very easy to visualize solution and to see calibrations
Disadvantages: BREAKS. Easier to contaminate. Takes more storage space.
Examples: Nitroglycerin, Albumin, Lipids Lipids are also stable in special plastic
Requires tubing w/ vent
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IV BOTTLE
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SOLUTION CONTAINERS
Plastic - Most common container Atmospheric pressure collapses bag , forces fluid out.
Advantages: Easy to store. Not greatly affected by temp fluctuations.
Disadvantages: Can be punctured. Some meds can adhere to plastic.
**ALWAYS inspect bag/bottle before use
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TYPES OF SOLUTIONS
Colloids - Pulls fluid into intravascular space, volume expanders Albumin – treat low BP/shock, provides protein
Considered to be a blood product Dextran – to prevent venous thrombosis during OR Hespan (hetastarch)
Similar to albumin
Crystalloids - Used for hydration, most common ** Saline, Dextrose
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TYPES OF SOLUTIONS
Blood and blood products Restore blood volume or components PRBC’s – acute blood loss, anemia Hg <8.0 FFP – replace coag factors, will reverse effect of
coumadin (PT/INR elevated) Platelets – thrombocytopenia, control bleeding Whole blood – rarely used, restores blood
volume
LPN cannot admin. but can monitor pt. during infusion
Beware of transfusion reaction
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TYPES OF SOLUTIONS:BLOOD PRODUCTS
Physician order & consent requiredType and crossmatch required (ABO type,
Rh group)Only compatible with 0.9% NS **
Dextrose can cause hemolysisFrequent VS, monitor pt. continuously for
first 15 min.2 RN’s must check blood product before
initiating infusion
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TYPES OF SOLUTIONS
Transfusion Reactions 1. Hemolytic: DANGEROUS, RBC’s attacked by immune system – cells burst
Bleeding (urine), chest pain, back pain, low BP, chills May be a delayed reaction, usually immediate
2. Febrile: N/V, fever, chills, headache, chest pain
3. Allergic Itching, SOB, wheezing, possible rash
4. Anaphylaxis: DANGEROUS Wheezing/stridor, SOB, low BP, cyanosis, anxiety
5. Circulatory Overload Low SP02, tachycardia, high BP, dyspnea
ALWAYS STOP THE TRANSFUSION IMMEDIATELY
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IV NUTRITIONAL SUPPORT
TPN – Total Parenteral Nutrition: IV infusion of amino acids, vitamins, electrolytes, and minerals Usually high dextrose concentration Used when GI system cannot be used for feeding LPN can administer ** High dextrose concentration (>10%) can damage
veins, usually given via central vein
Intralipids - intravenous infusion of fat (fatty acids) essential fatty acid is linoleic acid, needed for proper
metabolism. IV lipids are “white” Lipids can be “piggybacked” with TPN
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IV NUTRITIONAL SUPPORT
Increased dextrose level of TPN can lead to increased microbial growth
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TPN & LIPIDS
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FLUID COMPARTMENTS IN THE BODY
Intracellular : fluid inside cells of the body High concentrations of potassium(K+),
phosphate, and magnesium ions 2/3 of body water
Extracellular: fluids outside cells Includes interstitial & intravascular
compartments Contains high concentrations of sodium, chloride,
and bicarbonate ions 1/3 of body water
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ELECTROLYTES
Sodium (Na+)Major extracellular cationNormal 135-145 meq/L
Calcium (Ca+) – extracellular cation Chloride (Cl-)
Major extracellular anion Bicarbonate (HCO3) – extracellular Magnesium (Mg+) – intracellular cation Potassium (K+)
Major intracellular cationNormal 3.5-5.0Hyperkalemia = serious danger !
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IV SOLUTIONS
Osmosis: regulates fluid & electrolyte balance = movement of water through SPM from area of lower concentration (solutes) to higher concentration
SPM’s = tunica intima, capillary walls, and cell membranes of RBC’s
Rate of osmosis – depends on osmotic pressure within tissues/cells Draws water through SPM to more concentrated area IN or OUT of cell
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IV SOLUTIONS
Tonicity = osmolarity or concentration of IV solution Amount of solute in a fluid (dextrose, sodium, etc.)
ISOTONIC: concentration same as blood No osmosis No change in solute or water in blood, no shrink or
swell Increases amount of ECF
Caution w/ fluid volume overload (CHF, renal patients) Uses: replace fluid loss, dehydration, to administer
IVPB 0.9% NS, LR, D5%W
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ISOTONIC SOLUTIONS
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IV SOLUTIONS HYPERTONIC: Higher concentration of
solutes Osmosis pulls water out of cells Fluid shifts from intracellular > intravascular Increased fluid volume in vascular space
CAUTION with CHF patients May raise BP May irritate the vein walls Cells shrink Can cause “cellular dehydration”, cellular death Uses: dehydration, electrolyte replacement
(severe), expand blood volume D5LR, D5 0.9% NS, D5 0.45% NS, D10%,
albumin, dextran
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HYPERTONIC SOLUTIONS
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IV SOLUTIONS
HYPOTONIC: Lower concentration of solutes Osmosis pushes water into cell Fluid shifts from intravascular > interstitial >
intracellular Cell is re-hydrated Cells swell, can possibly “burst” – hemolysis Uses: DKA Can cause intravascular fluid depletion – caution !
May cause hypotension Can increase ICP from quick fluid shift
Cerebral edema 0.45% NS, 0.3% NS, 0.25% NS
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HYPOTONIC SOLUTIONS
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IV SOLUTIONS
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ISOTONIC HYPERTONIC HYPOTONIC
No osmosis; no shift
Osmosis pulls water out of cell; “raisin”
Osmosis pushes water into cell; “grape”
Uses: dehydration, fluid loss, commonly used for IVPB
Uses: dehydration, electrolyte replacement (severe)
Uses: DKA, cellular re-hydration, can replace daily NaCl requirement
Caution: fluid volume overload (cardiac, renal)
Cautions: fluid volume overload, hypertension, vein irritiation
Caution: hemolysis of cells, intravascular volume depletion, hypotension, cerebral edema
0.9% NS, LR, D5%W
D5 0.9% NS, D5 045% NS, D5 LR, D 10%, Albumin
0.45% NS, 0.3% NS, 0.25 % NS
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NORMAL SALINE
0.9% NS Isotonic – osmo same as blood NaCl = sodium chloride Non-caloric Standard “flush” solution Standard hydrating solution 0.45% NS (1/2) is hypotonic
Lower osmo, less concentrated
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SALINE
Saline - “NS” or “NaCl”.9% (is isotonic)
.45% is ½ (is hypotonic)
When mixed with D5 may become hypertonic - MUST WATCH FOR FLUID OVERLOAD
More fluid in intravascular space
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DEXTROSE
Contains dextrose and free water Available in a variety of concentrations, 5%
most common. 5% (D5W) is isotonic. Usually in mixture with NS; D5W alone can
cause severe hyponatremia, hypokalemia, and water intoxication.Dilutes body’s normal level of electrolytesNOT 1st choice for hydration
Cannot be administered w/ blood hemolysis
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DEXTROSE
Dextrose - “D”usually 5%
Also 10%, 20% (usually TPN only – hypertonic)
provides calories D5 = 170 cal/liter D10 = 340 cal/liter
cannot be used with blood, certain medsCheck compatibility
can affect blood glucose monitor DM
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ELECTROLYTE SOLUTIONS
Usually isotonic solutions that contain electrolytes in concentrations similar to plasma
Lactated Ringer’s most common contains potassium, sodium, chloride,
and calcium. Lactate added as bufferRingers solution = no lactate added
short-term use (48 hours) used for fluid loss (vomiting, diarrhea)
Electrolyte replacement
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ELECTROLYTE SOLUTIONS
Electrolyte solutionsRinger’s or Lactated Ringer’s (LR)provides electrolytes and hydrationshort-termmonitor ELECTROLYTESno caloriescannot use lactate if liver disease
present – cannot metabolize
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ELECTROLYTE SOLUTIONS
PlasmalyteMultiple combination
Dextrose Sodium chloride Sodium acetate Sodium gluconate Potassium chloride Magnesium Chloride
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IV THERAPY: ABBREVIATIONS
D5W NS = 0.9%D5 0.9% NS ½ NS = 0.45% (5% dextrose solution ¼ NS =
0.225% w/ 0.9% normal saline)
D5 0.45% NS (referred to as D5 ½ NS)
D5 0.45% NS @ 50 cc/hr D5 ½ NS @ 50 ml/hr
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IV THERAPY: ABBREVIATIONS
PICC KCL (meq)POC CaGlucTLC MgSO4HLSL
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TYPES OF IV INFUSIONS
Continuous – not interrupted, ordered rate
Intermittent - access for infusions that are only given at specific timesIV antibiotics
IV push - meds that are given all at once. Not given by LPN’s with exception of saline flush.
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IV PUSH
Meds NOT administered by LPN’sMust be given by RNDelivery is immediate
Saline flush (non-med) – 3-10 mL given directly into IV to maintain patency.
CAN be given by LPN
IVP
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INTERMITTENT INFUSIONS
Not continuous “Piggy-back” meds (IVPB) -
intermittent infusions given through continuous primary IV line. ie; IV antibiotics, IV potassiumCheck compatability between
“piggyback” and continuous IV solution Call Pharmacy re: drug-drug interactions Use on-line resources Use IV compatibility chart Incompatible drugs can cause a precipitate
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CONTINUOUS IV INFUSION
Can be large volume (250 to 1000cc) of solution administered continuously correct or maintain fluid and electrolyte balance.
Can be a medication being delivered on a continuous basis to maintain a constant serum level – ie; heparin,
insulin Needs to be infused with IV pump to avoid error
Continuous IV medications cannot be titrated (regulated) by LPN’s – must be done by RN