Fundamentals of Nursing Exam IV TTU – Flashcards

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Patients benefiting form longterm vascular access devices include
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Adults receiving vesicants and irritants such as chemo; an elderly, dehydrated, and diabetic patient w/ poor peripheral circulation; patients expected IV antibiotic therapy 7 days or greater for severe respiratory infection; patients being managed at home for end stage cancer w/ cont, IV of opioids, patient having major abdominal surgery requiring TPN nutrition; patient requiring frequent long term phlebotomy treatment for polycythemia.
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What are the two most complications of CVA device?
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Occlusion and infection
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When should Xray be obtained for tunneled CVAD?
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If symptoms of displacement are present and before using the first time
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The nurse is starting a continuous infusion on a patient with CVAD. Unable flush the cath, what actions should the nurse take?
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Have patient cough or breath deep, reposition patients, have patient raise arms, making sure tubing is kink free and unclamped. If unsuccessful, notify HCP. infusing fluids by gravity would be successful if there is an occlusion. Need MD order for thrombolytic. Never use syringe smaller than 5 ml psi is too great could cause migration.
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Catheter migration
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irregular heart rate or dysrhythmia
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Thrombosis
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pain numbness in neck and shoulder
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Occlusion
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absent blood return, sluggish infusion
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Patient w/tunneled CVAD , nurse cleaning exit site observes purulent drainage and redness. Upon reviewing chart she notices patients been febrile w/ elevated WBC for the past 24 hr. Pt alert w/decrease U/O. Med records indicate he has been receiving parenteral nutrition. What actions should nurse take?
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Pt has local and systemic infection. HCP should be notified for further instruction which may include Blood culture and admin of antibiotics
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Nurse is changing dressing on PICC line and notices patients arm is swollen and cool to touch. Patient has been infusing nutrition, client states machine beeping a lot and silencing it. Extravasation os suspected what action should nurse take?
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First stop infusion. May admin antidote per protocol for vesicant drug Notify HCP Apply warm compress & emotional support PiCC line should remain in place until removal order Inform patient purpose and importance of alarm Never scold a patient
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Nurse is obtaining blood sample from CVAD. What complication could arise if she forgets to clamp catheter tip before capping
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Air embolus
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What position should patient be placed if experiencing an air embolism?
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Trendelenburg's position
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Air Embolus
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cyanosis, dyspnea
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Advantage of CVAD line
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can stay in longer patient can receive longterm therapy with related access
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dressing change supplies for CVAD include
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clean to remove dressing and should be removed in direction catheter was inserted,sterile gloves to apply new, transparent dressing (change5-7 days) or sterile gauze( every 48 hours), tape, antimicrobial swabs clean site horizontal, vertical and circular motion, masks
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Large vein for CVAD is necessary
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because the larger lumen minimizes risk of complications to vessels like irritation, inflammation sclerosis
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Which two devices are considered permanent
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Tunneled CVAD and implanted venous port
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Can strained nurse insert PICC line
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yes
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Complications of PICC line
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sepsis, air embolus, thrombosis, occlusion, phlebitis
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PICC line
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usually located antecubital fossa
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Implanted venous port
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requires surgical implantation and should be flushed with 3-5 ml of heparin monthly
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the nurse KNOWS....a 3 ml syringe should never be used to flush a CVAD but why?
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3 ml syringes exert too high a psi, a 10 ml syringe is used to minimize pressure.
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Can blood pressure be taken in the arm of the PICC or MCL line
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No, but can be taken on both arms of CVAD
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When taking blood sample from an implanted venous port the nurse should aspirate?
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and discard 5 ml of blood before obtaining sample to avoid dilution from initial saline flush, sterile gloves are necessary when palpating for port
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Implanted venous port requires
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Huber needle
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Tunneled CVAD
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has single double, triple lumens
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MCL line
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usually shorter than PICC line
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Percutaneous CVAD
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inserted directly through skin into large vein
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The percutaneous central venous catheter has less risk of developing an infection than the tunneled CVAD.
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A percutaneous central venous catheter is inserted directly through the skin into a large vein. Because the distance between the end of the catheter and the vein is short, there is a high risk of infection.
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Heparin flush in the port is used when and why
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when continuous infusion is not indicated. It is used o prevent thrombus formation at the catheter tip
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What is purpose of heparin flush regarding care of Central vascular access device?
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reduces incidence of clot formation at catheter tip
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An implanted infusion port may have a single- or double subcutaneous injection port.
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No
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Blood samples may be obtained from CVADs and implanted infusion ports.
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true
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Complications of vascular access devices include infection and occlusion.
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true
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Taking blood pressure or drawing blood should be avoided in the arm where a PICC or MCL line is located.
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You should avoid taking a blood pressure or obtaining a blood sample from the arm in which a PICC or MCL line is inserted, as pressure will temporarily occlude blood flow.
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characteristics of a tunneled CVAD
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inserted through subQ between clavicle and nipple threaded into surer vena cava, lower risk of infection than non tunneled CVAD,held in place with dacron cuff, surgical procedure, nth tip lies in superior vena cava, may be single double or triple
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Uses of CVAD device
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Iv fluids, blood samples, blood products, meds, parenteral nutrition, chemotherapy.
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Categories of meds safest for pregnancy
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A ; B
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Example of medicine cat. X
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Acutane
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Example of medication cat. d
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Tetracycline
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Route of admin for injections include
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subq, IM, ID, IV
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The use of alcohol swabs and cleaning
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infection control use circular motion .
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Injections
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pathway by which a drug comes into contact with the body
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Ampules
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glass genie like bottles to which you break open away from you using alcohol swab package. Come in single use 1-10 ml. use filter needle to keep glass out of meds.
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Why should you always tap ampule prior to breaking?
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It ensures all the med is at bottom of ampule
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Vials
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come in single or multi dose, have rubber stopper that should always be wiped off to maintain sterility.
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Reconstituted powder vials should include
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Date, time opened, medication,diluent and concentration, initials.
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Multidose vials should include the following info after use to prevent contamination
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Date, Time and initials on vials when opened. Can be used for up to 30 days swab top w/ alcohol always,
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Prevention of needle contamination include the following
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avoid letting needle touch contaminated surfaces outer edges of ampule, or vial outer surface of needle cap, your hands, countertop, table surface. Never touch the length of the plunger or inner part of barrel. Always keep tip of syringe covered with cap or needle
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Infection control measures also include the following
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maintaining aspect technique by wash hands, wear gloves, cleaning site with alcohol or chlrohexidine
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Always allow alcohol
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to dry completely
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How do you prepare the skin for injection to prevent infection.
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1st: wash skin soiled with dirt, drainage, feces, with soap and water using friction and circular motion while cleaning with antiseptic swab. Swab from center of site using circular motion move out ward an inch radius
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Size of needle is determined by which factors
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size of patient. tissue to be injected in, type of medication, age of patient. how much medicine is being admin.
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Gauge of needles are determined by
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site of injection as well as viscosity of meds. Gauges are the smaller the gauge the larger the whole
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Parts of syringe include.
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the tip (where needle goes), the barrel (measured/marked chamber), plunger
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Always maintain sterility by not touching
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needle, tip, plunger
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How to accurately measure meds is to
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line up middle ring of plunger where it touches the barrel with the correct line measured dose
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Obese adults get injections at what angle?
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90 degree
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Before giving a patient an injection, the nurse changes needles why?
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provides sharper needle with less pain, keeps meds from tracking through tissues.
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After giving a subcutaneous injection of heparin, the nurse refrains from massaging the site to prevent?
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Tissue damage
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Needle stick precautions state
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Use needless system or safety devices.Don't recap needle they are contaminated. Engage safety device & dispose of used needles in sharps after use. Always report sharp related injuries
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You should NEVER EVER
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recap used needles
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Clean & unused you may
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scoop up recap
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Needles are color coded
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Blue 22, pink 20, green 18, yellow 24
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Always inject with needle pointed
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bevel up
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Needle selection includes
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length in inches which can be determined by route, size of patient and location.
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Needle parts
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bevel, shaft, gauge, & hub
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ID
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3/8 inch needle. Gauge can be 25-27 hold up to 0.1-0.3 ml & used for TB and allergy testing. Bleb will appear if bleb doesn't appear or bleeds it went in t sleep could go into anaphylactic shock
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ID injection angle
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15 degrees. Do not scratch the site or rub
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why should the nurse avoid massaging interdermal site?
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because it will disperse medication into underlying tissues.
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sub Q
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loose connective tissue slower than IM gauges 25-26;3/8-5/8 in needle holds 0.1-1ml of medicine. pinch skin insert needle ,administer meds ; let go
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Sub Q areas
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Scapular, deltoid, lovehandles, and vastus lateralis, belly. Avoid scars, lesions and dirty areas
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Sub Q angle of needle
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45 to 90 degree angle. If you can pinch 2 in god in at 90 degree angle. 1 inch at a 45 angle.
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SubQ meds
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Insulin rotate sites, Lovenox = love handles, popgun, anthrax vax
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IM
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deep muscle faster infusion rate. Hold skin taught ; once needle is in skin use non dominant hand to hold needle pirate for blood return; if no blood noted inject slow. 1-1.5 in needles with gauges being 22-23 inches.20-21 hormones (thick viscous) Deltoid only can have 1 ml of med. other areas more unusual for more than 3. up to 5 depending on med.
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Which of the following accurately describes hoe to local the ventrogluteal site?
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Place heel of hand over the greater trochanter, thumb towards patients groin,index fingers pointed towards the anterior superior iliac spine, middle fingers extend along the iliac crest
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Should aspirate when admin IM... why?
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Yes because we don't want to see blood return. If blood presents, do not proceed. Med could get into blood stream causing bad reaction. Get blood start over.
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Z track needle should be removed
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before skin is released to provide z track
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Slow injection rate reduces?
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Pain and tissue trauma
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ZTrack method
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releasing the tissues seals the needle track
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IM sites
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Deltoid only 1ml, ventrogluteal preferred site, vastus lateralis (babies vaccine sites)
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We no longer give IM meds where?
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Dorsogluteal, because it is not effective
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Types of IM meds include
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Antibiotics, antihistamine, vaccines
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Promethazine
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pushed to fast dilute or patient could loose fingers. always watch patient for reactions. If patient complains of burning stop admin and flush. Iv if infiltrated could cause bad reaction
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6 rights of med admin.
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right patient, right medicine, right dosage, right route, right time, right documentation.
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some other rights of med
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right dilution, speed of infusion,right to refuse
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Always do this with med admin follow up after admin of meds.
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check med with EMAR twice if insulin or heparin have another check dosage with you once drawn up, check for allergies and to see if meds are compatible with Iv fluids; also check again before aspirating out of vial,check 2 patient id, double check again at bedside. follow up stay for the first ten minutes.
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why is it important to inject air into vial?
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It prevents build up of negative pressure in the vial.
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peripheral access devices
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winged butterfly needle, short, over-the-needle- catheter, midline peripheral
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short, over-the-needle- catheter
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continuous intermittent infusion; short term duration
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midline peripheral catheter
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continuous & intermittent use up to 1-4 weeks
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winged butterfly IV catheter
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Infants requiring fluid maintenance. one time IV infusion; IV push add w/pH of 5-9
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IV patients 18 gauge (green)
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Trauma; blood transfusion; surgery. Adults scheduled for major surgery
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IV patients with 20 gauge (pink)
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continous or intermittent; blood transfusions. Young adults requiring fluid maintenance
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IV patients with 22 gauge (blue)
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continous or intermittent infusions; children and elderly patients. Admin of blood or blood products in peds & negates. Older adult requiring IV medications.
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IV patients with 24 (yellow)
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fragile veins for intermittent or continuous infusions; admin of blood or blood products in peds & neonates
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larger gauges are good for what pH of meds
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acidic meds like Vancomycin and other antibiotics
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IV sites nursing considerations
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Don't use o
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Isotonic
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D5W, LR, 0.9% NS
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the only fluids that can change with blood
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0.9% NS which is isotonic
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Which isotonic fluid is used in critical situations?
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0.9% NS
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Isotonic is used for
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vomiting ; diarrhea
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Isotonic contradictions in patients
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could cause increase fluid in renal patients or cardiac
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Hypotonic solutions
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0.45% NS or 1/2NS, 0.33% NS or 1/3 NS
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hypotonic fluids do what?
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Dilute extracellular fluid and rehydrate cells could exacerbate hypotentensive states in low BP. Will swell normal cells
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hypotonic
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Osmolality is less than outside. Moves osmosis into the cell. If normal swells the cell up
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Hypertonic
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D10W, D50W, D51/2NS or D50.9%NS, D5LR, 3%-5% NS
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hypertonic fluid are treated for what situations?
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Water intoxication. shifts fluid from ICF to ECF to vascular space to increase blood volume.
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The nurse knows to never push which fluid?
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KCL or potassium chloride. direct push could be fatal, because hyperkalemia will quickly develop
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What should the nurse verify before admin of KCL?
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Adequate U/O. serum levels of K+ to ensure it i below limits. Because hyperkalemia could quickly develop.
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IV fluids should be checked prior for the following?
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Clarity, color, and expiration date
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Procedure for preparing solution prior to initiating an IV is?
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Open infusion set, places roller clamp 2-5cm below drip chamber and moves roller clamp to off. Nurse removes protective sheath over the IV tubing port on IV bag, removes sheath of insertion spike and inserts spike into the bag Fill drip chamber 1/3 to 1/2 full, primes tubing making sure there are no air bubbles
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The nurse preparing solution prior to initiating IV therapy and she touches the spike accidentally. What is the best nursing action at this time?
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Discard contaminated tubing and get a new tubing set
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IV helpful hints.
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Let chlorhexidine dry thoroughly (it burns). If hairy you may clip hair (not shave). Don't stick more than twice if needle comes out get another. Pull skin tight bevel up.
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Standards to decrease IV infection
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Palpate site throughout the day for tenderness and redness. Inspect catheter site if patient develops tenderness, fever w/out obvious source ,or symptoms of local or blood stream infection. perform hand hygiene before and after palpating, inserting or replacing, or dressing. clan skin with chlorohexidine before venipuncture allow to dry thoroughly.DO NOT PALPATE SKIN AFTER CLEANING
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When should you replace dressing over catheter?
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when replacing catheter or when dressing becomes damp, loosened, or soiled.
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How often to change gauze dressings that cover IV site?
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very 48 hours unless soiled do it sooner.
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How long can IV tubing remain sterile
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96 hours
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How often should you clean injection ports
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before they are accessed every single time
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Documenting IV or pass on report should include
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time, date, intials on IV dressing. document time date, initials, catheter size used, number of sticks, type of fluid, flow rate,patients response (tolerated or not). Was it a difficult stick. document that as well. potency of IV, date IV started, amount left in bag
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Iv sites for adults
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Dorsal and ventral surface of arms (basilic & cephalic & median) avoid lateral surface of the wrist. Use most distill site in non dominant arm if possible.
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Tourniquet placement should be how many inches?
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4-6 inches above the antecubital fossa. In elderly you may use a blood pressure cuff.
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When should the tourniquet be released a second time?
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After flashback of blood return has been observed and catheter has been advanced off the stylet
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where would you move iv site if there were no complications?
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Proximal site from previous
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What angle should Iv puncture vein?
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10-30 degree angle
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Which of the following should be avoided for IV insertion?
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Foot of an adult because of thrombophlebitis risk, inner wrist because of tendons and nerves, distal site from previous site because increased risk of infiltrating new IV line, areas of venous burfication, shunt sites, left mastectomy side, side of paralysis, sclerosed cordlike veins,
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In children and older adults which IV site should be avoided?
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dorsal surface of hand because its fragile and early bumped
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Methods to improve venous distention
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Warm pack on extremity & stroking from distal to proximal below site never tap
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Avoid vein selection in
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Areas red tenderness, lesions, scars , pain or infection. extremity involved in CVA, shunts, and vasectomy site distal from last venous puncture go proximal instead, avoid venous valves, infiltrated sites
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phlebitis
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red, tenderness, edema along track of vein. in CVAD appears 7-10 days after insertion.stages 1-4 . 1 red watch site, 2 red tenderness streaking. 3 streaking slight chord felt, 4 feels chord hard red tender move IV
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infiltration
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cool to touch,spongy pallor, swollen, may need antidote if its a bad med.
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Tegaderm should be placed
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so that the colored portion hub of Iv tubing can be accessed to disconnect
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IV tubing must be changed
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every 96 hours
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Iv site needs to be moved or rotated
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every 96 hours
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How often to change IV fluid bag
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every 24 hours or sooner based on infusion rate.
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How much fluid should be left before changing bags.
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Bags should never empty completely. Always set alarm for 50 cc to remain
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Micro drip rate
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used often infants. easy to calculate rate times hourly by 1. there is our drip rate. Lo
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Clinical markers of volume include
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I/O, vital signs, dissented neck veins, edema, cap refill, auscutaion of lungs
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Fluid excess clinical manifestations include
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Hypetensive, crackles in lungs, peripheral edema, dissented neck veins,
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Fluid deficits include
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Hypotensive state, dry lips, low I/O, flat veins hard to stick temp increases, tenting of skin, hyperanetremia, sluggish cap refill
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When hanging blood products the nurse must.
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Use new tubing every time.
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Every two hours the nurse must check and verify
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The IV site is w/out tenderness edema, redness, and inflammation pus, wetness, bleeding.
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A saline lock should be flushed
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Every time it is used (before and after) Flush every eight hours.
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Saline lock, heparin lock, IV plug, or adapter are
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Extension sets with needless adapter
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Iv site is tender to palpation with an area of erythema the nurse must
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Stop infusion, discontinue IV, notify HCP, start new IV if continued therapy is needed, place moist warm compress
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Poor skin turgor, concentrated urine, dry mucous membranes
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Notify HCP, this may require readjustment of infusion rate
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Crackles over mid & lower lobes
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Reduce iv fluids, notify HCP, likely from fluid excess
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Abnormal serum electrolytes
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Notify HCP, may need order for additives IV or change in fluids
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IV site cool to touch, swelling, tenderness at site
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Stop infusion, discontinue IV, elevate effected extremity, restart newIV if continued therapy is necessary
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Rotating IV sites every 96 hours prevents
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Phlebitis
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Avoid IV running dry prevents
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Occlusion
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Use of volume control devices, Volutrol prevents
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Fluid volume access
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Maintains strict asepsis prevents
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Infection
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Why is it important to discontinue IV site if phlebitis is evident?
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Phlebitis is dangerous and blood clots can occur and may result in emboli. which may result in permanent damage
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The nurse notices failure of flow in the drip chamber w/ the roller clamp open and an absence of swelling the insertion site. What should the nurse do?
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Determine for potency by aspirating for blood return & check for kinking
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Situations in which a indicative of discontinuation of peripheral IV access
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Pt is being discharged home on PO meds. The EIpump alarm s sounding indicating occlusion and the nurse is unable to flush. The patients arm is swollen & cool to touch & is complaining of pain at IV site Pt arm red and tender to touch. IV site is dated 4 days ago
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Always inspect catheter after removal for intactness, if not intact the nurse must
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ER situation, must contact HCP immediately can cause embolus
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Primary danger of broken catheter tip is?
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Embolus
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Hematoma formation
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apply pressure dressing to site
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Site is reddened and tender
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Discontinue site, Notify HCP,May apply warm moist pack
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Catheter tipis broken off
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Notify HCP immediately, ER situation
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discontinuation of Iv should include
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time ,date, gauge & size of needleof IV, catheter tip intact
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