Kevin Arnold RN, BSN

transcript

Ultrasound Guided Peripheral IV Technique

Precision & Solution for the Hidden Veins

You should develop accurate propriocetion with practice.

Common Difficult StickObeseEdematousDehydratedDiabeticDependent on dialysis

Post chemotherapyA drug abuserPost mastectomyIn shock

Vein Anatomy

Fig. 2 http://www.daviddarling.info/images/vein.jpgFig. 1 http://images.tutorvista.com/content/transportation/illustration-of-normal-vein.jpeg

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Fig. 2

Arm Vein Anatomy

http://vascularultrasound.net/wp-content/uploads/2010/08/armveins2-copy.jpg

Upper Arm Vein Anatomy

Ultrasound View – Upper Arm

BasilicBrachials

ArteryBrachial

http://img.medscape.com/pi/emed/ckb/clinical_procedures/79926-104340-1433943-1464224.jpg

Ultrasound View – Upper Arm

Nerve Bundle

http://img.medscape.com/pi/emed/ckb/clinical_procedures/79926-104340-1433943-1464224.jpg

Typical Sizes & Flow RatesVessel Diameter (mm) Blood Flow (ml/min)

Cephalic 6 45

Basilic 8 80

Axillary 16 300

Subclavian 19 800

Superior Vena Cava 20 2000& turbid

Vascular Access Device Selection, Insertion, and Management: BARD ACCESS SSYETSMS, p12.

Anatomical PerformanceOpinion…Veins in forearms do not tolerate high rates well, but

are less likely to dislodgeVeins in dominant hands tolerate higher rates, but

are more likely to dislodge and develop phlebitis

“Rule of Thumb”Be patientLook for sites that will have the best possible successUse warm packs if extremities are cold to touchAvoid veins in ante-cubital fosa and wrists if possibleUse good judgmentAvoid sticking nerve bundlesWorst case scenario:

Helpful vein dilator – nitro paste between the fingers, with MD order, will dilate veins

More “Rule of Thumb”Start with forearm

Ulnar, Radial, Cephalic

Then..upper arm superficialCephalic

Then..upper arm deepBasilicBrachial

Ultrasound Equipment

Insert your type of machine…Include location and instructions for checkout & use.

Fig. 2 http://www.bardaccess.com/assets/images/products/ultrasound/siterite6_unit_hero.jpg

Fig. 3 http://65.36.201.165/instrumentpics/sonositeiLook.jpg

Fig.1 Photo by Kevin Arnold, RN, BSN. kev1999@gmail.com

Fig. 3Fig. 2Fig. 1

Ultrasound TechnologyVery high frequency sound wavesRequires fluid medium for oscillating transmissionVisual images are the reflection of echoes of high

frequency sound beams from soft tissuesUltrasound waves do not transmit through airSound waves do not penetrate high density areas

Ultrasound MachinesAlways plug in power adapterBattery life is unpredictableMachine must be signed out in log book located at

respective nursing stationClean before and after usePlease take careful care in handling equipmentVery expensive… $15,000 - $25,000Replacement probe… $3,500 + (don’t drop it)

Ultrasound MachinesHold probe at 90 degree angle to skin surface for best

image results

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Ultrasound – Maximize Your ImageDepth should be adjusted so that the view of target

structures is maximized while allowing structures posterior to the target to also be seen

Gain should be adjusted until there is a slight fill in of white pixels in the vein

Fluid filled vessels should appear black, void of echoes

http://www.ivteam.com/wp-content/uploads/2008/11/ultra.jpg

Selecting the VeinDepress vessels to differentiate veins from arteriesVein will stay depressed.Arteries will “pulsate” NOTE: Patients with low BP may not pulsate.Trace vein with probe to find a straight section of the veinMark endpoints to visualize vein pathAvoid nerve bundlesVein depth discussed later…

http://www.ivteam.com/wp-content/uploads/2008/11/ultra.jpg

Selecting the CatheterCatheter size selection should reflect size of available

vessel and type of therapy to minimize/prevent complications and maintain adequate access.

NOTE: Phlebogenic drugs are best given through a small catheter in the largest available vessel.

Catheter length should be adequate to ensure that ½ of the catheter will reside in the lumen of the vessel. Be sure to take the angle of approach into consideration when determining vessel depth (depth scale available on US screen).

CC: Vein Depth | Stick Angle | Catheter Length

Vein Depth Catheter Length to Reach Vein

Stick Angle

IV Catheter

Image created by Kevin Arnold, RN, BSN. kev1999@gmail.com

This chart represents the catheter lengths needed just to reach the vein.

The length to reach the vein should not be more than one-half of your catheter length.

30° 45° 75°0.5 cm 1.0 0.7 0.51.0 cm 2.0 1.4 1.01.5 cm 3.0 2.1 1.62.0 cm 4.0 2.8 2.12.5 cm 5.0 3.5 2.6Ve

Stick Angle (degrees from skin)

CC: Vein Depth | Stick Angle | Catheter Length

Chart created by Kevin Arnold, RN, BSN. kev1999@gmail.com

Catheter Length = Vein Depth / [Sin(Stick Angle x (Pie()/180))]

Selecting the CatheterFloor Stock [ Insert your model ]

1.25 inch | 32 mm18, 20, 22, 24 gauge

U/S Cart Stock [ Insert your model ]1.75 in | 45 mm20 gaugeThis will require adding tubing

Choose one-handed use products

Fig. 2 http://www.mtrhealth.com/ImageViewer.aspx?img=~/public/images/425-2543.jpg&w=150

Fig. 1 http://catalog.bd.com/ecat/images/f10/bdnexiva.jpg

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Stick TechniqueClasp probe with a “C” grip close to the end…

holding the probe far from the end will allow too much movement.

Gripping with a “C” allows use of your pinky finger

and/or butt of you hand to stabilize your hand against

patient arm.

Stick TechniqueStabilize your hand holding probe

with one finger or wrist against patient’s arm.

Wrap ultrasound cord around arm to prevent dropping probe.

Keep ultrasound parallel to skin.Use on-screen guide to align

center.

Site PrepMark endpoints to visualize vein path and insertion area

Impressions will stay for a while and not rub off in prep.

Fig. 2 Image created by Kevin Arnold, RN, BSN. kev1999@gmail.comFig. 1 Image created by Kevin Arnold, RN, BSN. kev1999@gmail.com

Fig. 1 Fig. 2

Vein Direction

Site PrepUsing friction, scrub the selected site about 3 inches in

diameter for 30 sec and allow to dry (Scrub 2 minutes for areas of dense hair)

NOTE: Do not blot or wipe on site to speed drying. Prep surface of transducer using chlorahexadine

sponge (once prepped, do not allow probe to contact non-prepped areas.)

Apply a small amount of sterile gel to probe or above selected insertion site

Stick TechniqueConsider the concept of catheter length vs. angle of

insertion. It is important to balance the two. Use on-screen guide to measure depth of vein and

direction. Each dot = ½ cm.Veins around 1.0 cm deep are usually the easiest.Sticks will be easier with a higher angle of insertion, but

this must be balanced with the catheter’s ability to bend.Avoid kinking the catheter.

http://www.bardaccess.com/assets/images/products/ultrasound/supporting/product-siterite-needles.jpg

Stick TechniquePlace probe above where you anticipate

needle tip will enter vein. Imagine your needle as the hypotenuse of the triangle you are forming. Drag from above expected insertion site to eliminate gel entering insertion area.

Use minimal amount of gel. Too much gel makes stabilizing probe difficult.

http://www.bardaccess.com/assets/images/products/ultrasound/supporting/product-siterite-needles.jpg

Stick TechniqueIn general it is easier to visualize your needle if you stick in

the 45 – 65 degrees range from the skin. Then lower your angle to thread the catheter.

Fig. 2 Image created by Kevin Arnold, RN, BSN. kev1999@gmail.com

Fig. 1 Fig. 2

Fig. 1 Image created by Kevin Arnold, RN, BSN. kev1999@gmail.com

Stick TechniqueScan probe to view needle tip by moving probe to and from

insertion site.You may inadvertently stick through both sides of vein wall. If

so, you should see and feel the vein wall “pop” into place when retracting the needle out of the deeper side of the vein wall.

You should have excellent blood flow when tip is in the middle of the vein.

After visualizing tip of needle in center of vein, it is okay to lessen the angle of the needle as you begin to thread the catheter.

Stick Technique-ConfirmationNeedle entering and visible in vein

Fig. 2 http://www.bluephantom.com/product_thumbs/t_basilic_vein_ultrasound_needle_cannulation_PICC_training.jpg

Fig. 1 http://img.medscape.com/pi/emed/ckb/clinical_procedures/79926-104340-1433943-1464756.jpg

Fig. 1 Fig2 1

Stick Technique-ConfirmationSide View (Horizontal Plane)

http://www.bluephantom.com/product_thumbs/t_brachial_vein_ultrasound_needle_insertion_model.jpg

Stick Technique-Video 1

Video created by Kevin Arnold, RN, BSN. kev1999@gmail.com

Stick Technique-Video 2

Video created by Kevin Arnold, RN, BSN. kev1999@gmail.com

Potential ComplicationsArterial punctureAdjacent nerve damageInfiltrationInfection – local & systemicPotential DVT induced by repeated injury to vessel or the

presence of a catheterInjury to vessel preventing arteriovenous fistulas sites for

renal patients

CC: Common PitfallsBeware of threading in the “sidewall” of the vein.It is common to get some blood return after

threading through part of the sidewall. It is very important to visualize the needle tip in the center of the vein opening.

http://www.daviddarling.info/images/vein.jpg

CC: Common PitfallsMy needle is under the skin but I cant see the tip?

After needle insertion, make sure the probe is close to the insertion area.

Move the probe closer to the insertion site and scan outward

You may be too deep. Look for movement below vein

I buried my needle and I still can’t reach the vein?Retract and advance at a steeper angle, but make sure to

allow sufficient catheter length left for in the vein. Infiltration is likely if catheter is too short.

Common RemindersYou will constantly have to remind students:

Keep your eyes on the screen…not the insertion area.Stick steeper…steeper is much easier dot see tip.Don’t hover over patient with needle…just stick quickly

through skin and then use the screen to guide the needle into the vein.

Use your wrist/finger to stabilize your probe hand…free handing the probe will allow too much movement. Use a “C” grip.

DocumentationDocument IV site location and preparation, gauge of

catheter, number of attempts, and type of dressing in the medical record.

Use of ultrasound for guidance should be included in note.

Questions?

Kevin Arnold RN, BSN

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