IV Catheter Sites & Placement (ASAN002/11) Flashcards
Intravenous Site Selection
Considerations:\nPatient condition\nPatient’s Tx plan\nReason for Venous access\nAvailability of Catheter\nSkill of person placing catheter
Site selection – Patient Condition:
Do they have any trauma?\nAre they dyspnoeic?– they will need minimal restraint therefore cephalic may not be appropriate.
Site selection – Patient’s Tx Plan:
What is patient’s treatment plan?\nWill multiple types of fluids &/or medications be given?\nOr just IV fluids?\nHow long will catheter need to be in place?
Site Selection – Reason for Venous Access:
Reason for access will affect type of catheter and placement.\nMultiple blood sampling.\nDuring Sx in case of emergency.
Site Selection – Availability of Catheter:
You may not have required catheter on hand.\ne.g. Central lines are expensive & require expertise to place them.\nAlternative for high volumes of fluids – a large gauge over–the–needle catheter placed in jugular vein.
Site Selection – Skill of Person Placing Catheter:
Expertise of person placing catheter will affect which vein and catheter they choose.
Cephalic Vein
Most common vein used for IV catheter placement.\nEasily accessible & easy to see.\nCommonly placed in antebrachial part of cephalic vein. (between carpus & elbow, on cranio–medial aspect of limb)\nCephalic vein carries blood from the distal extremity to the jugular vein.
Cephalic Vein – Suitable Catheters:
Butterfly\nOver–the–Needle
IMAGE – Cephalic Vein
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Saphenous Vein – Lateral
Used as alternative to cephalic vein when they are not accessible (trauma etc), or if cephalic vein has been used and no longer viable.\nRuns along the lateral (outside) of the hind limb.\nNot as large as cephalic vein.\nCan be difficult to secure catheter in place.\nSaphenous vein carries blood to the femoral vein.
Saphenous Vein (Lat) – Suitable Catheters:
Butterfly\nOver–the–needle
IMAGE – Lateral Saphenous Vein
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Saphenous Vein – Medial
Runs along medial (inner) side of hind limb.\nGood vein for catheter placement but not often used.\nSecuring & maintaining catheter can be difficult.
Medial Saphenous Vein – Suitable Catheters:
Butterfly\nOver–the–needle
IMAGE – Medial Saphenous Vein
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Jugular Vein
Travels along ventral aspect of neck in the muscular jugular groove, from mandible to shoulder.\nMuch larger vein than cephalic & saphenous.\nOften used for blood sampling & placing catheters in small patients. \nJugular vein drains blood from the head.
Jugular Vein – Suitable Catheters:
Butterfly\nOver–the–Needle\nThrough–the–Needle (for central lines)
IMAGE – Jugular Vein
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Ear Vein
The marginal ear vein is used.\nCommonly used in small ‘pocket’ pets.\nSometimes used in dogs such as Bassett Hounds.\nUsed for blood sampling & IV catheter placement.
Ear Vein – Suitable Catheters:
Butterfly\nOver–the–Needle (dependent on size of patient)
IMAGE – Ear Vein
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Tail Vein
Often used in small pets (pocket pets / rodents).\nUsed for blood sampling.\nSize of patient determines if a catheter can be placed or not.\nSpecific IV catheters are available for rodents.\nTail vein used for blood collection in large animals (e.g. Cattle).
IMAGE – Tail Vein
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Intravenous Catheter Placement\n– Patient Preparation
Ensure you are aware of any injuries or painful areas BEFORE positioning & restraining patient.\nCats & Sml–Med Dogs: Place on tx table & position in sternal recumbency.\nLarge Dogs: Often easier to have them sitting on the floor.\nHave all equipment ready & in reach.\nEnsure hands are clean & wear gloves if necesary.
IMAGE – Cephalic placement of Butterfly catheter
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IMAGE – Cephalic placement of Over–the–needle catheter pt 1
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IMAGE – Cephalic placement of Over–the–needle catheter pt 2
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