Clinical
Perspective
IV Cannulation
By Ms.Ṇikethana R Nair,M.Sc, MBA, M.Sc, M.Phil,
NABH Assessor, Nursing Superintendent,
Meenakshi Mision Hospital & Research Center -
Madurai.
Types of Cannula
•IV Cannula Pen Type Model
•IV Cannula with Wings Model
•IV Cannula with Injection Part Model
•IV Cannula Y Type Model
•Scalp Vein Cannula
Why Veins are Suitable for Insertion
•Superficial
•Palpabe
•Visible
•Blood at Low Pressure
•Relatively Large internal Diameter
•Tough Vasuclar Wall -Able to form a seal
around the cannula
•Offer a Rapid Route -Circulatory system
Signs of Good Vein
1.Bouncy
2.Soft
3.Above Previous Vein
4.Refills when Depressed
5.Visible
6.Has a Large Lumen
7.Well Supported
8.Staright
9.Easily Palpable
Tips
No. Features Rational
1Smallest size of catheter
2EMR situation use a large
gauge catheter
3Upper Extremities
4Lower extremities
5Peripheral venous access
interfere less with pt's
6Recommended to choose a
straight portion of a vein
7Use the patient's non-dominant
arm
8For prolonged courses of
therapy it is recommended to
start distally & move
proximally as distal catheters
are replaced.
Tips
No. Features Rational
1Smallest size of catheter To prevent damage to the vessel intima
2EMR situation use a large
gauge catheter
To allow administration of large volumes
of fluid quickly
3Upper Extremities The superficial veins
4Lower extremities Peripheral venous access
5Peripheral venous access
interfere less with pt's
Mobility & pose a lower risk for
phlebitis
6Recommended to choose a
straight portion of a vein
To minimize the chance of hitting valves
7Use the patient's non-dominant
arm
Convenience, Further damage is been
prevented
8For prolonged courses of
therapy it is recommended to
start distally & move
proximally as distal catheters
are replaced.
Distal Damage -Proximal is available
for the further line
Proximal As first Line -Distal u cant
get the line for the therapy
Contraindications
Avoid Peripheral Venous Access in
1.An injured,
2.Infected,
3.Burned extremity -if possible
Volar Wrist & Dorsal Wrist
Lower Limbs
Scalp Veins -PAEDIATRICS
Inappropriate Sites
•Edematous Site
•Haematous
•Scarred Sites
•Arms with Fistula's or Vascular Grafts
•Thrombosed
•Fibrosed
•Thin & Fragile
•Near Bony Prominises
•Have undergone Multiple Pricks
Equipment
•Non-sterile gloves
•Tourniquet
•Antiseptic or Alcohol wipes
•Anaesthetic Agent
•5-ml syringe with NS or Poshi
Flush (3ml or 5ml)
•Sterile gauze
•Cannula
•Saline
•Tegaderm or Dynaplast or Easy
Fix
•Vein Deductor
Advance Techniques
Red -SP Saline Syringe
Blue -Xs Saline Syringe
Topical Anesthesia for IV Insertion
•Lidocaine
•Buffered lidocaine
•Bacteriostatic normal saline
Before The Procedure
•Introduceyourselftothepatient.
•Explaintheproceduretothepatient&gaininformed
consenttocontinue
•Makesurethereisadequatelight&thattheroomis
warmenoughtoencouragevasodilation
•Makesurethepatientisinacomfortableposition
•Thepatientsskinshouldbekeptcleanfortheprocedure
Standard Precautions
Steps of Procedure
Steps of Procedure
Steps of Procedure
Steps of Procedure
Stop & Remove
Cannula Placement
IV Cannulation in Fragile Veins
•Saynototourniquetasmuchaspossible
•Usethesmallestcatheterasmuchas
possible-20to22g
•UseBevelUp,LowAngle&Slowlybut
sureyapproach
•SecurethecatherterwithMicroporeor
Transparentdressing
•ProvideHealthEducation
IV Cannulation for the Geriatrics
•Extremely Challenging
•Avoid applying too much friction when
preparing the skin
•use the smallest catheter
•Know the veins depth
•If possible do not use tourniquet,
Incase use a soft material ones
•stabilise the vein & insert the
catheter on top of the vein
•Hypoallergic Tape tape to be used