WHAT IS CANNULA? A cannula is a flexible tube that can be inserted into the body. For medical use, there are 11 different types of cannula. The most commonly used are the intravenous and the nasal cannula.
TYPES OF CANNULA Iv cannula pen-like model. Iv cannula with wings model. Iv cannula with injection part model. Iv cannula y-type model.
Pen-like model
With wings model
With injection part model
Y-type model
LENGTH OF CANNULA
INDICATION OF CANNULATION Repeated blood sampling Intravenous fluid administration Intravenous medications administration Intravenous chemotherapy administration Intravenous nutritional support Intravenous blood or blood products administration Intravenous administration of radiological contrast agents for computed tomography, magnetic resonance imaging, or nuclear imaging
PROCEDURE Introduce your self to patient . Explain the procedure. Approach with a confident, calm, caring attitude
Collect your equipment.
wash hand.
Selecting a vein Veins of the Forearm 1. Cephalic vein 2. Median Cubital vein 3. Accessory Cephalic vein 4. Basilic vein 5. Cephalic vein 6. Median antebrachial vein
CONT.. Veins of the Hand 1. Digital Dorsal veins 2. Dorsal Metacarpal veins 3. Dorsal venous network 4. Cephalic vein 5. Basilic vein
THE SITES SHOULD BE AVOIDED Wrist Legs, feet, ankles Veins below a previous IV infiltration Vein below a phlebitic area Sclerosed or thrombosed veins Areas of skin inflammation An arm affected by a radial mastectomy, edema, blood clot, or infection. An arm with an arteriovenous shunt of fistula
Apply tourniquet. Clean area with alcohol s
Remove needle cover
Insert the needle bevel up ward at about 30 ᶜ̊ & advance the rest of cannula into the vien
Release the tourniquet & apply pressure at the tip of cannula & remove the needle .