canulaby gamaya

8/3/2019 canulaby gamaya

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5. Equipment

Tourniquet

Gloves

Cannula (correctly sized as above)

Skin prep solution/alcohol swab

Sterile gauze/cotton wool

5ml Syringe

5ml Normal Saline (CHECK EXPIRY DATE)

Appropriate dressing - Opsite/Tegaderm

Pillow Sharps bin


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6. Procedure

Gather equipment

Wash hands

Obtain verbal consent

Place patients arm on a pillow

Apply tourniquet

Take time to select correct vein - palpate vein, making sure it is not pulsatile! Dorsum of thehand usually has the best veins

Put on gloves

Clean area with prep/swab

Apply skin traction with one hand to stabilise the vein into position

Insert cannula at angle of around 15-20o towards the selected vein

Advance until flashback of blood is seen in chamber - do not stop at this point!

Lower angle of insertion and continue insertion of cannula approx 5mm

Stop and withdraw the needle about 5mm - secondary flashback should be seen along the lengthof the cannula

Advance the catheter over the needle with one hand, keeping the needle still with the other hand- no/minimal resistance should be experienced


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Release tourniquet before withdrawing needle

Apply digital pressure above cannula tip to control bleeding and remove needle

Dispose of needle immediately in sharps bin

Apply luer lock cap

Give 5mls Normal Saline to assess patency before any infusion

Apply appropriate dressing to secure cannula

Dispose of equipment

7. Tips

Once a flashback is visualised - do not stop advancing both needle and catheter. Look closely atthe end of a cannula - the needle tip protrudes from the catheter tip and this is how far you mustadvance before the cannula will fully enter the vein

Patients with no visible veins + Obese patients - Take your time. Time well spent applying thetourniquet to both arms individually and palpating carefully (esp antecubital fossa) will revealveins and save you having to start all over again and patient distress. If desperate use the veins

on the carpal aspect of the wrist with a 22G (blue)

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