Intravenous Cannulas

Last updated 25/12/16

Definition

• Cannula used for intravenous access (cannulation)

Features

• Yellow 24G
• Neonatal and small children
• Blue 22G
• 1L in 22 min
• Children and small adults or difficult veins
• Pink 20G
• Flow 1L in 15 min
• Most common size used in hospitals
• Green 18G
• Flow 1L in 10 min
• Labour, Blood transfuion
• Grey 16G
• Flow 1L in 6 min
• Surgical emergencies, trauma
• Orange 14G
• Flow 1L in 3-5 min
• Major haemorrhage
• Can be used for
• Needle Thoracentesis
• Needle Cricothyroidotomy

Indications

Contraindications

Equipment

Procedure

Complications

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References