IV Cannula Chart: A Comprehensive Guide to Intravenous Catheters

In this blog post, we will provide you with a detailed IV cannula chart that will serve as your one-stop reference guide to intravenous catheters. Whether you are a healthcare professional or someone curious about medical devices, this article will provide you with all the necessary information.

Introduction to IV Cannulas

IV cannulas, also known as intravenous catheters, are medical devices used to administer fluids, medication, or blood products directly into a patient’s bloodstream. They are widely used in hospitals, clinics, and other healthcare settings. IV cannulas consist of a hollow plastic or metal tube that is inserted into a vein, allowing fluids or medication to be delivered efficiently.

The Importance of IV Cannula Size

One crucial aspect of IV cannulas is their size or gauge. The gauge of an IV cannula determines the diameter of the catheter. Different sizes of cannulas are used based on the specific requirements of the patient and the treatment being administered.

The IV cannula chart below provides a comprehensive overview of the different gauges, their colors, and their typical uses:

Gauge Color Typical Use
14G Pink Used for trauma or rapid infusion
16G Grey Surgical procedures or rapid infusion
18G Green General IV access or blood transfusion
20G Pink Pediatric or geriatric patients
22G Blue Medication administration or blood sampling

Insertion Techniques and Complications

Proper insertion techniques and the prevention of complications are vital for the safe and effective use of IV cannulas. Healthcare professionals must be trained to perform aseptic techniques, maintain sterile conditions, and selecappropriate cannula size for each patient.

Some common complications associated with IV cannulas include infiltration, phlebitis, infection, and occlusion. It is crucial to monitor patients for any signs of complications and address them promptly to prevent further health risks.

Tips for Successful IV Cannula Insertion

Here are some helpful tips for healthcare professionals to ensure successful IV cannula insertion:

  • Select the appropriate cannula size based on patient requirements.
  • Use aseptic techniques and follow proper hand hygiene protocols.
  • Choose an appropriate insertion site and secure the cannula properly.
  • Regularly assess the insertion site for any signs of complications.
  • Provide patient education on self-care and signs of complications.


In conclusion, a thorough understanding of IV cannulas is essential for healthcare professionals involved in the administration of fluids and medications. The provided IV cannula chart can serve as a handy reference guide to select the appropriate cannula size for different patient needs. By following proper insertion techniques and monitoring for complications, healthcare professionals can ensure safe and effective IV cannula usage.

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