10 Questions
Why is it recommended to use the smaller gauge of catheter for IV cannulation if possible?
To reduce the risk of phlebitis
What is the purpose of intravenous (IV) cannulation?
To allow for venous access for blood sampling and fluid/medication administration
In which situation would it be appropriate to use the largest-gauge catheter for IV cannulation?
For patients expected to require large volumes infused over a short period
What is the significance of using the patient's non-dominant arm for prolonged IV therapy?
It minimizes the risk of vein damage in the dominant arm
Which IV cannula size and color coding is recommended for use in massive trauma situations?
14G, Orange
What method can be used to highlight the vein by holding the patient’s arm down?
Using gravity
When choosing the size of the cannula, which factor determines whether the smallest or largest needle is used?
The amount of blood needed for transfusion
What should be done after achieving flashback during cannula insertion?
Apply pressure to the vein at the tip of the cannula and remove the needle fully
When is it preferable to apply the tourniquet around the patient's arm?
Before locating a good vein
What action should be taken if you have difficulty finding a good vein on one arm?
Use an ultrasound to locate a good vein
Study Notes
IV Cannulation Recommendations
- Using a smaller gauge of catheter for IV cannulation is recommended when possible to minimize tissue damage and promote patient comfort.
Purpose of IV Cannulation
- The primary purpose of intravenous (IV) cannulation is to administer medications, fluids, and other therapies directly into the bloodstream.
Choosing the Right Catheter Size
- A larger-gauge catheter is recommended in massive trauma situations where high-volume fluid resuscitation is required.
- The choice of cannula size depends on the patient's vein size, with smaller veins requiring smaller needles.
Considerations for IV Therapy
- For prolonged IV therapy, it is recommended to use the patient's non-dominant arm to minimize disruption to daily activities.
Vein Visualization Techniques
- Holding the patient's arm down can help highlight the vein and make it more visible for cannulation.
- Applying a tourniquet around the patient's arm can also help to make the vein more prominent, but it should be done just before attempting cannulation.
Cannula Insertion and Flashback
- After achieving flashback during cannula insertion, the needle should be advanced further into the vein to ensure proper placement.
Troubleshooting Vein Access
- If difficulty is encountered in finding a good vein on one arm, the other arm should be attempted to ensure successful IV cannulation.
Test your knowledge on the technique of intravenous (IV) cannulation, which involves placing a catheter or cannula inside a vein to provide venous access for sampling blood and administering fluids, medications, and blood products.
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